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Catches of Sepia officinalis in the small-scale cuttlefish trap fishery off the Algarve coast (southern Portugal)

2019Journal article Restricted access
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dc.contributor.authorPereira, Fábio
dc.contributor.authorVasconcelos, Paulo
dc.contributor.authorMoreno, Ana
dc.contributor.authorGaspar, Miguel
dc.date.accessioned2020-08-06T12:12:00Z
dc.date.available2020-08-06T12:12:00Z
dc.date.issued2019
dc.description.abstractThe present study reports a detailed description of the catches of cuttlefish (Sepia officinalis) in the trap fishery performed seasonally off the Algarve coast (southern Portugal). A total of 86 fishing surveys were performed during the fishing season (May-September) from 2009 to 2014, on sandy bottoms at bathymetrics ranging from 8 to 10 m depth. During the whole study period, fishing operations involved 6311 cuttlefish traps with a gear catch rate of 37% (frequency of traps with cuttlefish) and a mean of 0.9 S. officinalis caught per trap. A total of 5883 S. officinalis (1424.0 kg) were caught, being only recorded 282 dead individuals (mortality rate of 4.6%). The mean fishing yield (standardised CPUE's in number and weight) was 46.6 individuals and 11.3 kg 50 traps(-1). Overall, males (n = 3188) outnumbered females (n = 2695), producing a significant male-biased (1 M: 0.85 F) sex ratio. On average, females were significantly larger and heavier (124.4 +/- 22.9 mm ML; 253.1 +/- 148.8 g TW) than males (121.9 +/- 24.0 mm ML; 230.7 +/- 143.1 g TW). Accordingly, the length-frequency distributions displayed significant gender differences, with 89.6% of females and 85.8% of males accomplishing the MCRS (100 mm ML). This markedly seasonal, highly sustainable and low impacting small-scale fishery constitutes a locally important socio-economic activity during spring and summer. Undamaged catches and highly fresh individuals further contribute to the considerable price reached by S. officinalis caught using this artisanal fishing gear.pt_PT
dc.description.sponsorshipAgência financiadora European Union (EU) Fisheries Operational Programme (MAR 2020) European Maritime and Fisheries Fund (EMFF 2014-2020)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.fishres.2019.01.022pt_PT
dc.identifier.issn0165-7836
dc.identifier.urihttp://hdl.handle.net/10400.1/14625
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectCuttlefish trapspt_PT
dc.subjectFishing yieldpt_PT
dc.subjectCPUEpt_PT
dc.subjectSex-ratiopt_PT
dc.subjectSize-frequency distributionpt_PT
dc.subjectFishery management measurespt_PT
dc.titleCatches of Sepia officinalis in the small-scale cuttlefish trap fishery off the Algarve coast (southern Portugal)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage125pt_PT
oaire.citation.startPage117pt_PT
oaire.citation.titleFisheries Researchpt_PT
oaire.citation.volume214pt_PT
person.familyNameGaspar
person.givenNameMiguel
person.identifier.ciencia-idF719-07AC-E41F
person.identifier.orcid0000-0001-9245-8518
person.identifier.ridF-5398-2011
person.identifier.scopus-author-id23501123500
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6185b7ee-acc9-4a7e-a7db-37384e94f4df
relation.isAuthorOfPublication.latestForDiscovery6185b7ee-acc9-4a7e-a7db-37384e94f4df

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