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Journal articles on the topic 'Hydrothermal vents – Juan de Fuca Ridge'

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Published: 4 June 2021

Last updated: 8 February 2022

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1

Larsen, Kim, and Traudl Krapp-Schickel. "Amphipoda (Crustacea: Peracarida) from chemically reduced habitats; the hydrothermal vent system of the north-east Pacific. Part II. Melitidae and Eusiridae." Journal of the Marine Biological Association of the United Kingdom 87, no. 5 (2007): 1207–17. http://dx.doi.org/10.1017/s002531540705672x.

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The amphipod fauna from habitats in hydrothermal vents on the Juan de Fuca Ridge, Escabana Trough, and Gorda Ridge and from experimental wood deployments is examined. The material revealed one new species of Melitidae, Bathyceradocus wuzzae, and one of Eusiridae, Leptamphopus fragilis.

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2

Tsurumi, Maia, and Verena Tunnicliffe. "Characteristics of a hydrothermal vent assemblage on a volcanically active segment of Juan de Fuca Ridge, northeast Pacific." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 3 (2001): 530–42. http://dx.doi.org/10.1139/f01-005.

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An eruption on Cleft segment, Juan de Fuca Ridge, in 1986 provided an opportunity to observe potential successional patterns in vent-animal colonisation. Other objectives were to describe the Cleft fauna, examine the distribution and abundance of selected taxa, and determine if the fauna reflected changes in water chemistry. Biological samples were tubeworm grabs collected by submersible, and visual data were still photographs and videos. Two years post eruption, there were extensive diffuse vents and 23 of the 44 species constituting the Cleft species pool were present. Five years post erupti

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3

Tsurumi, Maia, Ramona C. de Graaf, and Verena Tunnicliffe. "Distributional and Biological Aspects of Copepods at Hydrothermal Vents on the Juan de Fuca Ridge, north-east Pacific ocean." Journal of the Marine Biological Association of the United Kingdom 83, no. 3 (2003): 469–77. http://dx.doi.org/10.1017/s0025315403007367h.

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The abundance patterns of copepods on the Juan de Fuca Ridge was examined. One species was studied in detail. Twelve non-parasitic species are recorded from the Juan de Fuca, but only three dirivultid species and some unidentified harpacticoids are abundant in collections. Densities are estimated at 0·5 copepod cm−2 on vestimentiferan tubes to over 8 cm−2 on chimney surfaces. Aphotopontius forcipatus is most abundant at new vents and Benthoxynus spiculifer is most abundant at mature vents. Vents with reduced or undetectable fluid flow have higher diversity of copepod fauna. The life cycle of t

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4

Toner, Brandy M., Cara M. Santelli, Matthew A. Marcus, et al. "Biogenic iron oxyhydroxide formation at mid-ocean ridge hydrothermal vents: Juan de Fuca Ridge." Geochimica et Cosmochimica Acta 73, no. 2 (2009): 388–403. http://dx.doi.org/10.1016/j.gca.2008.09.035.

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5

Canadian American Seamount Expediti. "Hydrothermal vents on an axis seamount of the Juan de Fuca ridge." Nature 313, no. 5999 (1985): 212–14. http://dx.doi.org/10.1038/313212a0.

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6

Bates, Amanda E. "Size- and sex-based habitat partitioning by Lepetodrilus fucensis near hydrothermal vents on the Juan de Fuca Ridge, Northeast Pacific." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 11 (2008): 2332–41. http://dx.doi.org/10.1139/f08-139.

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This study examines habitat partitioning by a hydrothermal vent limpet, Lepetodrilus fucensis, along environmental gradients and among vents with differing levels of flux. To test for spatial patterns in size structure, two distances from isolated vent flows were sampled (0–25 cm and 51–75 cm). Lepetodrilus fucensis displays a size gradient: juveniles are rare in flow (relative abundance < 5%, density = 56 ± 46 individuals·dm–2) and abundant peripherally (>95%, 2616 ± 2002 individuals·dm–2). Next, sex-based habitat partitioning was examined. High flux locations are female-biased (proport

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7

LARSEN, KIM. "Tanaidacea (Crustacea; Peracarida) from chemically reduced habitatsóthe hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific." Zootaxa 1164, no. 1 (2006): 1. http://dx.doi.org/10.11646/zootaxa.1164.1.1.

