Species boundaries of Gulf of Mexico vestimentiferans (Polychaeta, Siboglinidae) inferred from mitochondrial genes - Miglietta, M P; Hourdez, S; Cowart, D A; Schaeffer, S W; Fisher, C R (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2010)
At least six morphospecies of vestimentiferan tubeworms are associated with cold seeps in the Gulf of Mexico (GOM). The physiology and ecology of the two best-studied species from depths above 1000 m in the upper Louisiana slope (Lamellibrachia luymesi and Seepiophila jonesi) are relatively well understood. The biology of one rare species from the upper slope (escarpiid sp. nov.) and three morphospecies found at greater depths in the GOM (Lamellibrachia sp. 1, L. sp. 2, and Escarpia laminata) are not as well understood. Here we address species distributions and boundaries of cold-seep tubeworms using phylogenetic hypotheses based on two mitochondrial genes. Fragments of the mitochondrial large ribosomal subunit rDNA (16S) and cytochrome oxidase subunit I (COI) genes were sequenced for 167 vestimentiferans collected from the GOM and analyzed in the context of other seep vestimentiferans for which sequence data were available. The analysis supported five monophyletic clades of vestimentiferans in the GOM. Intra-clade variation in both genes was very low, and there was no apparent correlation between the within-clade diversity and collection depth or location. Two of the morphospecies of Lamellibrachia from different depths in the GOM could not be distinguished by either mitochondrial gene. Similarly, E. laminata could not be distinguished from other described species of Escarpia from either the west coast of Africa or the eastern Pacific using COI. We suggest that the mitochondrial COI and 16S genes have little utility as barcoding markers for seep vestimentiferan tubeworms.
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Stable carbon and nitrogen isotope compositions of hydrocarbon-seep bivalves on the Gulf of Mexico lower continental slope - Becker, E L; Lee, R W; Macko, S A; Faure, B M; Fisher, C R (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2010)
Stable isotope compositions of cold-seep bivalves can illuminate processes that affect the chemical and isotopic compositions of seeping fluids along the continental slope of the Gulf of Mexico as well as provide insight into the physiological ecology of these species. Carbon and nitrogen isotope compositions were analyzed in mussels and clams from 14 seep sites spanning a depth range of 1000 to 2800 m along the lower Louisiana slope of the Gulf of Mexico. Mussels of three species found on the lower slope, Bathymodiolus childressi, B. brooksi, and B. heckerae, showed site-specific differences in tissue $δ$13C, reflecting differences in the local methane pool. Mussels from sites on the lower slope sitting atop the contiguous salt sheet generally had tissue $δ$13C values that reflected a stronger biogenic methane signal (−70.8 to −58.8‰) than mussels on the upper slope or seaward of the Sigsbee Escarpment (−67.3 to −40.4‰). Clams (Calyptogena ponderosa and Calyptogena sp. nov.) had a narrow range of $δ$13C values between −37.0 and −34.4‰, indicating that their thiotrophic symbionts are fixing primarily seawater-dissolved organic carbon. The most depleted tissue $δ$15N values yet published for both mussels and clams are reported in this study at −23.7 and −9.2‰, respectively. These depleted values have implications for the assimilation of inorganic nitrogen by these symbioses and the concentrations of particular inorganic nitrogen sources in the local environment.
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Stable isotope trophic patterns in echinoderm megafauna in close proximity to and remote from Gulf of Mexico lower slope hydrocarbon seeps - Carney, R S (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2010)
Hydrocarbon-seep communities in the Gulf of Mexico have a high biomass that is exploited as a food source to varying degrees by the photosynthesis-dependent fauna inhabiting the surrounding mud bottom. A decline concurrent with ocean depth in detritus influx to that background habitat results in a much lower background biomass. The biomass contrast between population-rich seeps and depauperate mud bottom leads to the prediction that seep utilization by the background fauna should be extensive at all depths and should increase with depth. Species depth zonation makes like-species comparisons over the full depth of the Gulf of Mexico impossible. Seeps and normal bottom above 1000 m have different fauna from those below 1000 m. Lower slope seeps are surrounded by a fauna rich in echinoderm species, especially asteroids, ophiuroids, and holothuroids. All three taxa have species that are abundant within seeps and are probably endemic to them. They also contain species found only in mud background or within mud and seeps backgrounds. Tissue analyses of $δ$13C and $δ$15N of echinoderms collected by ROV within seeps and trawling away from seeps indicate a pattern of utilization similar to that found in upper slope seeps exploited by different taxa. Seastar and ophiuroid species abundant in or endemic to seeps have tissue isotope values reflecting seep chemosynthetic input via a free-living microbial detritus or predation. A single seep-endemic deposit-feeding holothuroid showed distinct seep tissue values. Background deposit-feeding holothuroids collected within seeps showed either no or only minor incorporation of seep carbon, indicating either a lack of access to seep detritus or short feeding times within the seep. A predicted extensive utilization of seep productivity at the deeper seeps was not found. Seeps may be relatively closed systems that require special adaptations of species in order for them to enter, exploit, and survive. Alternately, the surrounding deep benthos may not be as food-poor as assumed from biomass measurements and flux estimates.
Keywords: ROV Jason (Remotely Operated Vehicle)

Subseafloor seawater-basalt-microbe reactions: Continuous sampling of borehole fluids in a ridge flank environment - Wheat, C Geoffrey; Jannasch, Hans W; Fisher, Andrew T; Becker, Keir; Sharkey, Jessica; Hulme, Samuel (GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2010)
Integrated Ocean Drilling Program (IODP) Hole 1301A was drilled, cased, and instrumented with a long-term, subseafloor observatory (CORK) on the eastern flank of the Juan de Fuca Ridge in summer 2004. This borehole is located 1 km south of ODP Hole 1026B and 5 km north of Baby Bare outcrop. Hole 1301A penetrates 262 m of sediment and 108 m of the uppermost 3.5 Ma basaltic basement in an area of warm (64 degrees C) hydrothermal circulation. The borehole was instrumented, and those instruments were recovered 4 years later. Here we report chemical data from two continuous fluid samplers (OsmoSamplers) and temperature recording tools that monitored changes in the state of borehole (formation) fluids. These changes document the effects of drilling, fluid overpressure and flow, seawater-basalt interactions, and microbial metababolic activity. Initially, bottom seawater flowed into the borehole through a leak between concentric CORK casing strings. Eventually, the direction of flow reversed, and warm, altered formation fluid flowed into the borehole and discharged at the seafloor. This reversal occurred during 1 week in September 2007, 3 years after drilling operations ceased. The composition of the formation fluid around Hole 1301A generally lies within bounds defined by springs on Baby Bare outcrop (to the south) and fluids that discharged from Hole 1026B (to the north); deviations likely result from reactions with drilling products. Simple conservative mixing of two end-member fluids reveals reactions occurring within the crust, including nitrate reduction presumably by denitrifying microbes. The observed changes in borehole fluid composition provide the foundation for a conceptual model of chemical and microbial change during recharge of a warm ridge-flank hydrothermal system. This model can be tested through future scientific ocean drilling experiments.
Keywords: HOV Alvin (Human Occupied Vehicle)

