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Diet and trophic position of two mackerel species in the archipelago of Madeira, Portugal

2021Journal article Restricted access
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dc.contributor.authorRomero, Joana
dc.contributor.authorVieira, Carolina
dc.contributor.authorGarrido, Susana
dc.contributor.authorHermida, Margarida
dc.contributor.authorCatry, Paulo
dc.contributor.authorFaria, Graça
dc.contributor.authorGranadeiro, J. P.
dc.date.accessioned2021-05-12T16:27:06Z
dc.date.available2021-05-12T16:27:06Z
dc.date.issued2021
dc.description.abstractThe Atlantic chub mackerel Scomber colias and the Blue jack mackerel Trachurus picturatus are two abundant species in the Macaronesia region which include the archipelago of Madeira, Portugal. Both are key species in the trophic web, being important prey for several local top predators, such as seabirds and marine mammals. However, little is known about their feeding ecology in oceanic environments. In this study, we describe the seasonal variation of the diet of S. colias and T. picturatus in the oceanic region of Madeira throughout a year. Visual inspection of stomach contents revealed that S. colias fed on a broader range of prey groups than T. picturatus, but for both species, zooplankton (particularly calanoid copepods) and fish were the most important food items. The diet of S. colias included a higher proportion of fish, namely Atlantic saury Scomberesox saurus and S. colias, than that of T. picturatus, that included mostly the Longspine snipefish Macroramphosus scolopax. Trachurus picturatus consumed a higher proportion of decapods and other copepods. Seasonal variation was found in the diet of both species, with zooplanktonic species being more important in colder months (February to April) for S. colias and during warm months (May to October) for T. picturatus. Their diet in other seasons were dominated by fish. Despite consuming similar prey, Carbon and Nitrogen stable isotope analysis of muscle of S. colias and T. picturatus showed little overlap in their diets, and T. picturatus showed higher δ15 N and a narrower isotopic niche.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.citationRomero, J., Vieira, C., Garrido, S., Hermida, M., Catry, P., Faria, G., Granadeiro, J. P. (2021). Diet and trophic position of two mackerel species in the archipelago of Madeira, Portugal. Journal of Fish Biology, doi: 10.1111/jfb.14766 This articlept_PT
dc.identifier.doi10.1111/jfb.14766pt_PT
dc.identifier.issn00221112
dc.identifier.urihttp://hdl.handle.net/10400.12/8128
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley-Blackwell Publishing Ltdpt_PT
dc.subjectCopepodspt_PT
dc.subjectDietpt_PT
dc.subjectMackerelspt_PT
dc.subjectStable isotopespt_PT
dc.subjectStomach contentspt_PT
dc.subjectTrophic positionpt_PT
dc.titleDiet and trophic position of two mackerel species in the archipelago of Madeira, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage37pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Fish Biologypt_PT
person.familyNameRomero
person.familyNameda Conceição Aragão Hermida
person.familyNameCatry
person.familyNameFaria
person.familyNamePedro Granadeiro
person.givenNameJoana
person.givenNameMargarida Dulce
person.givenNamePaulo
person.givenNameGraça
person.givenNameJosé
person.identifierSlxtKi4AAAAJ
person.identifier.ciencia-id001D-D381-FED4
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.ciencia-id3114-23EB-2E89
person.identifier.orcid0000-0001-8059-1282
person.identifier.orcid0000-0002-0259-109X
person.identifier.orcid0000-0003-3000-0522
person.identifier.orcid0000-0003-3215-2220
person.identifier.orcid0000-0002-7207-3474
person.identifier.ridN-2526-2017
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id7003725276
person.identifier.scopus-author-id6603758245
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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