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Predatory pelagic fishes of the Bijagós Archipelago (Guinea-Bissau) show high overlap in diets dominated by sardinella

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dc.contributor.authorCorreia, Edna
dc.contributor.authorGranadeiro, José Pedro
dc.contributor.authorRegalla, Aissa Said
dc.contributor.authorDias, Emanuel
dc.contributor.authorAlmeida, Ana Pereira
dc.contributor.authorCatry, Paulo
dc.date.accessioned2018-02-07T15:07:34Z
dc.date.available2018-02-07T15:07:34Z
dc.date.issued2017
dc.descriptionMaterial suplementar disponível em http://dx.doi.org/10.2989/1814232X.2017.1387605pt_PT
dc.description.abstractKnowledge of trophic interactions between the key components of marine communities is required to understand food-web dynamics and develop ecosystem-based management approaches. In West Africa, where fisheries sustain the livelihoods of a significant part of the human population, this understanding is even more urgent, especially in the face of rapidly expanding fisheries and some stock collapses in the region. We studied the feeding ecology of the Crevalle jack Caranx hippos, West African Spanish mackerel Scomberomorus tritor and Guinean barracuda Sphyraena afra in the Bijagós Archipelago, Guinea-Bissau. These are the most abundant pelagic predatory teleost fishes in the area, but little is known about their ecology despite being species with commercial and recreational value, and they likely also play an important role in various African coastal ecosystems. Our findings show a high degree of dietary overlap among these three predator species, despite some degree of segregation by prey size and type. All three predators depend on Sardinella maderensis as the most important prey, which together with other members of the Clupeidae represented 47–96% of the ingested prey items. There was little difference in the diets of the predators between the dry and rainy seasons. These novel findings suggest a ‘wasp-waist’-structured ecosystem in the Bijagós Archipelago in which S. maderensis is the central small-sized pelagic fish species, and stress the need for an ecosystem-based approach to fisheries management in the region, with precautionary measures taken to avoid the overexploitation of clupeids.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT); MAVA Foundation through a project granted to IBAP (Guinea-Bissau)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAfrican Journal of Marine Science, 39, 389-396. Doi: 10.2989/1814232X.2017.1387605pt_PT
dc.identifier.doi10.2989/1814232X.2017.1387605pt_PT
dc.identifier.issn1814-232X
dc.identifier.urihttp://hdl.handle.net/10400.12/6158
dc.language.isoporpt_PT
dc.peerreviewedyespt_PT
dc.publisherNational Inquiry Services Centrept_PT
dc.relationPROGRAMA DOUTORAL EM BIOLOGIA E ECOLOGIA DAS ALTERAÇÕES GLOBAIS - PROGRAMA DE TRABALHOS A DEFINIR ATÉ AO FINAL DO 1º ANO CONFORME FUNCIONAMENTO DO PROGRAMA DOUTORAL
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.2989/1814232X.2017.1387605pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectCaranx hippospt_PT
dc.subjectClupeidspt_PT
dc.subjectPredator–preypt_PT
dc.subjectSardinella maderensispt_PT
dc.subjectScomberomorus tritorpt_PT
dc.subjectSphyraena afrapt_PT
dc.subjectTrophic interactionspt_PT
dc.subjectWasp-waist ecosystempt_PT
dc.subjectWest Africapt_PT
dc.titlePredatory pelagic fishes of the Bijagós Archipelago (Guinea-Bissau) show high overlap in diets dominated by sardinellapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePROGRAMA DOUTORAL EM BIOLOGIA E ECOLOGIA DAS ALTERAÇÕES GLOBAIS - PROGRAMA DE TRABALHOS A DEFINIR ATÉ AO FINAL DO 1º ANO CONFORME FUNCIONAMENTO DO PROGRAMA DOUTORAL
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/PD%2FBD%2F52594%2F2014/PT
oaire.citation.conferencePlaceSouth Africapt_PT
oaire.citation.endPage396pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage389pt_PT
oaire.citation.titleAfrican Journal of Marine Sciencept_PT
oaire.citation.volume39pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStreamFARH
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationb45075bd-b8ca-49a6-bfec-2030828e7160
relation.isProjectOfPublication202b0d70-d3ca-4f41-91a1-204ab4855254
relation.isProjectOfPublicationc8b4b2d0-df92-4e84-9e43-c65edcadfeeb
relation.isProjectOfPublication.latestForDiscoveryb45075bd-b8ca-49a6-bfec-2030828e7160

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