Tubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Rise
Le Bris, Nadine
Nemeschkal, Hans L.
Fisher, Charles R.
MetadataShow full item record
KeywordMeiobenthos; Meiofauna; Hydrothermal vent; East Pacific Rise; Nematodes; Copepods; Community study; Riftia pachyptila
The 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%.
Author 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.
Suggested CitationArticle: Gollner, Sabine, Zekely, Julia, Govenar, Breea, Le Bris, Nadine, Nemeschkal, Hans L., Fisher, Charles R., Bright, Monika, "Tubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Rise", Marine Ecology Progress Series 337 (2007): 39-49, DOI:10.3354/meps337039, https://hdl.handle.net/1912/4517
Showing items related by title, author, creator and subject.
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, Richard A.; Shank, Timothy M.; Luther, George W.; Vetriani, Costantino; Tolstoy, Maya; Nuzzio, Donald B.; Moore, Tommy S.; Waldhauser, Felix; Crespo-Medina, Melitza; Chatziefthimiou, Aspassia D.; Annis, Eric R.; Reed, Andrew J. (National Shellfisheries Association, 2008-03)In April 1991, submarine volcanic eruptions initiated the formation of numerous hydrothermal vents between 9°45′ and 9°52′N along the crest of the East Pacific Rise (EPR). Dramatic changes in biological community structure ...
Microbial diversity of hydrothermal sediments in the Guaymas Basin : evidence for anaerobic methanotrophic communities Teske, Andreas; Hinrichs, Kai-Uwe; Edgcomb, Virginia P.; de Vera Gomez, Alvin; Kysela, David; Sylva, Sean P.; Sogin, Mitchell L.; Jannasch, Holger W. (American Society for Microbiology, 2002-04)Microbial communities in hydrothermally active sediments of the Guaymas Basin (Gulf of California, Mexico) were studied by using 16S rRNA sequencing and carbon isotopic analysis of archaeal and bacterial lipids. The Guaymas ...
Pathways of carbon and energy metabolism of the epibiotic community associated with the deep-sea hydrothermal vent shrimp Rimicaris exoculata Hugler, Michael; Petersen, Jillian M.; Dubilier, Nicole; Imhoff, Johannes F.; Sievert, Stefan M. (Public Library of Science, 2011-01-07)The shrimp Rimicaris exoculata dominates the faunal biomass at many deep-sea hydrothermal vent sites at the Mid-Atlantic Ridge. In its enlarged gill chamber it harbors a specialized epibiotic bacterial community for which ...