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dc.contributor.authorGollner, Sabine  Concept link
dc.contributor.authorZekely, Julia  Concept link
dc.contributor.authorGovenar, Breea  Concept link
dc.contributor.authorLe Bris, Nadine  Concept link
dc.contributor.authorNemeschkal, Hans L.  Concept link
dc.contributor.authorFisher, Charles R.  Concept link
dc.contributor.authorBright, Monika  Concept link
dc.date.accessioned2011-04-26T13:51:49Z
dc.date.available2012-01-01T09:30:25Z
dc.date.issued2007-05-14
dc.identifier.citationMarine Ecology Progress Series 337 (2007): 39-49en_US
dc.identifier.urihttps://hdl.handle.net/1912/4517
dc.descriptionAuthor Posting. © Inter-Research, 2007. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 337 (2007): 39-49, doi:10.3354/meps337039.en_US
dc.description.abstractThe permanent meiobenthic community associated with aggregations of the tubeworm Riftia pachyptila was characterized at 2 different hydrothermal vent sites, Tica and Riftia Field, on the East Pacific Rise near 9°50’N. The maximum effluent temperatures were similar at both sites, but the chemistry of the hydrothermal fluids differed between sites. The abundance of meiobenthos was very low in 5 out of 6 samples (<61 ind. 10 cm–2) and was higher at Tica (20 to 976 ind. 10 cm–2) than at Riftia Field (<1 to 12 ind. 10 cm–2). Meiobenthos abundance was positively correlated with the volume of sediment within the tubeworm aggregations. Sediment consisted mainly of particulate organic material and contained only a few mineral grains. A total of 33 meiobenthic species (15 of them new to science) was identified, comprising nematodes, copepods, ostracods, tanaidaceans, and foraminiferans. The meiobenthic fauna contributed a third to the total species richness in the benthic community associated with these tubeworm aggregations. There were 19 meiobenthic species shared between the 2 sites. The majority of meiobenthic species were first-order primary consumers. The most abundant taxa were nematodes and copepods, and other taxa were rare at both sites. Nematodes numerically dominated the community at Tica, while no clear dominance of a higher taxon could be detected at Riftia Field. Species richness was similar at both sites, whereas Shannon-Wiener diversity index and Pielou’s evenness index were higher at Riftia Field. Due to the differences in the relative abundance of some species and unique occurrence of others at each site, the meiobenthic communities from the 2 different sites had an average Bray-Curtis dissimilarity of almost 70%.en_US
dc.description.sponsorshipThis work was supported by the Austrian Science Foundation grant FWF (P16774-B03 to M.B.), US National Science Foundation grant (OCE-0002729 to C.R.F.), Ifremer and the European Community (Ventox project EVK3-1999-00056P to N.L.B.), and the International Office Vienna and Promotion Grants from the University of Vienna (to J.Z. and S.G.).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoenen_US
dc.publisherInter-Researchen_US
dc.relation.urihttps://doi.org/10.3354/meps337039
dc.subjectMeiobenthosen_US
dc.subjectMeiofaunaen_US
dc.subjectHydrothermal venten_US
dc.subjectEast Pacific Riseen_US
dc.subjectNematodesen_US
dc.subjectCopepodsen_US
dc.subjectCommunity studyen_US
dc.subjectRiftia pachyptilaen_US
dc.titleTubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Riseen_US
dc.typeArticleen_US
dc.identifier.doi10.3354/meps337039


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