Syn-eruptive degassing of a single submarine lava flow : constraints on MORB CO2 variability, vesiculation, and eruption dynamics - Nakata, D S (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2010)
Mid-ocean ridge basalts (MORBs) exhibit a wide range of CO2 concentrations, reflecting saturation to supersaturation (and rarely undersaturation) relative to their emplacement depths. In this study, we explore the mechanisms of CO2 degassing and the implications this has for estimating the advance rates and durations of seafloor eruptions. We present dissolved volatile concentrations (mainly of CO2 and H2O) and vesicle size distributions (VSDs) for a unique suite of MORB glasses collected at the East Pacific Rise, {\~{}}9° 50′ N. These MORB glasses were collected at {\~{}}200 m intervals along an across-axis track over a single flow pathway within the recently emplaced 2005-06 eruption boundaries; systematic sample collection provides one of the first opportunities to characterize intra-flow geochemical and physical evolution during a single eruption at a fast-spreading ridge. Compared to measurements of MORB volatiles globally, dissolved H2O concentrations are relatively uniform (0.10 - 0.16 weight percent), whereas dissolved CO2 contents exhibit a range of concentrations (154 - 278 ppm) and decrease with distance from the EPR axis (i.e., eruptive vent). Ion microprobe analyses of dissolved volatiles within the MORB glasses suggest that the magma erupted supersaturated (pressure equilibrium with 920 - 1224 mbsf) and in near-equilibrium with the melt lens of the axial magma chamber ({\~{}}1250 - 1500 mbsf), and degassed to near equilibrium (299 - 447 mbsf) with seafloor depths over the length of the flow. The decrease in CO2 concentrations spans nearly the full range of dissolved CO2 contents observed at the EPR and shows that the varying degrees of volatile saturation that have been observed in other MORB sample suites may be explained by degassing during emplacement. Vesicularity (0.1 - 1.2{%}) increases with decreasing dissolved CO2 concentrations. We use vesicle size distributions (VSDs)—vesicle sizes and number densities—to quantify the physical evolution of the CO2 degassing process. VSDs suggest that diffusion of CO2 into preexisting vesicles, and not nucleation of new vesicles, is the dominant mechanism of increasing CO2 in the vapor phase. We also use VSDs, along with estimates of vesicle growth rates, to constrain emplacement time of the 2005-06 eruption to {<}{\~{}}24 hours and to resolve variations in advance rate with downflow distance.
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Temperature effects on the calcite skeletal composition of deep-water gorgonians (isididae) - Thresher, R E; Wilson, N C; MacRae, C M; Neil, H (Geochimica et Cosmochimica Acta, 2010)
We test for and calibrate a proxy for ocean temperature based on the skeletal composition of the widely distributed, deep-sea gorgonians in the family Isididae (bamboo corals), through use of three complementary methods: a short-term comparison of element/Ca ratios to a four-year temperature record, a long-term comparison with oceanographic records spanning forty years, and a geographic comparison of Isidids collected at sites ranging from the tropics to Antarctica. The assays consistently support a temperature-dependency for Mg/Ca ratios and suggest S/Ca is indirectly affected by temperature, but indicate little or no effect of temperature on P/Ca and Sr/Ca. The consensus relationship between Mg/Ca and temperature for Isidid calcite from the comparisons with the temperature time-series is T = −0.505 + 0.048 Mg/Ca, where T is in °C, Mg/Ca is in mmol/mol, and the applicable range is 3–6 °C. The results of the geographic assay, though imprecise, suggest the applicable range extends to temperatures below freezing. The scatter of data points around the regression of temperature and Mg/Ca is wide in all assays. This could reflect the effect of factors other than temperature on Mg/Ca ratios, but is also likely to reflect limitations of the field data, the effects of assumed constant growth rates in the corals and instrumental analytical error. The combined effects of micro-scale variability in growth rates and wide confidence intervals for each data point suggests that environmental reconstruction from Isidid internode calcite from sparse data or at time scales less than decades be done with caution. Comparisons within and among colonies do not indicate strong vital effects on ontogenetic variability in the corals, other than possibly close to the central pore of the coral. However, similar Mg/Ca ratios for Isidids from Antarctic and more temperate regions suggest adaptation to local conditions and hence a role for physiology at higher taxonomic levels, at least. Taxonomically higher level vital effects are also suggested by large differences between gorgonian families in their regressions between Mg/Ca and temperature, by Mg/Ca ratios that overlap over a wide temperature and habitat range, and for a non-linear relationship between temperature and the slope of the Mg/Ca-temperature relationship across the order.
Keywords: ROV Jason (Remotely Operated Vehicle)

Temporal and petrogenetic constraints on volcanic accretionary processes at 9-10 degrees north East Pacific Rise - Waters, C L (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2010)
Volcanic accretion at the fast-spreading East Pacific Rise (EPR) occurs over a {\~{}}2-4 km wide neo-volcanic zone on either side of the axial summit trough (AST). Eruption ages are critical for understanding the distribution and timing of volcanic and magmatic activity. Uranium series nuclides are susceptible to fractionation by magmatic processes that occur beneath mid-ocean ridges, and the half-lives of 226Ra (1.6 kyrs) and 230Th (75 kyrs) make them ideally suited for determining eruption ages and placing constraints on eruption frequency and temporal changes in magma chemistry. Accordingly, major and trace element, and long-lived radiogenic and 238U-230Th-226Ra isotope compositions were measured in basalts from 9º-10ºN EPR to determine eruption ages and to place temporal constraints on volcanic and magmatic processes. At 9º30'N EPR, 238U-230Th-226Ra compositions indicate that trace elementally and isotopically enriched mid-ocean ridge basalt (MORB) collected off-axis erupted {>}8 ka and that E-MORB magmatism is interspersed with normal, depleted MORB magmatism. Lava ages are consistent with eruption from the AST and flow down the ridge flanks, which is in contrast to previous studies that suggested E-MORB erupted from off-axis vents. At 9º50'N EPR, discrete eruptive units are distinguished by high precision 238U, 232Th, and 226Ra sample concentrations, but because the resolution of the 230Th-226Ra model age dating technique is {\~{}}±1 kyrs, the surprisingly young ages of these lavas prohibit the construction of an explicit, time-constrained lava stratigraphy. Nonetheless, seven different flows identified within 0.8-2.0 km west of the AST imply greater frequency of flows to these distances than previously recognized. Model age dating of ferrobasalts, basaltic andesites, andesites, and dacites sampled from the east limb of the overlapping spreading center at 9º03'N EPR is difficult due to uncertainties in magma residence times. However, (226Ra/230Th) disequilibria indicate recent basaltic volcanism ({<}{<}8 ka) up to {\~{}}4 km off-axis. The axial graben at the rise crest sources the most recent volcanic activity and is the dominant location for eruption of high-silica magmas. Major element, trace element, 87Sr/86Sr, and (234U/238U) isotope compositions are consistent with the formation of dacite magmas by extensive crystallization, and 238U-230Th-226Ra systematics imply crustal residence times of {\~{}}8 kyrs.
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle); ROV DSL-120 (Remotely Operated Vehicle); ROV Jason (Remotely Operated Vehicle)

Thermally stimulated ``runaway\''\} downhole flow in a superhydrostatic ocean crustal borehole: Observations, simulations, and inferences regarding crustal permeability} - Davis, Earl E; LaBonte, Alison; He, Jiangheng; Becker, Keir; Fisher, Andrew (JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2010)
An array of boreholes, drilled through a regionally continuous hydrologically confining layer of sediments into extrusive igneous basement rocks of the Juan de Fuca Ridge eastern flank, has been instrumented with CORK hydrologic observatories for long-term monitoring and fluid sampling. Omission of seals between nested casing strings reaching into basement at one site created a low-resistance connection between basement and the overlying water column, and despite the natural superhydrostatic state of basement water at that location, a ``runaway{\{}''{\}} condition of cold seawater downhole flow into the crust was established, which persisted for more than 4 years. The existence of this condition, along with perturbations generated by it and by initial drilling operations observed at a properly sealed hole 2.4 km away, have been used with analytic and finite element model solutions to constrain formation permeability. The minimum threshold permeability allowing stable downhole flow is roughly 4 x 10(-13) m(2). A value of permeability similar to this (3-4 x 10(-13) m(2)) is estimated on the basis of the elapsed time for initial perturbations to propagate between the sites (similar to 2.5 days). The amplitude of the long-term flow perturbation observed at the sealed site (roughly 1.7 kPa) is smaller than that predicted by modeling (5-10 kPa). Models for flow in an anisotropically permeable layer show that this could be the consequence of low vertical permeability (e. g., arising from massive volcanic or sediment interlayering) or high permeability in the direction of the tectonic fabric generated at the ridge axis. Disagreement between the permeabilities estimated here with previous large-scale estimates appropriate for the cross-strike direction (the primary direction between the borehole sites) (10(-10)-10(-9) m(2)) is difficult to reconcile; it is possible that the holes are poorly connected to zones of high permeability that facilitate the large lateral fluid and heat fluxes previously inferred at this young crustal site.
Keywords: HOV Alvin (Human Occupied Vehicle)

Vacuolate-attached filaments: highly productive Ridgeia piscesae epibionts at the Juan de Fuca hydrothermal vents - Kalanetra, Karen M; Nelson, Douglas C (MARINE BIOLOGY, 2010)
Vacuolate sulfur bacteria with high morphological similarity to vacuolate-attached filaments previously described from shallow hydrothermal vents (White Point, CA) were found at deep-sea hydrothermal vents. These filamentous bacteria grow in dense mats that cover surfaces and potentially provide a significant source of organic carbon where they occur. Vacuolate-attached filaments were collected near vents at the Clam Bed site of the Endeavour Segment of the Juan de Fuca Ridge and from the sediment surface at Escanaba Trough on the Gorda Ridge. A phylogenetic analysis comparing their 16S rRNA gene sequences to those collected from the shallow White Point site showed that all vacuolate-attached filament sequences form a monophyletic group within the vacuolate sulfur-oxidizing bacteria clade in the gamma proteobacteria. Abundance of the attached filaments was quantified over the length of the exterior surface of the tubes of Ridgeia piscesae worms collected from the Clam Bed site at Juan de Fuca yielding a per worm average of 0.070 +/- A 0.018 cm(3) (n = 4). In agreement with previous results for White Point filaments, anion measurements by ion chromatography showed no detectable internal nitrate concentrations above ambient seawater (n = 9). For one R. piscesae tube worm ``bush{\{}''{\}} at the Easter Island vent site, potential gross epibiont productivity is estimated to be 15 to 45x the net productivity of the worms.
Keywords: HOV Alvin (Human Occupied Vehicle)