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The tanaidacean fauna from hydrothermal vents habitats on the Juan de Fuca Ridge, Escabana Trough, Gorda Ridge and from experimental wood deployments, is examined. The material revealed species belonging to the genera; Armaturatanais, Meromonakantha, Neotanais, Pseudotanais, Protanais, Typhlotanais, and an undescribed typhlotanaid genus. The tanaidaceanfauna was almost exclusively dominated by Protanais, which in turn was almost exclusively found on recovered wood blocks. Most species are new to science and the species Armaturatanais trispinipodus n. sp. and Protanais ligniamator n. sp. are de

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8

Mehta, Mausmi P., David A. Butterfield, and John A. Baross. "Phylogenetic Diversity of Nitrogenase (nifH) Genes in Deep-Sea and Hydrothermal Vent Environments of the Juan de Fuca Ridge." Applied and Environmental Microbiology 69, no. 2 (2003): 960–70. http://dx.doi.org/10.1128/aem.69.2.960-970.2003.

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ABSTRACT The subseafloor microbial habitat associated with typical unsedimented mid-ocean-ridge hydrothermal vent ecosystems may be limited by the availability of fixed nitrogen, inferred by the low ammonium and nitrate concentrations measured in diffuse hydrothermal fluid. Dissolved N2 gas, the largest reservoir of nitrogen in the ocean, is abundant in deep-sea and hydrothermal vent fluid. In order to test the hypothesis that biological nitrogen fixation plays an important role in nitrogen cycling in the subseafloor associated with unsedimented hydrothermal vents, degenerate PCR primers were

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9

Bourbonnais, A., S. K. Juniper, D. A. Butterfield, et al. "Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge." Biogeosciences 9, no. 11 (2012): 4661–78. http://dx.doi.org/10.5194/bg-9-4661-2012.

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Abstract. Little is known about fixed nitrogen (N) transformation and elimination at diffuse hydrothermal vents where anoxic fluids are mixed with oxygenated crustal seawater prior to discharge. Oceanic N sinks that remove bio-available N ultimately affect chemosynthetic primary productivity in these ecosystems. Using 15N paired isotope techniques, we determined potential rates of fixed N loss pathways (denitrification, anammox) and dissimilatory nitrate reduction to ammonium (DNRA) in sulfidic hydrothermal vent fluids discharging from the subsurface at several sites at Axial Volcano and the E

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Little, Sarah A., Keith D. Stolzenbach, and G. Michael Purdy. "The sound field near hydrothermal vents on Axial Seamount, Juan de Fuca Ridge." Journal of Geophysical Research 95, B8 (1990): 12927. http://dx.doi.org/10.1029/jb095ib08p12927.

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11

Juniper, S. Kim, Verena Tunnicliffe, and Eve C. Southward. "Hydrothermal vents in turbidite sediments on a Northeast Pacific spreading centre: organisms and substratum at an ocean drilling site." Canadian Journal of Zoology 70, no. 9 (1992): 1792–809. http://dx.doi.org/10.1139/z92-247.

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The interaction of substratum, organisms, and hydrothermal venting was studied at Middle Valley on the northern Juan de Fuca Ridge, where venting occurs through turbidite sediments. Presently, hydrothermal activity in Middle Valley is concentrated within the 300 × 800 m High Heat Flow Area vent field, where it is associated with 10–15 m high sulphide mounds topped by active chimneys. Information on the biological nature of the area was derived from video and photographic records of four 1990 dives by the submersible Alvin, samples collected by Alvin, and bottom photographs by a towed camera. F

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Bourbonnais, A., S. K. Juniper, D. A. Butterfield, et al. "Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge." Biogeosciences Discussions 9, no. 4 (2012): 4177–223. http://dx.doi.org/10.5194/bgd-9-4177-2012.

