Biodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridge

Handle URI:
http://hdl.handle.net/10754/552105
Title:
Biodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridge
Authors:
Sarrazin, Jozée; Legendre, Pierre; de Busserolles, Fanny; Fabri, Marie-Claire; Guilini, Katja; Ivanenko, Viatcheslav N.; Morineaux, Marie; Vanreusel, Ann; Sarradin, Pierre-Marie
Abstract:
Knowledge on quantitative faunal distribution patterns of hydrothermal communities in slow-spreading vent fields is particularly scarce, despite the importance of these ridges in the global mid-ocean system. This study assessed the composition, abundance and diversity of 12 benthic faunal assemblages from various locations on the Eiffel Tower edifice (Lucky Strike vent field, Mid-Atlantic Ridge) and investigated the role of key environmental conditions (temperature, total dissolved iron (TdFe), sulfide (TdS), copper (TdCu) and pH) on the distribution of macro- and meiofaunal species at small spatial scales (< 1 m). There were differences in macro- and meiofaunal community structure between the different sampling locations, separating the hydrothermal community of the Eiffel Tower edifice into three types of microhabitats: (1) cold microhabitats characterized by low temperatures (<6 °C), high TdCu (up to 2.4±1.37 µmol l−1), high pH (up to 7.34±0.13) but low TdS concentrations (<6.98±5.01 µmol l−1); (2) warm microhabitats characterized by warmer temperatures (>6 °C), low pH (<6.5) and high TdS/TdFe concentrations (>12.8 µmol l−1/>1.1 µmol l−1 respectively); and (3) a third microhabitat characterized by intermediate abiotic conditions. Environmental conditions showed more variation in the warm microhabitats than in the cold microhabitats. In terms of fauna, the warm microhabitats had lower macro- and meiofaunal densities, and lower richness and Shannon diversity than the cold microhabitats. Six macrofaunal species (Branchipolynoe seepensis, Amathys lutzi, Bathymodiolus azoricus, Lepetodrilus fucensis, Protolira valvatoides and Chorocaris chacei) and three meiofaunal taxa (Paracanthonchus, Cephalochaetosoma and Microlaimus) were identified as being significant indicator species/taxa of particular microhabitats. Our results also highlight very specific niche separation for copepod juveniles among the different hydrothermal microhabitats. Some sampling units showed unique faunal composition and increased beta diversity on the Eiffel Tower edifice. Contrary to what was expected, the highest beta diversity was not associated with a particular microhabitat type, but rather with location on the central part of the edifice where other structuring factors may predominate.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Biodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridge 2015 Deep Sea Research Part II: Topical Studies in Oceanography
Publisher:
Elsevier BV
Journal:
Deep Sea Research Part II: Topical Studies in Oceanography
Issue Date:
25-Apr-2015
DOI:
10.1016/j.dsr2.2015.04.013
Type:
Article
ISSN:
09670645
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0967064515001290
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorSarrazin, Jozéeen
dc.contributor.authorLegendre, Pierreen
dc.contributor.authorde Busserolles, Fannyen
dc.contributor.authorFabri, Marie-Claireen
dc.contributor.authorGuilini, Katjaen
dc.contributor.authorIvanenko, Viatcheslav N.en
dc.contributor.authorMorineaux, Marieen
dc.contributor.authorVanreusel, Annen
dc.contributor.authorSarradin, Pierre-Marieen
dc.date.accessioned2015-05-03T14:15:41Zen
dc.date.available2015-05-03T14:15:41Zen
dc.date.issued2015-04-25en
dc.identifier.citationBiodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridge 2015 Deep Sea Research Part II: Topical Studies in Oceanographyen
dc.identifier.issn09670645en
dc.identifier.doi10.1016/j.dsr2.2015.04.013en
dc.identifier.urihttp://hdl.handle.net/10754/552105en
dc.description.abstractKnowledge on quantitative faunal distribution patterns of hydrothermal communities in slow-spreading vent fields is particularly scarce, despite the importance of these ridges in the global mid-ocean system. This study assessed the composition, abundance and diversity of 12 benthic faunal assemblages from various locations on the Eiffel Tower edifice (Lucky Strike vent field, Mid-Atlantic Ridge) and investigated the role of key environmental conditions (temperature, total dissolved iron (TdFe), sulfide (TdS), copper (TdCu) and pH) on the distribution of macro- and meiofaunal species at small spatial scales (< 1 m). There were differences in macro- and meiofaunal community structure between the different sampling locations, separating the hydrothermal community of the Eiffel Tower edifice into three types of microhabitats: (1) cold microhabitats characterized by low temperatures (<6 °C), high TdCu (up to 2.4±1.37 µmol l−1), high pH (up to 7.34±0.13) but low TdS concentrations (<6.98±5.01 µmol l−1); (2) warm microhabitats characterized by warmer temperatures (>6 °C), low pH (<6.5) and high TdS/TdFe concentrations (>12.8 µmol l−1/>1.1 µmol l−1 respectively); and (3) a third microhabitat characterized by intermediate abiotic conditions. Environmental conditions showed more variation in the warm microhabitats than in the cold microhabitats. In terms of fauna, the warm microhabitats had lower macro- and meiofaunal densities, and lower richness and Shannon diversity than the cold microhabitats. Six macrofaunal species (Branchipolynoe seepensis, Amathys lutzi, Bathymodiolus azoricus, Lepetodrilus fucensis, Protolira valvatoides and Chorocaris chacei) and three meiofaunal taxa (Paracanthonchus, Cephalochaetosoma and Microlaimus) were identified as being significant indicator species/taxa of particular microhabitats. Our results also highlight very specific niche separation for copepod juveniles among the different hydrothermal microhabitats. Some sampling units showed unique faunal composition and increased beta diversity on the Eiffel Tower edifice. Contrary to what was expected, the highest beta diversity was not associated with a particular microhabitat type, but rather with location on the central part of the edifice where other structuring factors may predominate.en
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0967064515001290en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Deep Sea Research Part II: Topical Studies in Oceanography. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Deep Sea Research Part II: Topical Studies in Oceanography, 25 April 2015. DOI: 10.1016/j.dsr2.2015.04.013en
dc.titleBiodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridgeen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalDeep Sea Research Part II: Topical Studies in Oceanographyen
dc.eprint.versionPost-printen
dc.contributor.institutionIfremer, Centre de Bretagne, REM/EEP, Laboratoire Environnement Profond, Institut Carnot EDROME, F-29280 Plouzané, Franceen
dc.contributor.institutionDépartement de sciences biologiques, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canadaen
dc.contributor.institutionMarine Biology Section, Department of Biology, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgiumen
dc.contributor.institutionDepartment of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1–12 Moscow 119992, Russiaen
kaust.authorde Busserolles, Fannyen
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