Abundances of hyperthermophilic autotrophic Fe(III) oxide reducers and heterotrophs in deep-sea hydrothermal sulfide chimneys of the northeastern Pacific Ocean. - Ver Eecke, H C; Kelley, D S; Holden, J F (Applied and Environmental Microbiology, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Adaptation of chemosynthetic microorganisms to elevated mercury concentrations in deep-sea hydrothermal vents - Crespo-Medina, M; Chatziefthimiou, A D; Bloom, N S; Luther, G W; Wright, D D; Reinfelder, J R; Vetriani, C; Barkay, T (Limnology and Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Another league under the sea: tomorrow's research subs open earth's final frontier - Streep, A (Popular Science, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

AUV design: shape, drag and practical issues - Stevenson, P; Furlong, M; Dormer, D (Sea Technology, 2009)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Biogenic iron oxyhydroxide formation at mid-ocean ridge hydrothermal vents: Juan de Fuca Ridge - Toner, B M; Santelli, C M; Marcus, M A; Wirth, R; Chan, C S; McCollom, T; Bach, W; Edwards, K J (Geochimica et Cosmochimica Acta, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Biotic and abiotic interactions of deep-sea hydrothermal vent-endemic fish on the East Pacific Rise - Buckman, K L (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Carbon and oxygen isotope geochemistry of live (stained) benthic foraminifera from the Aleutian Margin and the Southern Australian Margin - Basak, C; Rathburn, A E; Perez, M E; Martin, J B; Kluesner, J W; Levin, L A; De Deckker, P; Gieskes, J M; Abriani, M (Marine Micropaleontology, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Comparative phylogeography among hydrothermal vent species along the East Pacific Rise reveals vicariant processes and population expansion in the South - Plouviez, S; Shank, T M; Faure, B; Daguin-Thiebaut, C; Viard, F; Lallier, F H; Jollivet, D (Molecular Ecology, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Comparison of a sediment trap and plankton pump for time-series sampling of larvae near deep-sea hydrothermal vents - Beaulieu, S E; Mullineaux, L S; Adams, D K; Mills, S W (Limnology and Oceanography: Methods, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Cooperative localization for autonomous underwater vehicles - Bahr, A (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2009)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Coral reef evolution on rapidly subsiding margins - Webster, J M; Braga, J C; Clague, D A; Gallup, C; Hein, J R; Potts, D C; Renema, W; Riding, R; Riker-Coleman, K; Silver, E A; Wallace, L M (Global and Planetary Change, 2009)
Keywords: ROV DSL-120 (Remotely Operated Vehicle)

Development of assemblages associated with alvinellid colonies on the walls of high-temperature vents at the East Pacific Rise - Pradillon, F; Zbinden, M; Le Bris, N; Hourdez, S; Barnay, A S; Gaill, F (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Diking, young volcanism and diffuse hydrothermal activity on the southern Mid-Atlantic Ridge: The Lilliput field at 9 degrees 33′S - Haase, K M; Koschinsky, A; Petersen, S; Devey, C W; German, C R; Lackschewitz, K S; Melchert, B; Seifert, R; Borowski, C; Giere, O; Paulick, H (Marine Geology, 2009)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Discovery of the depths: the world's oceans have been almost impenetrable to human exploration because of obstacles associated with underwater exploration–until the very recent development of remote underwater vehicles - Katsioloudis, P J (Technology Teacher, 2009)
Keywords: AUV ABE (Autonomous Benthic Explorer); ROV Jason (Remotely Operated Vehicle)

Distribution of diffuse flow megafauna in two sites on the Eastern Lau Spreading Center, Tonga - Podowski, E L; Moore, T S; Zelnio, K A; Luther, G W; Fisher, C R (Deep-Sea Research. Part I: Oceanographic Research Papers, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

A dual sensor device to estimate fluid flow velocity at diffuse hydrothermal vents - Sarrazin, J; Rodier, P; Tivey, M K; Singh, H; Schultz, A; Sarradin, P -M (Deep-Sea Research. Part I: Oceanographic Research Papers, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Exploring the utility of an indel-rich, mitochondrial intergenic region as a molecular barcode for bamboo corals (Octocorallia: Isididae) - van der Ham, J L; Brugler, M R; France, S C (Marine Genomics, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Extraordinary C-13 enrichment of diether lipids at the Lost City Hydrothermal Field indicates a carbon-limited ecosystem - Bradley, A S (Geochimica et Cosmochimica Acta, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Geological and biological heterogeneity of the Aleutian Margin (1965–4822 m) - Rathburn, A E; Levin, L A; Tryon, M D; Gieskes, J M; Martin, J B; Perez, M E; Fodrie, F J; Neira, C; Fryer, G L; Mendoza, G F; McMillan, P A; Kluesner, J; et al. (Progress In Oceanography, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

The geological setting of the ultramafic-hosted Logatchev hydrothermal field (14 degrees 45′N, Mid-Atlantic Ridge) and its influence on massive sulfide formation - Petersen, S; Kuhn, K; Kuhn, T; Augustin, N; Hekinian, R; Franz, L; Borowski, C (Lithos, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Geophysical signatures of oceanic core complexes - Blackman, D K; Canales, J P; Harding, A (Geophysical Journal International, 2009)
P{>}Oceanic core complexes (OCCs) provide access to intrusive and ultramafic sections of young lithosphere and their structure and evolution contain clues about how the balance between magmatism and faulting controls the style of rifting that may dominate in a portion of a spreading centre for Myr timescales. Initial models of the development of OCCs depended strongly on insights available from continental core complexes and from seafloor mapping. While these frameworks have been useful in guiding a broader scope of studies and determining the extent of OCC formation along slow spreading ridges, as we summarize herein, results from the past decade highlight the need to reassess the hypothesis that reduced magma supply is a driver of long-lived detachment faulting. The aim of this paper is to review the available geophysical constraints on OCC structure and to look at what aspects of current models are constrained or required by the data. We consider sonar data (morphology and backscatter), gravity, magnetics, borehole geophysics and seismic reflection. Additional emphasis is placed on seismic velocity results (refraction) since this is where deviations from normal crustal accretion should be most readily quantified. However, as with gravity and magnetic studies at OCCs, ambiguities are inherent in seismic interpretation, including within some processing/analysis steps. We briefly discuss some of these issues for each data type. Progress in understanding the shallow structure of OCCs (within similar to 1 km of the seafloor) is considerable. Firm constraints on deeper structure, particularly characterization of the transition from dominantly mafic rock (and/or altered ultramafic rock) to dominantly fresh mantle peridotite, are not currently in hand. There is limited information on the structure and composition of the conjugate lithosphere accreted to the opposite plate while an OCC forms, commonly on the inside corner of a ridge-offset intersection. These gaps preclude full testing of current models. However, with the data in hand there are systematic patterns in OCC structure, such as the 1-2 Myr duration of this rifting style within a given ridge segment, the height of the domal cores with respect to surrounding seafloor, the correspondence of gravity highs with OCCs, and the persistence of corrugations that mark relative (palaeo) slip along the exposed detachment capping the domal cores. This compilation of geophysical results at OCCs should be useful to investigators new to the topic but we also target advanced researchers in our presentation and synthesis of findings to date.
Keywords: ROV DSL-120 (Remotely Operated Vehicle)

Human exploration of the deep seas: fifty years and the inspiration continues - Kohnen, W (Marine Technology Society Journal, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Importance of seep primary production to Lophelia pertusa and associated fauna in the Gulf of Mexico - Becker, E L; Cordes, E E; Macko, S A; Fisher, C R (Deep-Sea Research. Part I: Oceanographic Research Papers, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Imprint of past environmental regimes on structure and succession of a deep-sea hydrothermal vent community - Mullineaux, L S; Micheli, F; Peterson, C H; Lenihan, H S; Markus, N (Oecologia, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Jason encounters the carnivorous sea squirt - Nevala, A E; Lippsett, L (Oceanus, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Laser Raman spectroscopy as a technique for identification of seafloor hydrothermal and cold seep minerals - White, S N (Chemical Geology, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Long-term hydrogeochemical records in the oceanic basement and forearc prism at the Costa Rica subduction zone - Solomon, E A; Kastner, M; Wheat, C G; Jannasch, H W; Robertson, G; Davis, E E; Morris, J D (Earth and Planetary Science Letters, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Macro-Ecology of Gulf of Mexico Cold Seeps - Cordes, E E; Bergquist, D C; Fisher, C R (Annual Review of Marine Science, 2009)