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Abstract. Little is known about nitrogen (N) transformations in general, and the elimination of N in particular, at diffuse vents where anoxic hydrothermal fluids have mixed with oxygenated crustal seawater prior to discharge. Oceanic N sinks that remove bio-available N ultimately affect chemosynthetic primary productivity in these ecosystems. Using 15N paired isotope techniques, we determined potential rates of fixed N-loss pathways (denitrification, anammox) and dissimilative nitrate reduction to ammonium (DNRA) in sulfidic hydrothermal vent fluids discharging from the subsurface at several

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13

Wang, Shufang, Xiang Xiao, Lijing Jiang, et al. "Diversity and Abundance of Ammonia-Oxidizing Archaea in Hydrothermal Vent Chimneys of the Juan de Fuca Ridge." Applied and Environmental Microbiology 75, no. 12 (2009): 4216–20. http://dx.doi.org/10.1128/aem.01761-08.

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ABSTRACT The abundance and diversity of archaeal ammonia monooxygenase subunit A (amoA) genes from hydrothermal vent chimneys at the Juan de Fuca Ridge were investigated. The majority of the retrieved archaeal amoA sequences exhibited identities of less than 95% to those in the GenBank database. Novel ammonia-oxidizing archaea may exist in the hydrothermal vent environments.

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Tsurumi, Maia, and Verena Tunnicliffe. "Tubeworm-associated communities at hydrothermal vents on the Juan de Fuca Ridge, northeast Pacific." Deep Sea Research Part I: Oceanographic Research Papers 50, no. 5 (2003): 611–29. http://dx.doi.org/10.1016/s0967-0637(03)00039-6.

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15

Tunnicliffe, Verena, Robert W. Embley, James F. Holden, David A. Butterfield, Gary J. Massoth, and S. Kim Juniper. "Biological colonization of new hydrothermal vents following an eruption on Juan de Fuca Ridge." Deep Sea Research Part I: Oceanographic Research Papers 44, no. 9-10 (1997): 1627–44. http://dx.doi.org/10.1016/s0967-0637(97)00041-1.

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16

Southward, A. J., E. C. Southward, B. Spiro, G. H. Rau, and V. Tunnicliffe. "13C/12C of organisms from Juan de Fuca Ridge hydrothermal vents: a guide to carbon and food sources." Journal of the Marine Biological Association of the United Kingdom 74, no. 2 (1994): 265–78. http://dx.doi.org/10.1017/s002531540003931x.

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Soft tissue δ13C values were determined in vestimentiferan tube worms, alvinellid polychaetes and molluscs from Axial Seamount and Middle Valley, North-east Pacific. Inorganic carbon in mollusc shells and water samples was also analysed. In the vestimentiferan,Ridgeia piscesae, which lives in symbiosis with sulphur-oxidizing chemolithoautotrophic bacteria, tissue samples from the Axial vents showed δ13C values from −11 to −16‰, whereas at Middle Valley, where venting occurs through sediments, the δ13C ranged from −16 to −26‰. The tissues of an associated polychaete,Paralvinella palmiformis, wh

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Khakhina, Alexandra, Victor Kurnosov, Yurii Konovalov, Valeriya Churkina, and Konstantin Galin. "Chemical alteration of sediments on early stage of existing of hydrothermal systems in spreading zones of sedimented ridges (hydrothermal field “Dead Dog”, Middle Valley, Juan de Fuca Ridge)." E3S Web of Conferences 98 (2019): 08011. http://dx.doi.org/10.1051/e3sconf/20199808011.

