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Decapod larvae distribution and species composition off the southern Portuguese coast

2017-12Journal article Restricted access
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dc.contributor.authorPochelon, Patricia N.
dc.contributor.authorPires, Rita F. T.
dc.contributor.authorDubert, Jesus
dc.contributor.authorNolasco, Rita
dc.contributor.authorSantos, A. Miguel P.
dc.contributor.authorQueiroga, Henrique
dc.contributor.authordos Santos, Antonina
dc.date.accessioned2019-11-20T15:07:09Z
dc.date.available2019-11-20T15:07:09Z
dc.date.issued2017-12
dc.description.abstractFor decapod crustaceans, the larval phase is the main responsible for dispersal, given the direct emission from adult habitats into the water column. Circulation patterns and behavioural mechanisms control the dispersal distance and connectivity between different areas. Information on larval distribution and abundance is required to predict the size and location of breeding populations, and correctly manage marine resources. Spatial distribution and abundance data of decapod larvae, and environmental parameters were assessed in winter surveys off the southern Portuguese coast. To better understand the oceanic structures driving larval distribution patterns, in situ physical parameters were measured and a hydrodynamical model used. Inter-annual, cross-shore and alongshore differences on decapod larvae distribution were found. Brachyuran crabs dominated the samples and similar taxa composition was observed in the most dynamic areas. Coastal taxa dominated the nearshore survey and were almost absent in the more offshore one, that registered much lower abundances. An upwelling front allowed a clear cross-shore species separation, also evident in the abundance values and number of taxa. Hydrodynamical conditions and adult habitats were the main factors explaining the observed patterns. Important missing information to understand the distribution patterns of decapod larval communities and the mechanisms behind them is given for the region.
dc.description.sponsorshipPortuguese Science Foundation (Fundacao para a Ciencia e a Tecnologia - FCT) [SFRH/BD/27615/2006]
dc.description.sponsorshipresearch grant LobAssess-Norway lobster stocks in Portugal: Basis for assessment using information on larval production and ecology [POCI/BIA-BDE/59426/2004]
dc.description.sponsorshipBIOMETORE project ("Biodiversity in seamounts: the Madeira-Tore and Great Meteor", EEA) [PT02]
dc.description.sponsorshipFCT - Foundation for Science and Technology [UID/Multi/04326/2013]
dc.identifier.doi10.1016/j.csr.2017.10.009
dc.identifier.issn0278-4343
dc.identifier.issn1873-6955
dc.identifier.urihttp://hdl.handle.net/10400.1/12905
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPergamon-Elsevier Science Ltd
dc.subjectUpwelling ecosystem
dc.subjectPopulation connectivity
dc.subjectHorizontal distribution
dc.subjectVertical migration
dc.subjectContinental-hself
dc.subjectDispersal
dc.subjectTransport
dc.subjectSurface
dc.subjectOcean
dc.subjectGulf
dc.titleDecapod larvae distribution and species composition off the southern Portuguese coast
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage61
oaire.citation.startPage53
oaire.citation.titleContinental Shelf Research
oaire.citation.volume151
person.familyNameSantos
person.givenNameA. Miguel P.
person.identifier290283
person.identifier.ciencia-id541E-93D0-BFC3
person.identifier.orcid0000-0001-9401-3504
person.identifier.ridG-6030-2011
person.identifier.scopus-author-id25926746100
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication847a80b0-7a6f-4b19-baea-4514c6908f65
relation.isAuthorOfPublication.latestForDiscovery847a80b0-7a6f-4b19-baea-4514c6908f65

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