Marine genetic resources:A review of scientific and commercial interest - Leary, D; Vierros, M; Hamon, G; Arico, S; Monagle, C (Marine Policy, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Mass-dependent cadmium isotopic variations in nature with emphasis on the marine environment - Schmitt, A -D; Galer, S J G; Abouchami, W (Earth and Planetary Science Letters, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Mercury isotopic composition of hydrothermal systems in the Yellowstone Plateau volcanic field and Guaymas Basin sea-floor rift - Sherman, L S; Blum, J D; Nordstrom, D K; McCleskey, R B; Barkay, T; Vetriani, C (Earth and Planetary Science Letters, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Metal sources of black smoker chimneys, Endeavour Segment, Juan de Fuca Ridge: Pb isotope constraints - Yao, H Q; Zhou, H Y; Peng, X T; Bao, S X; Wu, Z J; Li, J T; Sun, Z L; Chen, Z Q; Li, J W; Chen, G Q (Applied Geochemistry, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

The N456 Navigator system - Abrams, L J (WHOI technical reports, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

A new deep-sea robot call Sentry complete first mission - Nevala, A E; Lippsett, L (Oceanus, 2009)
Keywords: AUV Sentry (Autonomous Underwater Vehicle)

NSF looks ahead with basic ocean research - Killeen, T; Morris, J D (Sea Technology, 2009)
Keywords: AUV Sentry (Autonomous Underwater Vehicle)

Occurrence of gas hydrate in Oligocene Frio sand: Alaminos Canyon Block 818: northern Gulf of Mexico - Boswell, R; Shelander, D; Lee, M; Latham, T; Collett, T; Geurin, G; Moridis, G; Reagan, M; Goldberg, D (Marine and Petroleum Geology, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Oceanic core complexes and ancient oceanic lithosphere: Insights from Iapetan and Tethyan ophiolites (Canada and Albania) - Tremblay, A; Meshi, A; Bédard, J H (Tectonophysics, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Argo (Remotely Operated Vehicle)

Paleodictyon nodosum: a living fossil on the deep sea floor - Rona, P A; Seilacher, A; de Vargas, C; Gooday, A J; Bernhard, J M; Bowser, S; Vetriani, C; Wirsen, C O; Mullineaux, L; Sherrell, R; Grassle, J F; Low, S; et al. (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

A parallel hypothesis method of autonomous underwater vehicle navigation - LaPointe, C E G (Massachusetts Institutte of Technology and Woods Hole Oceanographic Institution, 2009)
Keywords: AUV ABE (Autonomous Benthic Explorer); AUV Sentry (Autonomous Underwater Vehicle)

Photographic identification guide to larvae at hydrothermal vents - Mills, S W; Beaulieu, S E; Mullineaux, L S (WHOI technical reports, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Phylogenetic diversity of methanogenic, sulfate-reducing and methanotrophic prokaryotes from deep-sea hydrothermal vents and cold seeps - Reed, A J; Dorn, Ruth; Van Dover, C L; Lutz, R A; Vetriani, C (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Microbial communities of methanogenic, sulfate-reducing and methanotrophic prokaryotes from deep-sea environments were investigated by molecular phylogenetic analysis of the deduced amino acid sequences of the genes encoding for the methyl coenzyme M reductase (mcrA), dissimilatory sulfite reductase (dsrAB) and particulate methane monoxygenase (pmoA), respectively. Clone libraries of PCR amplified genes were constructed using DNA extracted from deep-sea vent chimneys (Rainbow and Logatchev hydrothermal vent fields, Mid-Atlantic Ridge, Atlantic Ocean; 9 degrees N East Pacific Rise, Pacific Ocean) and from vertically subsampled sediment cores from cold-seep areas (Blake Ridge, western Atlantic Ocean; Florida Escarpment, Gulf of Mexico). Recombinant clones were screened by RFLP and representative dsrAB, mcrA and pmoA genes were sequenced. The dsrAB sequences grouped primarily within the orders Desulfobacterales, Syntrophobacterales and the Gram-positive order Clostridales. Cold-seep mcrA sequences were distributed among the ANME-2c, -2d and -2e groups, which were previously shown to be associated with the anaerobic oxidation of methane. This study also reports the first mcrA sequences from a high-temperature, black smoker chimney (Logatchev) to group within the ANME-2e subgroup. The majority of the remaining hydrothermal vent mcrA sequences were primarily related to thermophilic members of the anaerobic, methanogenic order Methanococcales. A shift in the dominant ANME-2 group with depth in the sediment for both Florida Escarpment and Blake Ridge mcrA libraries was detected. ANME-2d related clones were detected in the top zones of both cores, with the frequency of ANME-2e related clones increasing with depth. All pmoA sequences retrieved from the cold-seep sites were found to be related to Type I methanotrophic members of the gamma-proteobacteria, and were primarily distributed among three major clusters of sequences. No Type II pmoA sequences related to methanotrophic members of the alpha-proteobacteria were detected, suggesting that the methanotrophic communities in these cold-seep areas are dominated by Type I gamma-proteobacteria. (C) 2009 Elsevier Ltd. All rights reserved.
Keywords: HOV Alvin (Human Occupied Vehicle)

Pre- and post-eruption diffuse flow variability among tubeworm habitats at 9 degrees 50′ north on the East Pacific Rise - Nees, H A; Lutz, R A; Shank, T M; Luther, G W (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Protandric hermaphroditism in the whale-fall bivalve mollusc Idas washingtonia - Tyler, P A; Marsh, L; Baco-Taylor, A; Smith, C R (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Recent volcanic events and the distribution of hydrothermal venting at the Lucky Strike hydrothermal field, Mid-Atlantic Ridge - Ondreas, H; Cannat, M; Fouquet, Y; Normand, A; Sarradin, P -M; Sarrazin, J (Geochemistry, Geophysics, Geosystems, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Redox speciation and distribution within diverse iron-dominated microbial habitats at Loihi Seamount - Glazer, B T; Rouxel, O J (Geomicrobiology Journal, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Significance of widespread low effusion rate eruptions over the past two million years for delivery of magma to the overlapping spreading centers at 9 degrees N East Pacific Rise - White, S M; Mason, J L; Macdonald, K C; Perfit, M R; Wanless, V D; Klein, E M (Earth and Planetary Science Letters, 2009)
Keywords: ROV DSL-120 (Remotely Operated Vehicle); ROV Jason (Remotely Operated Vehicle)

Stable carbon and nitrogen isotopic signatures of fauna associated to the deep-sea hydrothermal vent system of Guaymas Basin, Gulf of California - Soto, L A (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Structural diversity of diether lipids in carbonate chimneys at the Lost City Hydrothermal Field - Bradley, A S; Fredricks, H; Hinrichs, K -U; Summons, R E (Organic Geochemistry, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Submarine sounds - Helmreich, S (Wire, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Superoxide dismutase from the eukaryotic thermophile Alvinella pompejana: Structures, stability, mechanism, and insights into amyotrophic lateral sclerosis - Shin, D S; DiDonato, M; Barondeau, D P; Hura, G L; Hitomi, C; Berglund, J A; Getzoff, E D; Cary, S C; Tainer, J A (Journal of Molecular Biology, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Survival of mussels in extremely acidic waters on a submarine volcano - Tunnicliffe, V; Davies, K T A; Butterfield, D A; Embley, R W; Rose, J M; Chadwick, W W (Nature Geoscience, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

A suspended-particle rosette multi-sampler for discrete biogeochemical sampling in low-particle-density waters - Breier, J A; Rauch, C G; McCartney, K; Toner, B M; Fakra, S C; White, S N; German, C R (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Time-series chemical and temperature habitat characterization of diffuse flow hydrothermal sites at 9 degrees 50′N East Pacific Rise - Moore, T S; Shank, T M; Nuzzio, D B; Luther, G W (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Variable buoyancy system metric - Jensen, H F (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Volcanic inflation measured in the caldera of Axial Seamount: Implications for magma supply and future eruptions - Nooner, S L; Chadwick, W W (Geochemistry, Geophysics, Geosystems, 2009)
Keywords: ROV Jason (Remotely Operated Vehicle)

Where do the embryos of Riftia pachyptila develop? Pressure tolerances, temperature tolerances, and buoyancy during prolonged embryonic dispersal - Brooke, S D; Young, C M (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle)

Widespread strombolian eruptions of mid-ocean ridge basalt - Clague, D A; Paduan, J B; Davis, A S (Journal of Volcanology and Geothermal Research, 2009)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Absence of cospeciation between deep-sea mytilids and their thiotrophic endosymbionts - Won, Y -J; Jones, W J; Vrijenhoek, R C (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Benthic Foraminifera of the Blake Ridge hydrate mound, Western North Atlantic Ocean - Panieri, G; Sen Gupta, B K (Marine Micropaleontology, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Biology of the vent crab Bythograea thermydron: A brief review - DitteL, A I; Perovich, G; Epifanio, C E (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Biotic interactions at hydrothermal vents: Recruitment inhibition by the mussel Bathymodiolus thermophilus - Lenihan, H S; Mills, S W; Mullineaux, L S; Peterson, C H; Fisher, C R; Micheli, F (Deep-Sea Research. Part I: Oceanographic Research Papers, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Borehole observations of fluid flow from South Chamorro Seamount, an active serpentinite mud volcano in the Mariana forearc - Wheat, C G; Fryer, P; Fisher, A T; Hulme, S; Jannasch, H W; Mottl, M J (Earth and Planetary Science Letters, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Carbon geochemistry of serpentinites in the Lost City Hydrothermal System (30 degrees N, MAR) - Delacour, A; Fruh-Green, G L; Bernasconi, S M; Schaeffer, P; Kelley, D S (Geochimica et Cosmochimica Acta, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle); ROV Argo (Remotely Operated Vehicle)

