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The Influence of environmental factors and fishing pressure on catch rates of diplodus vulgaris

2016-07Journal article Restricted
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dc.contributor.authorBaptista, Vânia
dc.contributor.authorCampos, Carlos J. A.
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2017-04-07T15:57:41Z
dc.date.available2017-04-07T15:57:41Z
dc.date.issued2016-07
dc.description.abstractThe variability of coastal marine resources has been linked to environmental variability but the impacts of artisanal nearshore fishing activity and environmental factors interact in different ways. Time series, Min/Max Autocorrelation Factor, Generalised Least Squares and Dynamic Factor Analyses models were applied to examine the role of environmental factors (SST, NAO Index, Upwelling Index, Wind Magnitude, Easterly Wind Component, Northerly Wind Component, Coastal River Discharges) and fisheries effort on commercial catch rates of Diplodus vulgaris in the Northwest, Southwest and South Portuguese coast. Environmental factors were found to affect short-term variations of catch rates with a time lag of 2 years, according to the regions and seasons. In the Northwest, autumn wind magnitude and summer river discharges were positively correlated with D. vulgaris catch rates. In the Southwest, D. vulgaris catch rates were negatively associated with variations in winter sea surface temperature. In the South, catch rates were positively associated with yearly westerly wind component and yearly, winter and autumn river discharges whilst negatively associated with the North Atlantic Oscillation (NAO) Index. These results indicate that both large-scale climatic patterns and local hydrological factors can have an influential role in determining the abundance of D. vulgaris stocks. Fishery assessment should therefore incorporate information on ecosystem and environmental effects to help managers to make informed decisions on how to best regulate coastal fisheries.
dc.identifier.doi10.1007/s12237-015-9990-y
dc.identifier.issn1559-2723
dc.identifier.urihttp://hdl.handle.net/10400.1/9786
dc.language.isoeng
dc.peerreviewedyes
dc.relationTRENDS IN PORTUGUESE COASTAL FISHERIES LANDINGS: THE ROLE OF HYDROLOGICAL PARAMETERS, OCEANOGRAPHIC FEATURES AND FISHERIES VARIABLES
dc.relation.isbasedonWOS:000367525900020
dc.titleThe Influence of environmental factors and fishing pressure on catch rates of diplodus vulgaris
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTRENDS IN PORTUGUESE COASTAL FISHERIES LANDINGS: THE ROLE OF HYDROLOGICAL PARAMETERS, OCEANOGRAPHIC FEATURES AND FISHERIES VARIABLES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F63935%2F2009/PT
oaire.citation.endPage272
oaire.citation.issue1
oaire.citation.startPage258
oaire.citation.titleEstuaries and Coasts
oaire.citation.volume39
person.familyNameBaptista
person.familyNameLeitão
person.givenNameVânia
person.givenNameFrancisco
person.identifier479502
person.identifier620214
person.identifier.ciencia-id0C1F-4F1B-256B
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.orcid0000-0002-1428-3334
person.identifier.orcid0000-0003-4983-9782
person.identifier.ridM-3980-2013
person.identifier.scopus-author-id55820032600
person.identifier.scopus-author-id7003991946
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublicationb138ce56-d033-450e-98a4-2bcb19f4a34e
relation.isAuthorOfPublication.latestForDiscoveryf8ce670b-477c-4002-97de-1950c5a7d3c2
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