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Influence of mesh size and tooth spacing on the proportion of damaged organisms in the catches of the Portuguese clam dredge fishery

2002Journal article Open access
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dc.contributor.authorGaspar, Miguel
dc.contributor.authorMiguel de Sousa Leitão, Francisco
dc.contributor.authorSantos, M. N.
dc.contributor.authorSobral, M.
dc.contributor.authorChícharo, Luís
dc.contributor.authorChicharo, Maria Alexandra Teodosio
dc.contributor.authorMonteiro, C. C.
dc.date.accessioned2013-02-26T15:42:40Z
dc.date.available2013-02-26T15:42:40Z
dc.date.issued2002
dc.date.updated2013-02-19T16:16:46Z
dc.description.abstractExperiments to assess the effect of mesh size and tooth spacing on the catch of Spisula solida were undertaken with the aim of determining an optimal combination of these two characteristics to minimize the dredging impact on by-catch species. However, our data showed that tooth spacing, mesh size and the interactions between these two factors did not affect the number of damaged macrofaunal individual’s caught. This may be because infauna entered the dredge without passing through the space between the teeth and the mesh of the net bag closed as it was stretched by the weight of the contents, preventing the escape of the caught individuals. Thus, independently of mesh size, when the dredge is towed over the sediment, the retained individuals were injured due to abrasion between animals and/or between animals and debris. The severity of injuries inflicted by dredging on different macrobenthic species is related to their morphology and fragility.por
dc.identifier.citationGaspar, M. B.; Leitao, F.; Santos, M. N.; Sobral, M.; Chicharo, L. M. Z.; Chicharo, A.; Monteiro, C. C. Influence of mesh size and tooth spacing on the proportion of damaged organisms in the catches of the Portuguese clam dredge fishery, Ices Journal of Marine Science, 59, 6, 1228-1236, 2002.por
dc.identifier.issn1054-3139
dc.identifier.otherAUT: MCH00377;
dc.identifier.urihttp://hdl.handle.net/10400.1/2484
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectClam fisherypor
dc.subjectDirect mortalitypor
dc.subjectDredgepor
dc.subjectGear impactpor
dc.subjectTooth spacingpor
dc.subjectMeshpor
dc.titleInfluence of mesh size and tooth spacing on the proportion of damaged organisms in the catches of the Portuguese clam dredge fisherypor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1236por
oaire.citation.issue6por
oaire.citation.startPage1228por
oaire.citation.titleIces Journal of Marine Sciencepor
oaire.citation.volume59por
person.familyNameGaspar
person.familyNameLeitão
person.familyNameChicharo
person.familyNameTeodosio
person.givenNameMiguel
person.givenNameFrancisco
person.givenNameLuis
person.givenNameMaria
person.identifier620214
person.identifier.ciencia-idF719-07AC-E41F
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0001-9245-8518
person.identifier.orcid0000-0003-4983-9782
person.identifier.orcid0000-0002-4933-2300
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridF-5398-2011
person.identifier.ridM-3980-2013
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id23501123500
person.identifier.scopus-author-id7003991946
person.identifier.scopus-author-id6602881426
person.identifier.scopus-author-id56196396700
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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