The chemistry of diffuse-flow vent fluids on the Galapagos Roft (86 degrees W) : temporal vaiability and subseafloor phase equilibria controls - Pester, N J; Butterfield, D A; Foustoukos, D I; Roe, K K; Ding, K; Shank, T M; Seyfried, W E (Magma to microbe : modeling hydrothermal processes at ocean spreading centers, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Comparative ultrastructure of digestive diverticulae in bathymodiolin mussels: Discovery of an unknown spherical inclusion (SIX) in digestive cells of a seep mussel - Logan, C R; Evans, M T; Ward, M E; Scott, J L; Carnegie, R B; Van Dover, C L (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Coral communities of the deep Gulf of Mexico - Cordes, E E; McGinley, M P; Podowski, E L; Becker, E L; Lessard-Pilon, S; Viada, S T; Fisher, C R (Deep-Sea Research. Part I: Oceanographic Research Papers, 2008)

Culture dependent and independent analyses of 16S rRNA and ATP citrate lyase genes: a comparison of microbial communities from different black smoker chimneys on the Mid-Atlantic Ridge - Voordeckers, J W; Do, M H; Hugler, M; Ko, V; Sievert, S M; Vetriani, C (Extremophiles, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Development and characterization of 12 microsatellite markers from the deep-sea hydrothermal vent siboglinid Riftia pachyptila - Fusaro, A J; Baco, A R; Gerlach, G; Shank, T M (Molecular Ecology Resources, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Direct evidence from anisotropy of magnetic susceptibility for lateral melt migration at superfast spreading centers - Varga, R J; Horst, A J; Gee, J S; Karson, J A (Geochemistry, Geophysics, Geosystems, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Direct video and hydrophone observations of submarine explosive eruptions at NW Rota-1 volcano, Mariana arc - Chadwick, W W; Cashman, K V; Embley, R W; Matsumoto, H; Dziak, R P; de Ronde, C E J; Lau, T K; Deardorff, N D; Merle, S G (Journal of Geophysical Research, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Dissolved inorganic carbon isotopic composition of low-temperature axial and ridge-flank hydrothermal fluids of the Juan de Fuca Ridge - Walker, B D; McCarthy, M D; Fisher, A T; Guilderson, T P (Marine Chemistry, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Distribution, habitat use and ecology of deepwater Anemones (Actiniaria) in the Gulf of Mexico - Ammons, A W; Daly, M (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2008)
The distribution of deepwater Actiniaria is poorly known. Rarely are these organisms identified to family, as this requires both well-preserved specimens and taxonomic expertise. Ecological information is similarly lacking. From the results of a comprehensive surveying program in the deep Gulf of Mexico, we report the occurrence of nine species of Actiniaria. For the most abundant four of these, we plot distributions and discuss habitat use, morphological variation, and feeding strategies. Actiniaria in the Gulf appear to have broad, basin-wide distributions with little depth preference. Faunal biomass is highest in the NE Gulf within submarine canyons or at the base of slope escarpments. Attachment mode is mostly opportunistic on various types of hard substrata, including trash. Sediment-dwelling forms are very abundant at an organically rich site within a large submarine canyon.
Keywords: HOV Alvin (Human Occupied Vehicle)

DNA barcoding of Lepetodrilus limpets reveals cryptic species - Johnson, S B; Waren, A; Vrijenhoek, R C (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling - Gregg, P M (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Eruption-fed particle plumes and volcaniclastic deposits at a submarine volcano: NW Rota-1, Mariana Arc - Walker, S L; Baker, E T; Resing, J A; Chadwick, W W; Lebon, G T; Lupton, J E; Merle, S G (Journal of Geophysical Research, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

False boarfish Neocyttus helgae in the Western North Atlantic - Moore, J A; Auster, P J; Calini, D; Heinonen, K; Barber, K; Hecker, B (Bulletin of the Peabody Museum of Natural History, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle)

Faunal biogeography, community structure, and genetic connectivity of North Atlantic seamounts - Cho, W W (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

The Fe/Mn ratio in MORB and OIB determined by ICP-MS - Qin, L; Humayun, M (Geochimica et Cosmochimica Acta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

First evidence for high-temperature off-axis venting of deep crustal/mantle heat: The Nibelungen hydrothermal field, southern Mid-Atlantic Ridge - Melchert, B; Devey, C W; German, C R; Lackschewitz, K S; Seifert, R; Walter, M; Mertens, C; Yoerger, D R; Baker, E T; Paulick, H; Nakamura, K (Earth and Planetary Science Letters, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Formation of Zn- and Fe-sulfides near hydrothermal vents at the Eastern Lau Spreading Center: implications for sulfide bioavailability to chemoautotrophs - Hsu-Kim, H; Mullaugh, K M; Tsang, J J; Yucel, M; Luther, G W (Geochemical Transactions, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Geokhimiya submarinnykh rudoobrazuyushchikh gidroterm severnoy Atlantiki; po dannym distantsionnykh nablyudeniy i oprobovaniya s podvodnykh obitayemykh apparatov. - Sudarikov, S M; Krivitskaya, M V; Kaminskiy, D V (Zapiski Gornogo Instituta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Hydrothermal exploration with the Autonomous Benthic Explorer - German, C R; Yoerger, D R; Jakuba, M V; Shank, T M; Langmuir, C H; Nakamura, K I (Deep-Sea Research. Part I: Oceanographic Research Papers, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer); AUV Sentry (Autonomous Underwater Vehicle); ROV DSL-120 (Remotely Operated Vehicle)

Hydrothermal fluid composition at Middle Valley, northern Juan de Fuca Ridge: temporal and spatial variability - Cruse, A M; Seewald, J S; Saccocia, P J; Zierenberg, R (Magma to microbe : modeling hydrothermal processes at ocean spreading centers, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Hydrothermal vent mussel habitat chemistry, pre- and post-eruption at 9 degrees 50′North on the East Pacific Rise - Nees, H A; Moore, T S; Mullaugh, K M; Holyoke, R R; Janzen, C P; Ma, S; Metzger, E; Waite, T J; Yucel, M; Lutz, R A; Shank, T M; Vetriani, C; et al. (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Argo (Remotely Operated Vehicle)

Integrated Fe- and S-isotope study of seafloor hydrothermal vents at East Pacific Rise 9–10 degrees N - Rouxel, O J; Shanks, W C; Bach, W; Edwards, K J (Chemical Geology, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Interrelationships between vent fluid chemistry, temperature, seismic activity, and biological community structure at a mussel-dominated, deep-sea hydrothermal vent along the East Pacific Rise - Lutz, R A; Shank, T M; Luther, G W; Vetriani, C; Tolstoy, M; Nuzzio, D B; Moore, T S; Waldhauser, F; Crespo-Medina, M; Chatziefthimiou, A D; Annis, E R; Reed, A J (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Investigations of chemosynthetic communities on the lower continental slope of the Gulf of Mexico: Interim Report 1 - Brooks, J M; Fisher, C R; Roberts, H; Bernard, B; MacDonald, I R; Carney, R; Jove, S; Cordes, E E; Wolff, G A; Goehring, E (OCS Reports, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Isotopic and element exchange during serpentinization and metasomatism at the Atlantis Massif (MAR 30 degrees N): Insights from B and Sr isotope data - Boschi, C; Dini, A; Fruh-Green, G L; Kelley, D S (Geochimica et Cosmochimica Acta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Large, motile epifauna interact strongly with harpacticoid copepods and polychaetes at a bathyal site - Thistle, D; Eckman, J E; Paterson, G L J (Deep-Sea Research. Part I: Oceanographic Research Papers, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Lipid, sterols and fatty acid composition of abyssal holothurians and ophiuroids from the North-East Pacific Ocean: Food web implications - Drazen, J C; Phleger, C F; Guest, M A; Nichols, P D (Comparative Biochemistry and Physiology B-Biochemistry {&} Molecular Biology, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Lockheed Martin designs new scientific research mini-sub (Ocean News {&} Technology, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Metabolic rates and thermal tolerances of chemoautotrophic symbioses from Lau Basin hydrothermal vents and their implications for species distributions - Henry, M S; Childress, J J; Figueroa, D (Deep-Sea Research. Part I: Oceanographic Research Papers, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Microbial ammonia oxidation and enhanced nitrogen cycling in the Endeavour hydrothermal plume - Lam, P; Cowen, J P; Popp, B N; Jones, R D (Geochimica et Cosmochimica Acta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Modification of sediment geochemistry by the hydrocarbon seep tubeworm Lamellibrachia luymesi: A combined empirical and modeling approach - Dattagupta, S; Arthur, M A; Fisher, C R (Geochimica et Cosmochimica Acta, 2008)