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In sediments from Holes DSDP 858B, D, F, located near the active hot vent on the thermal field “Dead Dog” in the northern part of the Juan de Fuca Ridge, Middle Valley, a redistribution of chemical elements occurs as a result of solution-rock interaction. During this process, the increase/decrease of their content in hydrothermally altered sediments inversely reflects the decrease/increase of their content in the solution. Nonregular distribution of microelements and REE’s in hydrothermally altered sediments, like a layer pie, reflects the participation of both ascending hydrothermal fluids an

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18

Jacobson, R. S., L. D. Bibee, R. W. Embley, and S. R. Hammond. "A microseismicity survey of Axial Seamount, Juan de Fuca Ridge." Bulletin of the Seismological Society of America 77, no. 1 (1987): 160–72. http://dx.doi.org/10.1785/bssa0770010160.

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Abstract An array of ocean bottom seismometers and hydrophones were deployed within the caldera of Axial Seamount, located at the intersection of the Cobb-Eickelberg Seamount Chain and the Juan de Fuca Ridge. Recent manned submersible dives have discovered the presence of two distinct hydrothermal vent fields. The objective of the microseismicity survey was to determine baseline information necessary for designing an optimal experiment to monitor seismicity associated with submarine volcanic and hydrothermal systems. With an instrument deployment period of eight days, over 1500 events were rec

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19

Tunnicliffe, Verena, and R. Gordon Jensen. "Distribution and behaviour of the spider crab Macroregonia macrochira Sakai (Brachyura) around the hydrothermal vents of the northeast Pacific." Canadian Journal of Zoology 65, no. 10 (1987): 2443–49. http://dx.doi.org/10.1139/z87-369.

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Over 200 individuals of the majid crab Macroregonia macrochira Sakai, 1978 were examined on submersible and towed camera photographs from the Juan de Fuca and Explorer ridges. The crab is found at bathyal depths and shows a preference for hard substrata. Its attraction to the food source at hydrothermal vents is reflected in the high population concentrations around vent sites of the northeast Pacific. Mature males, distinguished by their large chelipeds, tend to be widely dispersed while the female–juvenile group clusters in and around vents. Stomachs of captured specimens contain remains of

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20

Levesque, C., SK Juniper, and J. Marcus. "Food resource partitioning and competition among alvinellid polychaetes of Juan de Fuca Ridge hydrothermal vents." Marine Ecology Progress Series 246 (2003): 173–82. http://dx.doi.org/10.3354/meps246173.

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21

Rathgeber, Christopher, Natalia Yurkova, Erko Stackebrandt, J. Thomas Beatty, and Vladimir Yurkov. "Isolation of Tellurite- and Selenite-Resistant Bacteria from Hydrothermal Vents of the Juan de Fuca Ridge in the Pacific Ocean." Applied and Environmental Microbiology 68, no. 9 (2002): 4613–22. http://dx.doi.org/10.1128/aem.68.9.4613-4622.2002.

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ABSTRACT Deep-ocean hydrothermal-vent environments are rich in heavy metals and metalloids and present excellent sites for the isolation of metal-resistant microorganisms. Both metalloid-oxide-resistant and metalloid-oxide-reducing bacteria were found. Tellurite- and selenite-reducing strains were isolated in high numbers from ocean water near hydrothermal vents, bacterial films, and sulfide-rich rocks. Growth of these isolates in media containing K2TeO3 or Na2SeO3 resulted in the accumulation of metallic tellurium or selenium. The MIC of K2TeO3 ranged from 1,500 to greater than 2,500 μg/ml, a

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22

Tunnicliffe, Verena, and A. R. Fontaine. "Faunal composition and organic surface encrustations at hydrothermal vents on the southern Juan De Fuca Ridge." Journal of Geophysical Research: Solid Earth 92, B11 (1987): 11303–14. http://dx.doi.org/10.1029/jb092ib11p11303.

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23

BONIFÁCIO, PAULO, YANN LELIÈVRE, and EMMANUELLE OMNES. "A new species and phylogenetic insights in Hesiospina (Annelida, Hesionidae)." Zootaxa 4441, no. 1 (2018): 59. http://dx.doi.org/10.11646/zootaxa.4441.1.3.

