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Ichthyofaunal community assemblage and spatiotemporal patterns in the Bons Sinais Estuary, Mozambique: Ecological drivers and conservation implications

2025-12Artigo científico Acesso restrito
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg13:Ação Climática
dc.contributor.authorMocuba, Jeremias
dc.contributor.authorFlorêncio dos Santos Costa, Eudriano
dc.contributor.authorTeodosio, Maria
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2026-03-04T11:32:22Z
dc.date.available2026-03-04T11:32:22Z
dc.date.issued2025-12
dc.description.abstractUnderstanding the ichthyofaunal assemblage of estuarine and adjacent coastal ecosystems is important for managing fishery resources and implementing conservation actions. This study explored the structure, diversity, and spatial-temporal variations of the ichthyofauna in the Bons Sinais Estuary (Mozambique) and the influence of environmental parameters. Fish sampling was conducted in the lower, middle, and upper zones using beach seine (active) and chicocota (fixed) gears in January 2020 and monthly from July 2020 to June 2021. The study identified 102 fish species, mostly of marine origin, belonging to 51 families. The most abundant families were Sciaenidae, Engraulidae, Clupeidae, Mugilidae, and Gobiidae, contributing over 78 % of the total catch. The most dominant species were Thryssa vitrirostris, Johnius dussumieri, Johnius dorsalis, Sardinella albella, Mugil cephalus, and Hilsa kelee, which accounted for more than half (52.43 %) of the abundance and 48.27 % of the biomass. The study found an ichthyofaunal community characterised by significant spatial variations, primarily influenced by salinity. The dominance of marine species in the lower and middle estuary contrasted with freshwater species in the upper zone. Dominant species showed spatial variations in abundance and biomass, but fewer showed seasonal variations. The middle estuary exhibited the highest species richness, diversity, and average abundance, while the lower zone had the highest biomass average. Threatened species, including Oreochromis mossambicus, comprised 3.4 % of the total abundance. These findings highlight the need for sustainable exploitation of fisheries resources and preserving the ecological functions of the Bons Sinais Estuary, which is important for resident and migratory species.eng
dc.identifier.doi10.1016/j.rsma.2025.104344
dc.identifier.issn2352-4855
dc.identifier.urihttp://hdl.handle.net/10400.1/28320
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofRegional Studies in Marine Science
dc.rights.uriN/A
dc.subjectEstuarine fish
dc.subjectDiversity
dc.subjectAssemblage
dc.subjectEnvironmental parameters
dc.titleIchthyofaunal community assemblage and spatiotemporal patterns in the Bons Sinais Estuary, Mozambique: Ecological drivers and conservation implicationseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/04326/2020
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.startPage104344
oaire.citation.titleRegional Studies in Marine Science
oaire.citation.volume89
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMocuba
person.familyNameFlorêncio dos Santos Costa
person.familyNameTeodosio
person.familyNameLeitão
person.givenNameJeremias
person.givenNameEudriano
person.givenNameMaria
person.givenNameFrancisco
person.identifierhttps://scholar.google.com.br/citations?user=wbemx7IAAAAJ&hl=pt-BR
person.identifier620214
person.identifier.ciencia-idE117-86A4-32FF
person.identifier.ciencia-id051E-530F-6366
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.orcid0000-0002-7032-4233
person.identifier.orcid0000-0002-8139-2135
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-4983-9782
person.identifier.ridB-5077-2013
person.identifier.ridM-3980-2013
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7003991946
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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