The morphology of bacterial symbioses in the gills of mussels of the Genera Adipicola and Idas (Bivalvia: Mytilidae) - Southward, E C (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Observations of deep-sea octopodid behavior from undersea vehicles. For the Symposium 'Cephalopods: A behavioral perspective' volume - Voight, J R (American Malacological Bulletin, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Platforms: autonomous underwater vehicles - Bellingham, J G (Encyclopedia of ocean sciences, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Reproduction of gastropods from vents on the East Pacific Rise and the Mid-Atlantic Ridge - Tyler, P A; Pendlebury, S; Mills, S W; Mullineaux, L S; Eckelbarger, K J; Baker, M; Young, C M (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Spatial and temporal population genetics at deep-sea hydrothermal vents along the east Pacific Rise and Galapagos Rift - Fusaro, A J (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Sr- and Nd-isotope geochemistry of the Atlantis Massif (30 degress N, MAR): Implications for fluid fluxes and lithospheric heterogeneity - Delacour, A; Fruh-Green, G L; Frank, M; Gutjahr, M; Kelley, D S (Chemical Geology, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle); ROV Argo (Remotely Operated Vehicle)

Stable isotopic evidence in support of active microbial methane cycling in low-temperature diffuse flow vents at 9 degrees 50'N East Pacific Rise - Proskurowski, G; Lilley, M D; Olson, E J (Geochimica et Cosmochimica Acta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Sulfur in peridotites and gabbros at Lost City (30 degrees N, MAR): Implications for hydrothermal alteration and microbial activity during serpentinization - Delacour, A; Fruh-Green, G L; Bernasconi, S M; Kelley, D S (Geochimica et Cosmochimica Acta, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Supply of gastropod larvae to hydrothermal vents reflects transport from local larval sources - Adams, D K; Mullineaux, L S (Limnology and Oceanography, 2008)
Variation in larval supply to disjunct marine populations can provide insight into larval transport and delivery mechanisms, especially when compared with observations of physical transport. Daily variability in larval supply at two mussel-dominated hydrothermal vents, East Wall and Choo Choo, near 9º50'N, East Pacific Rise, was quantified concurrently with hydrodynamic observations to investigate local dispersal processes. The magnitude and temporal variation in supply differed between the two vent sites despite their close proximity, 1.6 km. Larval supply was relatively high and uninterrupted at East Wall compared to low and episodic at Choo Choo. Observed variation in larval supply was compared to predictions based on advective transport from larval sources at neighboring vents. Variation in larval supply at Choo Choo correlated with along-axis southward currents, consistent with larval transport from a northern larval source. Larval supply to East Wall appeared to be independent of current velocities, suggesting that larvae came from multiple sources north of and south of and possibly including East Wall. Transport of larvae from discrete local sources can explain differences in larval supply to vent communities, even on spatial scales of kilometers.
Keywords: HOV Alvin (Human Occupied Vehicle)

Taxonomic review of the hydrothermal vent shrimp Genera Rimicaris Williams & Rona and Chorocaris Martin & Hessler (Crustacea: Decapoda: Caridea: Alvinocarididae)} - Komai, T; Segonzac, M (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Three new species of the family Neolepetopsidae (Patellogastropoda) from hydrothermal vents and whale falls in the Northeastern Pacific - McLean, J H (Journal of Shellfish Research, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Use of voltammetric solid-state (micro)electrodes for studying biogeochemical processes: Laboratory measurements to real time measurements with an in situ electrochemical analyzer (ISEA) - Luther, G W; Glazer, B T; Ma, S; Trouwborst, R E; Moore, T S; Metzger, E; Kraiya, C; Waite, T J; Druschel, G; Sundby, B; Taillefert, M; Nuzzio, D B; et al. (Marine Chemistry, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Variable morphologic expression of volcanic, tectonic, and hydrothermal processes at six hydrothermal vent fields in the Lau back-arc basin - Ferrini, V L; Tivey, M K; Carbotte, S M; Martinez, F; Roman, C (Geochemistry, Geophysics, Geosystems, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Variation in sulfur speciation with shellfish presence at a Lau Basin diffuse flow vent site - Waite, T J; Moore, T S; Childress, J J; Hsu-Kim, H; Mullaugh, K M; Nuzzio, D B; Paschal, A N; Tsang, J; Fisher, C R; Luther, G W (Journal of Shellfish Research, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Vehicles for deep-sea exploration - Humphris, S E (Encyclopedia of ocean sciences, 2008)
Keywords: AUV ABE (Autonomous Benthic Explorer); AUV Sentry (Autonomous Underwater Vehicle); HOV Alvin (Human Occupied Vehicle); ROV DSL-120 (Remotely Operated Vehicle); ROV Jason (Remotely Operated Vehicle)

Vertical distribution and characterization of aerobic phototrophic bacteria at the Juan de Fuca Ridge in the Pacific Ocean - Rathgeber, C; Lince, M T; Alric, J; Lang, Andrew S; Humphrey, E; Blankenship, R E; Vermeglio, A; Plumley, F G; Van Dover, C L; Beatty, J T; Yurkov, V (Photosynthesis Research, 2008)
The vertical distribution of culturable anoxygenic phototrophic bacteria was investigated at five sites at or near the Juan de Fuca Ridge in the Pacific Ocean. Twelve similar strains of obligately aerobic phototrophic bacteria were isolated in pure culture, from depths ranging from 500 to 2,379 m below the surface. These strains appear morphologically, physiologically, biochemically, and phylogenetically similar to Citromicrobium bathyomarinum strain JF-1, a bacterium previously isolated from hydrothermal vent plume waters. Only one aerobic phototrophic strain was isolated from surface waters. This strain is morphologically and physiologically distinct from the strains isolated at deeper sampling locations, and phylogenetic analysis indicates that it is most closely related to the genus Erythrobacter. Phototrophs were cultivated from three water casts taken above vents but not from two casts taken away from active vent sites. No culturable anaerobic anoxygenic phototrophs were detected. The photosynthetic apparatus was investigated in strain JF-1 and contains light-harvesting I and reaction center complexes, which are functional under aerobic conditions.

Vision-based tracking with projective mapping for parameter identification of remotely operated vehicles - Chen, H -H (Ocean Engineering, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Voltammetric (micro)electrodes for the in situ study of Fe2+ oxidation kinetics in hot springs and S2O3-2- production at hydrothermal vents - Mullaugh, K M; Luther, G W; Ma, S; Moore, T S; Yucel, M; Becker, E L; Podowski, E L; Fisher, C R; Trouwborst, R E; Pierson, B K (Electroanalysis, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Widespread secondary volcanism near northern Hawaiian Islands - Garcia, M O; Ito, G; Weis, D; Geist, D J; Swinnard, L; Bianco, T; Flinders, A; Taylor, B; Appelgate, B; Blay, C; Hanano, D; Silva, I N; et al. (EOS, Transactions, American Geophysical Union, 2008)
Keywords: ROV Jason (Remotely Operated Vehicle)

Zinc stable isotopes in seafloor hydrothermal vent fluids and chimneys - John, S G; Rouxel, O J; Craddock, P R; Engwall, A M; Boyle, E A (Earth and Planetary Science Letters, 2008)
Keywords: HOV Alvin (Human Occupied Vehicle)

Advances in High Resolution Imaging from Underwater Vehicles - Singh, H; Roman, C; Pizarro, O; Eustice, R (Robotics Research: Results of the 12th International Symposium ISRR, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Alvin explores the deep northern Gulf of Mexico Slope - Roberts, H; Carney, R; Kupchik, M; Fisher, C R; Nelson, Kim; Becker, E; Goehring, E; Lessard-Pilon, S; Telesnicki, G; Bernard, B; Brooks, J; Bright, M; et al. (EOS, Transactions, American Geophysical Union, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Amphi-Atlantic cold-seep Bathymodiolus species complexes across the equatorial belt - Olu-Le Roy, K; von Cosel, R; Hourdez, S; Carney, S L; Jollivet, D (Deep-Sea Research. Part I: Oceanographic Research Papers, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Amphipoda (Crustacea; Peracarida) from the hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and sebidae - Larsen, K (Zootaxa, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Ancient DNA techniques : applications for deep-water corals - Waller, R G; Adkins, J F; Robinson, L F; Shank, T M (Bulletin of Marine Science, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

An anthropologist underwater: Immersive soundscapes, submarine cyborgs, and transductive ethnography - Helmreich, S (American Ethnologist, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Autonomous and remotely operated vehicle technology for hydrothermal vent discovery, exploration, and sampling - Yoerger, D R; Bradley, A M; Jakuba, M V; German, C R; Shank, T M; Tivey, M (Oceanography, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer); ROV Jason (Remotely Operated Vehicle); ROV Medea (Remotely Operated Vehicle)