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Hesionids are a very speciose group of polychaetes. In the deep sea, they occur in different environments such as hydrothermal vents, cold seeps, abyssal depths or whale falls. In the present study, a new species of Hesionidae, Hesiospina legendrei sp. nov. has been identified based on morphological and molecular (16S and COI genes) data from hydrothermal vents located in Juan de Fuca Ridge (NE Pacific Ocean). This new species is characterized by trapezoid prostomium; proboscis with high number of distal papillae (20–27), a pair of sac-like structures inserted ventro-laterally in proboscis; no

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Yurkov, Vladimir V., Steven Krieger, Erko Stackebrandt, and J. Thomas Beatty. "Citromicrobium bathyomarinum, a Novel Aerobic Bacterium Isolated from Deep-Sea Hydrothermal Vent Plume Waters That Contains Photosynthetic Pigment-Protein Complexes." Journal of Bacteriology 181, no. 15 (1999): 4517–25. http://dx.doi.org/10.1128/jb.181.15.4517-4525.1999.

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ABSTRACT We have taxonomically and phylogenetically characterized a new aerobic bacterial strain (JF-1) that contains photosynthetic pigment-protein complexes and which was recently isolated from black smoker plume waters of the Juan de Fuca Ridge. Strain JF-1 is a gram-negative, yellow-pigmented, motile bacterium that is salt-, pH-, and thermotolerant. These properties are consistent with an oligotrophic adaptation to varied environmental conditions thought to exist around deep-sea hydrothermal vents. The analysis of 16S rDNA sequences revealed that strain JF-1 forms a separate phylogenetic b

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LARSEN, KIM. "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." Zootaxa 1445, no. 1 (2007): 1–26. http://dx.doi.org/10.11646/zootaxa.1445.1.1.

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The amphipod fauna from hydrothermal vent habitats on the Juan de Fuca Ridge and from experimental wood deployments are examined. The material revealed, among others, a number of lysianassid species belonging to the genera, Paronesimoides Pirlot, 1933 and Schisturella Norman, 1900, and a species of the family Sebidae, belonging to the genus Seba Bate, 1862. The new species: Paronesimoides voightae, Schisturella hansgeorgi, and Seba bathybia are described. A key to Paronesimoides and Schisturella are given

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Southward, Eve C., Verena Tunnicliffe, and Michael Black. "Revision of the species of Ridgeia from northeast Pacific hydrothermal vents, with a redescription of Ridgeia piscesae Jones (Pogonophora: Obturata = Vestimentifera)." Canadian Journal of Zoology 73, no. 2 (1995): 282–95. http://dx.doi.org/10.1139/z95-033.

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Examination of vestimentiferan worms attributed to the genus Ridgeia from more than 50 vent sites in the northeast Pacific indicates that only one species is present. We amalgamate Ridgeia piscesae Jones and R. phaeophiale Jones under the name R. piscesae and include other forms previously suspected to be different species. Allozyme evidence supports the hypothesis that the populations belong to a highly plastic phenotype. The distance data indicate no substantial genetic differences among populations along Juan de Fuca Ridge and across a transform fault to the northern Gorda Ridge. Morphologi

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Tan, Chunyang, Kang Ding, and William E. Seyfried. "Development and Application of a New Mobile pH Calibrator for Real-Time Monitoring of pH in Diffuse Flow Hydrothermal Vent Fluids." Marine Technology Society Journal 50, no. 2 (2016): 37–47. http://dx.doi.org/10.4031/mtsj.50.2.2.

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AbstractIn situ measurement of pH in diffuse flow hydrothermal vent fluids is necessary to investigate the feedback between geochemical and biochemical processes. Accurate pH determination has been unusually challenging owing to temperature and pressure effects that place severe constraints on the performance of a wide variety of pH sensor systems. In this paper, we describe a newly developed mobile pH calibrator (MpHC), which makes use of In situ calibration protocols that enhance the accuracy of pH measurement and monitoring on the ocean floor at deep-sea hydrothermal vents. The MpHC combine

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Dilly, Geoffrey F., C. Robert Young, William S. Lane, Jasmyn Pangilinan, and Peter R. Girguis. "Exploring the limit of metazoan thermal tolerance via comparative proteomics: thermally induced changes in protein abundance by two hydrothermal vent polychaetes." Proceedings of the Royal Society B: Biological Sciences 279, no. 1741 (2012): 3347–56. http://dx.doi.org/10.1098/rspb.2012.0098.

