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Season and seagrass: drivers of fish assemblage structure in the Banc d'Arguin, Mauritania

2025-10Journal article Open access
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dc.contributor.authorCompain, Philippe
dc.contributor.authorMallmann, Antonia
dc.contributor.authorSidina, Ebaye
dc.contributor.authorBourweiss, Mohammed
dc.contributor.authorBa, Mamadou Abdoul
dc.contributor.authorTalla, Ismaila Samba
dc.contributor.authorNiang, Alioune
dc.contributor.authorErzini, Karim
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2025-09-10T09:46:36Z
dc.date.available2025-09-10T09:46:36Z
dc.date.issued2025-10
dc.description.abstractThe Banc d’Arguin is the most ecologically significant coastal wetland of West Africa, a UNESCO Marine World Heritage area with one of the most extensive seagrass areas on Earth, used by many marine species as breeding and/or feeding habitat. However, little is known about the subtidal biodiversity supported by these extensive seagrass meadows. This study aimed to assess the influence of subtidal seagrass vegetation on fish assemblages, using beach seines to compare vegetated and unvegetated habitat. Effects of season and site were also assessed. We sampled fish communities predominantly composed of juveniles (98.7 %). Specifically, we analyzed differences in abundance, species richness, diversity, evenness, and assemblage structure across these factors. Season was the most influential driver of fish assemblage structure, even more than habitat, as expected in a nursery area where fish reproduce seasonally. Notably, four species - Atherina boyeri, Eucinostomus melanopterus, Mugil capurrii, and Chelon dumerili - accounted for 53.7 % and 49.2 % of the variation in assemblages across habitat and season, respectively. Moreover, four times as many species were found exclusively in seagrass habitats compared to unvegetated areas, underscoring the critical role of seagrass meadows in the Banc d’Arguin in supporting species that depend on such shallow sheltered habitats, enhancing regional biodiversity, and contributing to the sustainability of fisheries.eng
dc.description.sponsorshipAGAKHAN/540316524/2019; UIDP/04326/2020;
dc.identifier.doi10.1016/j.ecss.2025.109451
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10400.1/27680
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofEstuarine, Coastal and Shelf Science
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSeagrass
dc.subjectBiodiversity
dc.subjectRecruitment
dc.subjectJuvenile fish
dc.subjectEstuary ecology
dc.titleSeason and seagrass: drivers of fish assemblage structure in the Banc d'Arguin, Mauritaniaeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.startPage109451
oaire.citation.titleEstuarine, Coastal and Shelf Science
oaire.citation.volume324
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCompain
person.familyNameMallmann
person.familyNameErzini
person.familyNameSerrao
person.givenNamePhilippe
person.givenNameAntonia
person.givenNameKarim
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-idD917-7133-341A
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0002-6877-0859
person.identifier.orcid0009-0001-6578-2010
person.identifier.orcid0000-0002-1411-0126
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-5216-2013
person.identifier.scopus-author-id7004015948
person.identifier.scopus-author-id7004093604
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublication65c953c0-9c0e-4c8b-9671-1007659a2c10
relation.isAuthorOfPublicatione20f0e2d-3085-4c37-9e98-260dc9faddea
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relation.isAuthorOfPublication.latestForDiscoverye20f0e2d-3085-4c37-9e98-260dc9faddea
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