Characteristics of vesicomyid clams and their environment at the Blake Ridge cold seep, South Carolina, USA - Heyl, T P; Gilhooly, W P; Chambers, R M; Gilchrist, G W; Macko, S A; Ruppel, C D; Van Dover, C L (Marine Ecology Progress Series, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Chemistry of iron sulfides - Rickard, D T; Luther, G W (Chemical Reviews, 2007)

Cold Seeps and Associated Communities of the Gulf of Mexico - Fisher, C R; Roberts, H; Cordes, E; Bernard, B (Oceanography, 2007)

Community structure and nutrition of deep methane-seep macrobenthos from the North Pacific (Aleutian) Margin and the Gulf of Mexico (Florida Escarpment) - Levin, L A; Mendoza, G F (Marine Ecology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Continuous enrichment culturing of thermophiles under sulfate and nitrate-reducing conditions and at deep-sea hydrostatic pressures - Houghton, J L; Seyfried, W E; Banta, A B; Reysenbach, A -L (Extremophiles, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Deep-sea scleractinian coral age and depth distributions in the northwest Atlantic for the last 225,000 years - Robinson, L F; Adkins, J F; Scheirer, D S; Fernandez, D P; Gagnon, A C; Waller, R G (Bulletin of Marine Science, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Design considerations for engineering autonomous underwater vehicles - Shah, V P (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer); AUV Sentry (Autonomous Underwater Vehicle)

Diversity of melofauna and free-living nematodes in hydrothermal vent mussel beds on the northern and southern East Pacific Rise - Copley, J T P; Flint, H C; Ferrero, T J; Van Dover, C L (Journal of the Marine Biological Association of the United Kingdom, 2007)
The ecology and biogeography of meiofauna at deep-sea hydrothermal vents have historically received less attention than those of mega- and macrofauna. This study examines the composition of major meiofaunal taxa in beds of the mussel Bathymodiolus thermophilus at hydrothermal vents on the northern and southern East Pacific Rise (EPR) and presents the first comparison of species assemblages of the dominant taxon, the nematodes, among sites spanning 27 degrees of latitude. Meiofaunal samples were collected by submersible from three mussel beds at 9 degrees N on the EPR and four mussel beds between 17 and 18 degrees S in 1999. Estimated ages of the mussel beds at the time of sampling range from 4 to {>}20 years, enabling investigation of the influence of mussel bed age on meiofaunal assemblages. Overall, the meiofauna of the mussel beds was dominated by nematodes, with copepods constituting the second most abundant meiofaunal group. There was variation in the ratio of nematodes to copepods between sites, however, with copepods more abundant than nematodes in the youngest mussel beds. Apart from polychaete larvae, other meiofaunal groups were generally present at very low abundance (
Keywords: HOV Alvin (Human Occupied Vehicle)

Diversity, relative abundance and metabolic potential of bacterial endosymbionts in three Bathymodiolus mussel species from cold seeps in the Gulf of Mexico - Duperron, S; Sibuet, M; MacGregor, B J; Kuypers, M M M; Fisher, C R; Dubilier, N (Environmental microbiology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Environmental differences in hemoglobin gene expression in the hydrothermal vent tubeworm, Ridgeia piscesae - Carney, S L; Flores, J F; Orobona, K M; Butterfield, D A; Fisher, C R; Schaeffer, S W (Comparative Biochemistry and Physiology B-Biochemistry {&} Molecular Biology, 2007)

Evidence for hydrothermal Archaea within the basaltic flanks of the East Pacific Rise - Ehrhardt, C J; Haymon, R M; Lamontagne, M G; Holden, P A (Environmental Microbiology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Expedition to the Deep Slope 2007, June 4 - July 6, 2007 - Roberts, H H; Potter, J M (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Office of Ocean Exploration, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle); ROV Medea (Remotely Operated Vehicle)

Experimental deep-sea deployments reveal diverse Northeast Pacific wood-boring bivalves of Xylophagainae (Myoida: Pholadidae) - Voight, J R (Journal of Molluscan Studies, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Experimental evidence of habitat provision by aggregations of Riftia pachyptila at hydrothermal vents on the East Pacific Rise - Govenar, B; Fisher, C R (Marine Ecology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Exploring the submarine ring of fire: Mariana Arc-Western Pacific - Embley, R W; Baker, E T; Butterfield, D A; Chadwick, W W; Lupton, J E; Resing, J A; de Ronde, C E J; Nakamura, K I; Tunnicliffe, V; Dower, J F; Merle, S G (Oceanography, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Faults and damage zones in fast-spread crust exposed on the north wall of the Hess Deep Rift: Conduits and seals in seafloor hydrothermal systems - Hayman, N W; Karson, J A (Geochemistry, Geophysics, Geosystems, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Argo (Remotely Operated Vehicle); ROV DSL-120 (Remotely Operated Vehicle)

Fishes of the New England Seamounts - Canache, C (Florida Atlantic University, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

A fungal epizootic in mussels at a deep-sea hydrothermal vent - Van Dover, C L; Ward, M E; Scott, J L; Underdown, J; Anderson, B; Gustafson, C; Whalen, M; Carnegie, R B (Marine Ecology, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Geochemistry of dikes and lavas from tectonic windows - Pollock, M A (Duke University, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Geology and hydrothermal evolution of the Mothra Hydrothermal Field, Endeavour Segment, Juan de Fuca Ridge - Glickson, D A; Kelley, D S; Delaney, J R (Geochemistry, Geophysics, Geosystems, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Geomicrobiology of the ocean crust: the phylogenetic diversity, abundance, and distribution of microbial communities inhabiting basalt and implications for rock alteration processes - Santelli, C M (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Growth and longevity of the tubeworm Ridgeia piscesae in the variable diffuse flow habitats of the Juan de Fuca Ridge - Urcuyo, I A; Bergquist, D C; MacDonald, I R; VanHorn, M; Fisher, C R (Marine Ecology Progress Series, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Habitat associations in gastropod species at east Pacific rise hydrothermal vents (9 degrees 50 ' N) - Mills, S W; Mullineaux, L S; Tyler, P A (Biological Bulletin, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

High-resolution bathymetry using Alvin scanning sonar at the Southern East Pacific Rise and its implication to the formation of collapsed lava lakes - Tanaka, A; Rosat, S; Kisimoto, K; Urabe, T (Earth Planets and Space, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Hydrothermal Vent Ecosystems - Fisher, C R; Takai, K; Le Bris, N (Oceanography, 2007)

In situ measurement of dissolved chloride in high temperature hydrothermal fluids - Larson, B I; Olson, E J; Lilley, M D (Geochimica et Cosmochimica Acta, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Inconsistent correlation of seismic layer 2a and lava layer thickness in oceanic crust - Christeson, G L; McIntosh, K D; Karson, J A (Nature, 2007)

Influence of hydrodynamics on the larval supply to hydrothermal vents on the East Pacific Rise - Adams, D K (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007)
Examination of the scales at which larval supply varies spatially and temporally, and correlation with concurrent physical observations can provide insights into larval transport mechanisms that contribute to structuring marine benthic communities. In order to facilitate field studies, this thesis first provides new morphological and genetic identifications for hydrothermal vent gastropod larvae along the northern East Pacific Rise. Daily and weekly variability in the supply of hydrothermal vent gastropod larvae to two hydrothermal vents, 1.6 km apart on the East Pacific Rise, were quantified concurrently with current velocity observations. The magnitude and temporal pattern of larval supply differed between vent sites, despite their close proximity. A strong correlation between along-axis flow and daily larval supply suggested that larval supply occurred primarily via along-axis transport between local sources 1-2 km apart. However, weekly larval supply appeared to be driven by larger spatial scales through losses associated with cross-axis flows and the passage of mesoscale eddies. Tracer movement within a quasi-geostrophic eddy model was consistent with the observations of decreased larval supply concurrent with an eddy observed via satellite altimetry. The tracer movement also indicated that deep eddy-induced flow could facilitate a long-distance dispersal event, enhancing dispersal between vents 100s km apart.
Keywords: HOV Alvin (Human Occupied Vehicle)

Interplay between faults and lava flows in construction of the upper oceanic crust: The East Pacific Rise crest 9 degrees 25 '-9 degrees 58 ' N - Escartin, J; Soule, S A; Fornari, D J; Tivey, M A; Schouten, H; Perfit, M R (Geochemistry, Geophysics, Geosystems, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle); ROV DSL-120 (Remotely Operated Vehicle)

Lithium contents and isotopic compositions of ferromanganese deposits from the global ocean - Chan, L H; Hein, J R (Deep-Sea Research. Part II: Topical Studies in Oceanography, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

The Lost City Hydrothermal Field revisited - Kelley, D S; Fruh-Green, G L; Karson, J A; Ludwig, K A (Oceanography, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer); HOV Alvin (Human Occupied Vehicle)

