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Description of the new species Sigambra nkossa (Annelida, Pilargidae), with an analysis of the distribution patterns of polychaetes associated with artificially hydrocarbon-enriched bottoms

dc.contributor.authorMartin, Daniel
dc.contributor.authorGil, João
dc.contributor.authorChaineau, Claude-Henri
dc.contributor.authorThorin, Sébastien
dc.contributor.authorLe Gall, Romain
dc.contributor.authorDutrieux, Eric
dc.date.accessioned2023-05-11T12:50:18Z
dc.date.available2023-05-11T12:50:18Z
dc.date.issued2022
dc.description.abstractThe monitoring of the N'Kossa offshore oil and gas fields in the Republic of Congo allowed us to assess the ecological traits of two polychaete species belonging to Sigambra (Annelida, Pilargidae). Sigambra parva occur in very low densities in all bottoms, except the most impacted, where it is totally absent; it is an undescribed species that reached >4,000 ind/m(2) in hydrocarbon-enriched sediments. Their distribution patterns are compared with those of other polychaetes, showing a range of affinities for hydrocarbon-enriched sediments in the N'Kossa region. Our results suggest that S. parva would be a representative of the original local fauna, while the species associated with artificial hydrocarbon-enriched sediments, including the other Sigambra, six more polychaetes and a bivalve, could be natively associated with natural hydrocarbon-enriched sediments, using the former as alternative habitats and as dispersal stepping stones. This ecological segregation, together with a careful morphological and morphometric analyses led us to describe the latter as a new species, namely Sigambra nkossa sp. nov. Moreover, morphometric analysis allowed us to discuss on the taxonomic robustness of the key morphological characters of S. nkossa sp. nov., as well as to emend the generic diagnosis of Sigambra to accommodate the new species.pt_PT
dc.description.sponsorshipConsolidated Research Group on Marine Benthic Ecology of the Generalitat de Catalunya; CSIC Intramural Project; CEAB-CSIC; CREOCEANpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.7717/peerj.13942pt_PT
dc.identifier.issn2167-8359
dc.identifier.urihttp://hdl.handle.net/10400.1/19557
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPeerJpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHydrocarbon enriched sedimentspt_PT
dc.subjectBenthic faunapt_PT
dc.subjectPolychaetespt_PT
dc.subjectPilargidspt_PT
dc.subjectNew speciespt_PT
dc.subjectGulf of Guineapt_PT
dc.titleDescription of the new species Sigambra nkossa (Annelida, Pilargidae), with an analysis of the distribution patterns of polychaetes associated with artificially hydrocarbon-enriched bottomspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPagee13942pt_PT
oaire.citation.titlePeerJpt_PT
oaire.citation.volume10pt_PT
person.familyNameGil
person.givenNameJoão
person.identifier.ciencia-idA519-5EDC-1B32
person.identifier.orcid0000-0002-1856-3333
person.identifier.scopus-author-id7201625624
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8462d152-0fd8-49a1-98c2-ec2ed5179446
relation.isAuthorOfPublication.latestForDiscovery8462d152-0fd8-49a1-98c2-ec2ed5179446

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