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Temperatures around hydrothermal vents are highly variable, ranging from near freezing up to 300°C. Nevertheless, animals thrive around vents, some of which live near the known limits of animal thermotolerance. Paralvinella sulfincola , an extremely thermotolerant vent polychaete, and Paralvinella palmiformis , a cooler-adapted congener, are found along the Juan de Fuca Ridge in the northwestern Pacific. We conducted shipboard high-pressure thermotolerance experiments on both species to characterize the physiological adaptations underlying P. sulfincola 's pronounced thermotolerance. Quantitat

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Trivett, D. A., and A. J. Williams. "Effluent from diffuse hydrothermal venting: 2. Measurement of plumes from diffuse hydrothermal vents at the southern Juan de Fuca Ridge." Journal of Geophysical Research 99, no. C9 (1994): 18417. http://dx.doi.org/10.1029/94jc00096.

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Tivey, Maurice A., and H. Paul Johnson. "Crustal magnetization reveals subsurface structure of Juan de Fuca Ridge hydrothermal vent fields." Geology 30, no. 11 (2002): 979. http://dx.doi.org/10.1130/0091-7613(2002)030<0979:cmrsso>2.0.co;2.

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Mullineaux, L. S., P. H. Wiebe, and E. T. Baker. "Larvae of benthic invertebrates in hydrothermal vent plumes over Juan de Fuca Ridge." Marine Biology 122, no. 4 (1995): 585–96. http://dx.doi.org/10.1007/bf00350680.

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Kelly, N., and A. Metaxas. "Diversity of invertebrate colonists on simple and complex substrates at hydrothermal vents on the Juan de Fuca Ridge." Aquatic Biology 3 (September 2, 2008): 271–81. http://dx.doi.org/10.3354/ab00085.

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Allen, Catherine E., Paul A. Tyler, and Cindy L. Van Dover. "Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as a trophic indicator." Journal of the Marine Biological Association of the United Kingdom 81, no. 5 (2001): 817–21. http://dx.doi.org/10.1017/s0025315401004647.

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Specimens of the chemoautotrophic symbiont-bearing hydrothermal vent clam Calyptogena pacifica were collected from hydrothermal vents at the Endeavour segment of the Juan de Fuca Ridge. Total lipid was extracted from gill, foot and mantle tissues, and lipid class and fatty acid composition determined by thin layer chromatography with flame ionization detection (TLC–FID), gas chromatography (GC) and gas chromatography with mass spectrometry (GC–MS). An abundance of n–7 monounsaturated fatty acids (MUFA), especially in the gill, reflected the large contribution of chemoautotrophic symbiotic bact

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Philpotts, J. A., P. J. Aruscavage, and K. L. Von Damm. "Uniformity and diversity in the composition of mineralizing fluids from hydrothermal vents on the southern Juan de Fuca Ridge." Journal of Geophysical Research: Solid Earth 92, B11 (1987): 11327–33. http://dx.doi.org/10.1029/jb092ib11p11327.

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Nakagawa, Satoshi, Fumio Inagaki, Yohey Suzuki, et al. "Microbial Community in Black Rust Exposed to Hot Ridge Flank Crustal Fluids." Applied and Environmental Microbiology 72, no. 10 (2006): 6789–99. http://dx.doi.org/10.1128/aem.01238-06.