Mechatronic integration and implementation of in situ multipoint temperature measurement for seafloor hydrothermal vent - Wu, H C; Chen, Y; Yang, C J; Zhang, J F; Zhou, H Y; Peng, X T; Ji, F W (Science in China Series E-Technological Sciences, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Mid-ocean ridge exploration with an autonomous underwater vehicle - Yoerger, D R; Bradley, A M; Jakuba, M V; Tivey, M A; German, C R; Shank, T M; Embley, R W (Oceanography, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Molecular phylogeny of the East Pacific squat lobsters of the genus Munidopsis (decapoda: galatheidae) with the descriptions of seven new species - Jones, W J; Macpherson, E (Journal of Crustacean Biology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

New insights into mid-ocean ridge volcanic processes from the 2005-2006 eruption of the East Pacific Rise, 9 degrees 46' N-9 degrees 56' N - Soule, S A; Fornari, D J; Perfit, M R; Rubin, K H (Geology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

New nemertean worms (Carcinonemertidae) on bythograeid crabs (decapoda: brachyura) from Pacific hydrothermal vent sites - Shields, J D; Segonzac, M (Journal of Crustacean Biology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

A new species of Axinus (Bivalvia: Thyasiroidea) from the Baby Bare Seamount, Cascadia Basin, NE Pacific with a description of the anatomy - Oliver, P G; Holmes, A M (Journal of Conchology, 2007)

A new species of Phyllochaetopterus (Chaetopteridae : Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean - Nishi, E; Rouse, G W (Zootaxa, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Oceanic lithosphere magnetization: marine magnetic investigations of crustal accretion and tectonic processes in mid-ocean ridge environments - Williams, C M (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV DSL-120 (Remotely Operated Vehicle)

Petrology and geochemistry of primitive lower oceanic crust from Pito Deep: Implications for the accretion of the lower crust at the Southern East Pacific Rise - Perk, N W; Coogan, L A; Karson, J A; Klein, E M; Hanna, H D (Contributions to Mineralogy and Petrology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Phone call links inner and outer space - Nevala, A E (Oceanus, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Porosity of the upper edifice of Axial Seamount - Gilbert, L A; McDuff, R E; Johnson, H P (Geology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

A proteomic snapshot of life at a vent - Fisher, C R; Girguis, P (Science, 2007)

Quantitative study of the deformation at Southern Explorer Ridge using high-resolution bathymetric data - Deschamps, A; Tivey, M A; Embley, R W; Chadwick, W W (Earth and Planetary Science Letters, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Quartz solubility in the two-phase and critical region of the NaCl-KCl-H2O system: Implications for submarine hydrothermal vent systems at 9 degrees 50 ' N East Pacific Rise - Foustoukos, D I; Seyfried, W E (Geochimica et Cosmochimica Acta, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Recent eruptive history and magma reservoir dynamics on the southern East Pacific Rise at 17 degrees 30' S - Bergmanis, E C; Sinton, J; Rubin, K H (Geochemistry, Geophysics, Geosystems, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV DSL-120 (Remotely Operated Vehicle)

The scale and origin of the osmium isotope variations in mid-ocean ridge basalts - Gannoun, A; Burton, K W; Parkinson, I J; Alard, O; Schiano, P; Thomas, L E (Earth and Planetary Science Letters, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Search for the proverbial mantle osmium sources to the oceans: Hydrothermal alteration of mid-ocean ridge basalt - Sharma, M; Rosenberg, E J; Butterfield, D A (Geochimica et Cosmochimica Acta, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

A self-consistent bathymetric mapping algorithm - Roman, C; Singh, H (Journal of Field Robotics, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

The Silent Deep: The discovery, ecology, and conservation of the deep sea - Koslow, T (University of Chicago Press, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

So you wanna be an: Aquanaut - Wootton, A (Popular Science, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Stable isotope studies in chemoautotrophically based ecosystems: An update - Van Dover, C L (Stable isotopes in ecology and environmental science, 2007)

Stochastic analysis of exit fluid temperature records from the active TAG hydrothermal mound (Mid-Atlantic Ridge, 26 degrees N); 1, Modes of variability and implications for subsurface flow - Sohn, R A (Journal of Geophysical Research, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle); ROV Jason (Remotely Operated Vehicle)

Stochastic mapping for chemical plume source localization with application to autonomous hydrothermal vent discovery - Jakuba, M V (Massachusetts Institutte of Technology and Woods Hole Oceanographic Institution, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Stratigraphic and sedimentological evidence for late Wisconsinan sub-glacial outburst floods to Laurentian Fan - Piper, D J W; Shaw, J; Skene, K I (Palaeogeography, Palaeoclimatology, Palaeoecology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Studies on Western Atlantic Octocorallia (Gorgonacea: Primnoidae), Part 8: New Records of Primnoidae from the New England and Corner Rise Seamounts - Cairns, S D (Proceedings of the Biological Society of Washington, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Submeter bathymetric mapping of volcanic and hydrothermal features on the East Pacific Rise crest at 9 degrees 50 ' N - Ferrini, V L; Fornari, D J; Shank, T M; Kinsey, J C; Tivey, M A; Soule, S A; Carbotte, S M; Whitcomb, L L; Yoerger, D R; Howland, J (Geochemistry, Geophysics, Geosystems, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Techniques for deep sea near bottom survey using an autonomous underwater vehicle - Yoerger, D R; Jakuba, M V; Bradley, A M; Bingham, B (International Journal of Robotics Research, 2007)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Temporal and spatial variation in the reproductive ecology of the vent-endemic amphipod Ventiella sulfuris in the eastern Pacific - Sheader, M; Van Dover, C L (Marine Ecology Progress Series, 2007)
Populations of the vent-endemic amphipod Ventiella sulfuris were compared from 6 East Pacific Rise (EPR) vent sites of different ages, 3 from the northern EPR and 3 from the southern EPR. Although vent age affected amphipod abundance, with no individuals at the oldest vent, other population/reproductive parameters were found to be site dependent rather than vent age dependent. There was little within-site variation in population structure and reproductive output, probably the result of high within-site motility. However, there were significant between-site and between-field differences, indicating a high degree of population and reproductive variability and a moderate degree of vent fidelity. Since population structure and reproductive output varied between sites, the possibility of their use as biomarkers of vent 'condition' is discussed. The reproductive ecology of V. sulfuris is described for the first time and compared to that of other vent amphipod species. Unlike other species studied, reproductive output is relatively high. Adults move to the periphery of vents to reproduce and brood; after brooding, they moult again, return to feed at vent habitats (e.g. mussel and tube worm beds), and undergo a new phase of gonad maturation and emigration.
Keywords: HOV Alvin (Human Occupied Vehicle)

Three-dimensional structure of fluid conduits sustaining an active deep marine cold seep - Hornbach, M J; Ruppel, C D; Van Dover, C L (Geophysical Research Letters, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Toward a mechanistic understanding of larval dispersal: insights from genomic fingerprinting of the deep-sea hydrothermal vent tubeworm Riftia pachyptila - Shank, T M; Halanych, K M (Marine Ecology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Towards high-resolution imaging from underwater vehicles - Singh, H; Roman, C; Pizarro, O; Eustice, R; Can, A (International Journal of Robotics Research, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Transparent exopolymer particles in a deep-sea hydrothermal system: Guaymas Basin, Gulf of California - Prieto, L; Cowen, J P (Marine Biology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Tubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Rise - Gollner, S; Zekeley, J; Govenar, B; Le Bris, N; Nemeschkal, H L; Fisher, C R; Bright, M (Marine Ecology Progress Series, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Undersea eruption traps devices on the bottom of the Pacific - Nevala, A E (Oceanus, 2007)
Keywords: ROV Jason (Remotely Operated Vehicle)

Underwater applications of high-power light-emitting diodes: solid-state lighting comes of age in the deep sea as high-power LEDs debut on submersible Alvin dives - Olsson, M; Hardy, K; Sanderson, J (Sea Technology, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

Using stable isotopes and quantitative community characteristics to determine a local hydrothermal vent food web - Bergquist, D C; Eckner, J T; Urcuyo, I A; Cordes, E E; Hourdez, S; Macko, S A; Fisher, C R (Marine Ecology Progress Series, 2007)
Keywords: HOV Alvin (Human Occupied Vehicle)

16S rRNA phylogenetic investigation of the candidate division Korarchaeota - Auchtung, T A; Takacs-Vesbach, C D; Cavanaugh, C M (Applied and Environmental Microbiology, 2006)
Keywords: HOV Alvin (Human Occupied Vehicle)

ABE the autonomous benthic explorer - Lippsett, L (Oceanus, 2006)
Keywords: AUV ABE (Autonomous Benthic Explorer)

Adaptive sampling in autonomous marine sensor networks - Eickstedt, D P (Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution, 2006)
Keywords: AUV ABE (Autonomous Benthic Explorer)