Publication
Semi-pelagic Longline and Trammel Net Elasmobranch Catches in Southern Portugal: Catch Composition, Catch Rates and Discards
| dc.contributor.author | Coelho, Rui | |
| dc.contributor.author | Erzini, K | |
| dc.contributor.author | Bentes, Luis | |
| dc.contributor.author | Correia, Carla | |
| dc.contributor.author | Lino, Pedro | |
| dc.contributor.author | Monteiro, Pedro | |
| dc.contributor.author | Ribeiro, Joaquim | |
| dc.contributor.author | Gonçalves, J. M. S. | |
| dc.date.accessioned | 2017-01-18T13:04:28Z | |
| dc.date.available | 2017-01-18T13:04:28Z | |
| dc.date.issued | 2004 | |
| dc.description.abstract | In Portugal, elasmobranch landings have decreased substantially in recent years. In this work, elasmobranch catches in semi-pelagic longlines (1997 and 1998) were compared with those in trammel nets (2000) in the Algarve, southern Portugal areas. In the semi-pelagic longline fi shery, 7 elasmobranch species represented 33.4% (2 185 specimens) of the total fi sh catches. Among the elasmobranch species, the most abundant were Galeus melastomus (63.3%), Etmopterus pusillus (21.7%) and Scyliorhinus canicula (14.2%). Most of these elasmobranchs were discarded (68.3% in total). In the trammel net fi shery, 16 different elasmobranch species represented 4.3% (597 specimens) of total fi sh catches and the most important species were Raja undulata (43.6%) and S. canicula (10.2%). The majority of the elasmobranchs caught in trammel nets had commercial value, and only 5.4% were discarded. In both fi sheries, intra-specifi c catch rates varied with depth. Length-frequency distributions for the only species with relatively high catches in both fi sheries, S. canicula, showed that, in general, trammel nets catch larger specimens and in a narrower length range than do longlines. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.issn | 0250-6408 | |
| dc.identifier.other | AUT: RMS01092; KER00534; JGO02808 | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/8954 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Northwest Atlantic Fisheries Organization | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Catch composition | pt_PT |
| dc.subject | Catch rate | pt_PT |
| dc.subject | Discard | pt_PT |
| dc.subject | Longline | pt_PT |
| dc.subject | Portugal | pt_PT |
| dc.subject | Trammel net | pt_PT |
| dc.title | Semi-pelagic Longline and Trammel Net Elasmobranch Catches in Southern Portugal: Catch Composition, Catch Rates and Discards | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 7 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | Journal of the Northwest Atlantic Fishery Science | pt_PT |
| oaire.citation.volume | 35 | pt_PT |
| person.familyName | Coelho | |
| person.familyName | Erzini | |
| person.familyName | Bentes | |
| person.familyName | Lino | |
| person.familyName | Monteiro | |
| person.familyName | Gonçalves | |
| person.givenName | Rui | |
| person.givenName | Karim | |
| person.givenName | Luis | |
| person.givenName | Pedro | |
| person.givenName | Pedro | |
| person.givenName | Jorge Manuel Santos | |
| person.identifier | 134638 | |
| person.identifier | 849968 | |
| person.identifier | 356846 | |
| person.identifier.ciencia-id | DC1A-20B7-EAC0 | |
| person.identifier.ciencia-id | D917-7133-341A | |
| person.identifier.ciencia-id | C619-63A6-6076 | |
| person.identifier.ciencia-id | 3616-498C-1963 | |
| person.identifier.ciencia-id | 1013-ED6A-65EB | |
| person.identifier.orcid | 0000-0003-3813-5157 | |
| person.identifier.orcid | 0000-0002-1411-0126 | |
| person.identifier.orcid | 0000-0001-6884-2886 | |
| person.identifier.orcid | 0000-0002-0214-6172 | |
| person.identifier.orcid | 0000-0003-1446-8256 | |
| person.identifier.orcid | 0000-0001-7704-8190 | |
| person.identifier.rid | C-1163-2008 | |
| person.identifier.rid | M-5216-2013 | |
| person.identifier.rid | D-5057-2009 | |
| person.identifier.rid | B-6065-2008 | |
| person.identifier.rid | D-4995-2009 | |
| person.identifier.rid | G-5206-2011 | |
| person.identifier.scopus-author-id | 56257111100 | |
| person.identifier.scopus-author-id | 7004015948 | |
| person.identifier.scopus-author-id | 6603195176 | |
| person.identifier.scopus-author-id | 6701691255 | |
| person.identifier.scopus-author-id | 7103326116 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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