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ABSTRACT During Integrated Ocean Drilling Program Expedition 301, we obtained a sample of black rust from a circulation obviation retrofit kit (CORK) observatory at a borehole on the eastern flank of Juan de Fuca Ridge. Due to overpressure, the CORK had failed to seal the borehole. Hot fluids from oceanic crust had discharged to the overlying bottom seawater and resulted in the formation of black rust analogous to a hydrothermal chimney deposit. Both culture-dependent and culture-independent analyses indicated that the black-rust-associated community differed from communities reported from oth

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Lavelle, J. W., M. A. Wetzler, E. T. Baker, and R. W. Embley. "Prospecting for Hydrothermal Vents Using Moored Current and Temperature Data: Axial Volcano on the Juan de Fuca Ridge, Northeast Pacific*." Journal of Physical Oceanography 31, no. 3 (2001): 827–38. http://dx.doi.org/10.1175/1520-0485(2001)031<0827:pfhvum>2.0.co;2.

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Marcus, Jean, Verena Tunnicliffe, and David A. Butterfield. "Post-eruption succession of macrofaunal communities at diffuse flow hydrothermal vents on Axial Volcano, Juan de Fuca Ridge, Northeast Pacific." Deep Sea Research Part II: Topical Studies in Oceanography 56, no. 19-20 (2009): 1586–98. http://dx.doi.org/10.1016/j.dsr2.2009.05.004.

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Lelièvre, Yann, Jozée Sarrazin, Julien Marticorena, et al. "Biodiversity and trophic ecology of hydrothermal vent fauna associated with tubeworm assemblages on the Juan de Fuca Ridge." Biogeosciences 15, no. 9 (2018): 2629–47. http://dx.doi.org/10.5194/bg-15-2629-2018.

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Abstract. Hydrothermal vent sites along the Juan de Fuca Ridge in the north-east Pacific host dense populations of Ridgeia piscesae tubeworms that promote habitat heterogeneity and local diversity. A detailed description of the biodiversity and community structure is needed to help understand the ecological processes that underlie the distribution and dynamics of deep-sea vent communities. Here, we assessed the composition, abundance, diversity and trophic structure of six tubeworm samples, corresponding to different successional stages, collected on the Grotto hydrothermal edifice (Main Endea

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TUNNICLIFFE, V., J. M. ROSE, A. E. BATES, and N. E. KELLY. "Parasitization of a hydrothermal vent limpet (Lepetodrilidae, Vetigastropoda) by a highly modified copepod (Chitonophilidae, Cyclopoida)." Parasitology 135, no. 11 (2008): 1281–93. http://dx.doi.org/10.1017/s0031182008004721.

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SUMMARYThe limpet Lepetodrilus fucensis McLean is very abundant at hydrothermal vents on the Juan de Fuca and Explorer Ridges in the northeast Pacific Ocean. This limpet is parasitized by an undescribed chitonophilid copepod throughout the limpet's range. The parasite copepodite enters the mantle cavity and attaches to the afferent branchial vein. The initial invasive stage is a vermiform endosome within the vein that develops an extensive rootlet system causing an enlargement of the afferent branchial vein. Subsequently, an ectosomal female body grows outside the vein to sizes up to 2 mm in w

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Rona, P. A., D. R. Jackson, T. Wen, et al. "Acoustic mapping of diffuse flow at a seafloor hydrothermal site: Monolith Vent, Juan de Fuca Ridge." Geophysical Research Letters 24, no. 19 (1997): 2351–54. http://dx.doi.org/10.1029/97gl02504.

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Hussain, N., T. M. Church, G. W. Luther, and W. S. Moore. "210Po and210Pb disequilibrium in the hydrothermal vent fluids and chimney deposits from Juan de Fuca Ridge." Geophysical Research Letters 22, no. 23 (1995): 3175–78. http://dx.doi.org/10.1029/95gl03269.

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Chin, Carol S., Kenneth H. Coale, Virginia A. Elrod, Kenneth S. Johnson, Gary J. Massoth, and Edward T. Baker. "In situ observations of dissolved iron and manganese in hydrothermal vent plumes, Juan de Fuca Ridge." Journal of Geophysical Research: Solid Earth 99, B3 (1994): 4969–84. http://dx.doi.org/10.1029/93jb02036.

