Multi-element stable isotope geochemistry and arsenic speciation of hydrothermal vent fauna (Alviniconcha sp., Ifremeria nautilei and Eochionelasmus ohtai manusensis), Manus Basin, Papua New Guinea

dc.contributor.authorBojar, Ana-Voica
dc.contributor.authorLecuyer, Christophe
dc.contributor.authorMaher, William
dc.contributor.authorBojar, Hans-Peter
dc.contributor.authorFourel, Francois
dc.contributor.authorVasile, Stefan
dc.date.accessioned2024-08-21T06:17:01Z
dc.date.available2024-08-21T06:17:01Z
dc.date.issued2023
dc.date.updated2024-05-12T08:15:34Z
dc.description.abstractDeep-sea hydrothermal vent communities, revealing patterns of niche partitioning, live in a limited area characterised by sharp physico-chemical gradients. In this study, we investigated carbon, sulfur, nitrogen stable isotopes as well as arsenic (As) speciations and concentrations for two snails (Alviniconcha sp. and Ifremeria nautilei) and a crustacean, (Eochionelasmus ohtai manusensis), occupying distinct niches in the hydrothermal vent field of the Vienna Woods, Manus Basin, Western Pacific. δ13C values of Alviniconcha sp. (foot), I. nautilei (foot and chitin) and E. o. manusensis (soft tissue) are similar, from −28 to −33‰ (V-PDB). The δ15N values of Alviniconcha sp. (foot and chitin), I. nautilei (foot and chitin) and E. o. manusensis (soft tissue) range from 8.4 to 10.6‰. The δ34S values of Alviniconcha sp. (foot and chitin), I. nautilei (foot) and E. o. manusensis (soft tissue) range from 5.9 to 11.1‰. Using stable isotopes, for the first time, we inferred a Calvin-Benson (RuBisCo) metabolic pathway for Alviniconcha sp. along with the presence of γ-Proteobacteria symbionts for the Vienna Woods communities. For I. nautilei, a feeding pattern is proposed with γ-Proteobacteria symbiosis and a Calvin–Benson–Bassham diet with mixotrophic feeding. E. ohtai manusensis is filtering bacteria with a CBB feeding strategy, with δ15N values indicating possible higher position in the trophic chain. Arsenic concentrations in the dry tissue of Alviniconcha (foot), I. nautilei (foot) and E. o. manusensis (soft tissue) are high, from 4134 to 8478 μg/g, with inorganic As concentrations of 607, 492 and 104 μg/g, respectively and dimethyl arsenic (DMA) concentrations of 11.12, 0.25 and 11.2 μg/g, respectively. Snails occurring in a vent proximal position have higher As concentration than barnacles, a pattern not observed for S concentrations. Arsenosugars were not put in evidence indicating that the available organic material for the vent organisms are not surface derived.
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0045-6535
dc.identifier.urihttps://hdl.handle.net/1885/733715068
dc.language.isoen_AUen_AU
dc.provenanceThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
dc.publisherPergamon-Elsevier Ltd
dc.rights© 2023 The Authors. Published by Elsevier Ltd.
dc.rights.licenseCreative Commons Attribution 4.0 International License
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceChemosphere
dc.subjectStable isotopes
dc.subjectAs speciation
dc.subjectMetabolic pathways
dc.subjectManus basin
dc.subjectPacific ocean
dc.titleMulti-element stable isotope geochemistry and arsenic speciation of hydrothermal vent fauna (Alviniconcha sp., Ifremeria nautilei and Eochionelasmus ohtai manusensis), Manus Basin, Papua New Guinea
dc.typeJournal article
dcterms.accessRightsOpen Access
local.bibliographicCitation.lastpage11
local.bibliographicCitation.startpage1
local.contributor.affiliationBojar, Ana-Voica, Salzburg University
local.contributor.affiliationLecuyer, Christophe, Universite Claude Bernard Lyon 1
local.contributor.affiliationMaher, William, College of Science, ANU
local.contributor.affiliationBojar, Hans-Peter, Universalmuseum Joanneum
local.contributor.affiliationFourel, Francois, Universite Claude Bernard Lyon 1
local.contributor.affiliationVasile, Stefan, University of Bucharest
local.contributor.authoremailu1817648@anu.edu.au
local.contributor.authoruidMaher, William, u1817648
local.description.notesImported from ARIES
local.identifier.absfor300404 - Crop and pasture biochemistry and physiology
local.identifier.absfor410501 - Environmental biogeochemistry
local.identifier.ariespublicationa383154xPUB40685
local.identifier.citationvolume324
local.identifier.doi10.1016/j.chemosphere.2023.138258
local.identifier.scopusID2-s2.0-85149833333
local.identifier.uidSubmittedBya383154
local.publisher.urlhttps://www.sciencedirect.com/
local.type.statusPublished Version
publicationvolume.volumeNumber324

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