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Species and size selectivity in a Portuguese multispecies artisanal long-line fishery

1996Journal article Restricted
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dc.contributor.authorErzini, Karim
dc.contributor.authorGonçalves, J. M. S.
dc.contributor.authorBentes, L.
dc.contributor.authorLino, P. G.
dc.contributor.authorCruz, J.
dc.date.accessioned2016-12-14T16:22:29Z
dc.date.available2016-12-14T16:22:29Z
dc.date.issued1996
dc.description.abstractThe species and size selectivity of long-lines using small hooks were studied off the south coast of Portugal using ''Mustad'' brand round bent, flatted sea hooks (Quality 2316 DT) numbers 15, 13, and 11 baited with razor shell clam (Ei-isis siliqua). Hook numbers 13 and 11 are 49 and 109% larger respectively than number 15 hooks in terms of overall size (maximum width x maximum length). A total of 39 900 hooks were fished in 45 sets and 35 species of fish and cephalopods were caught. As a group, 13 species of sea breams (Sparidae) dominated the catch by numbers (58%) and weight (73%). Six species of sea breams, along with the greater weever fish (Trachinus draco) accounted for 81% of the total catch by weight, with the common or white sea bream (Diplodus sargus) bring the most important (29%). Catch size distributions by hook size were, in general, highly overlapped for all species and hook size had little apparent effect on minimum size at capture. All hooks caught a wide range of sizes per species, but the catch rate (number of fish per 100 hooks) was significantly lower for the largest hook. Except for the black sea bream (Spondyliosoma cantharus), capture of illegally sized or immature fish was minimal. Small increases in average size with hook size were evident for four species: Diplodus sargus, D. vulgaris, Lithognathus mormyrus and Serranus cabrilla. No differences in size selectivity were detected for Boops boops, D. annularis, Spondyliosoma cantharus and Trachinus draco. A skew-normal model adequately described differences in size selectivity in five of six species. (C) 1996 International Council for the Exploration of the Sea
dc.identifier.doi10.1006/jmsc.1996.0102
dc.identifier.issn1054-3139
dc.identifier.otherAUT: KER00543; JGO02808;
dc.identifier.urihttp://hdl.handle.net/10400.1/8832
dc.language.isoeng
dc.peerreviewedyes
dc.publisherOxford University Press
dc.relation.isbasedonWOS:A1996VQ94900008
dc.titleSpecies and size selectivity in a Portuguese multispecies artisanal long-line fishery
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage819
oaire.citation.issue5
oaire.citation.startPage811
oaire.citation.titleIces Journal Of Marine Science
oaire.citation.volume53
person.familyNameErzini
person.familyNameGonçalves
person.familyNameBentes
person.familyNameLino
person.givenNameKarim
person.givenNameJorge Manuel Santos
person.givenNameLuis
person.givenNamePedro
person.identifier356846
person.identifier849968
person.identifier.ciencia-idD917-7133-341A
person.identifier.ciencia-id1013-ED6A-65EB
person.identifier.ciencia-idC619-63A6-6076
person.identifier.ciencia-id3616-498C-1963
person.identifier.orcid0000-0002-1411-0126
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person.identifier.orcid0000-0001-6884-2886
person.identifier.orcid0000-0002-0214-6172
person.identifier.ridM-5216-2013
person.identifier.ridG-5206-2011
person.identifier.ridD-5057-2009
person.identifier.ridB-6065-2008
person.identifier.scopus-author-id7004015948
person.identifier.scopus-author-id7103326116
person.identifier.scopus-author-id6603195176
person.identifier.scopus-author-id6701691255
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication.latestForDiscovery6569b202-4643-45ec-9861-9fd8d5f09601

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