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43

Tunnicliffe, Verena, Daniel Desbruyères, Didier Jollivet, and Lucien Laubier. "Systematic and ecological characteristics of Paralvinella sulfincola Desbruyères and Laubier, a new polychaete (family Alvinellidae) from northeast Pacific hydrothermal vents." Canadian Journal of Zoology 71, no. 2 (1993): 286–97. http://dx.doi.org/10.1139/z93-041.

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Polychaetes of the family Alvinellidae (Terrebellida) are endemic to hydrothermal vent communities. A new species from the Juan de Fuca and Gorda ridges in the Northeast Pacific is described; aspects of its buccal appendages, segment number, and uncini placement are unique. Because of initial confusion with a sympatric species, Paralvinella palmiformis Desbruyères and Laubier, protein mobilities were examined to differentiate the species electrophoretically with reference to a third alvinellid, Alvinella pompejana. Among the 17 loci scored, fewer than a quarter of the alleles were present in t

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Perez, Maëva, and S. Kim Juniper. "Insights into Symbiont Population Structure among Three Vestimentiferan Tubeworm Host Species at Eastern Pacific Spreading Centers." Applied and Environmental Microbiology 82, no. 17 (2016): 5197–205. http://dx.doi.org/10.1128/aem.00953-16.

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ABSTRACTThe symbiotic relationship between vestimentiferan tubeworms and their intracellular chemosynthetic bacteria is one of the more noteworthy examples of adaptation to deep-sea hydrothermal vent environments. The tubeworm symbionts have never been cultured in the laboratory. Nucleotide sequences from the small subunit rRNA gene suggest that the intracellular symbionts of the eastern Pacific vent tubewormsOasisia alvinae,Riftia pachyptila,Tevnia jerichonana, andRidgeia piscesaebelong to the same phylotype of gammaproteobacteria, “CandidatusEndoriftia persephone.” Comparisons of symbiont ge

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Arquit, Anne M. "Geological and hydrothermal controls on the distribution of megafauna in Ashes Vent Field, Juan de Fuca Ridge." Journal of Geophysical Research 95, B8 (1990): 12947. http://dx.doi.org/10.1029/jb095ib08p12947.

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Trivett, D. A., and A. J. Williams. "Temperature and sound‐speed measurements from diffuse hydrothermal vent plumes at the Southern Juan de Fuca Ridge." Journal of the Acoustical Society of America 92, no. 4 (1992): 2307. http://dx.doi.org/10.1121/1.405094.

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Wang, F., H. Zhou, J. Meng, et al. "GeoChip-based analysis of metabolic diversity of microbial communities at the Juan de Fuca Ridge hydrothermal vent." Proceedings of the National Academy of Sciences 106, no. 12 (2009): 4840–45. http://dx.doi.org/10.1073/pnas.0810418106.

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Jennifer Lin, T., E. A. Breves, M. D. Dyar, H. C. Ver Eecke, J. W. Jamieson, and J. F. Holden. "Magnetite formation from ferrihydrite by hyperthermophilic archaea from Endeavour Segment, Juan de Fuca Ridge hydrothermal vent chimneys." Geobiology 12, no. 3 (2014): 200–211. http://dx.doi.org/10.1111/gbi.12083.

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Zhou, Huaiyang, Jiangtao Li, Xiaotong Peng, Jun Meng, Fengping Wang, and Yuncan Ai. "Microbial diversity of a sulfide black smoker in main endeavour hydrothermal vent field, Juan de Fuca Ridge." Journal of Microbiology 47, no. 3 (2009): 235–47. http://dx.doi.org/10.1007/s12275-008-0311-z.

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Baker, Edward T., and Gary J. Massoth. "Characteristics of hydrothermal plumes from two vent fields on the Juan de Fuca Ridge, northeast Pacific Ocean." Earth and Planetary Science Letters 85, no. 1-3 (1987): 59–73. http://dx.doi.org/10.1016/0012-821x(87)90021-5.

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