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Macrofauna spatial differences within clam dredge-tracks and their implications for short-term fishing effect studies

dc.contributor.authorChícharo, Luís
dc.contributor.authorRegala, J.
dc.contributor.authorGaspar, M.
dc.contributor.authorAlves, Filipe
dc.contributor.authorChicharo, Maria Alexandra Teodosio
dc.date.accessioned2013-02-21T15:36:18Z
dc.date.available2013-02-21T15:36:18Z
dc.date.issued2002
dc.date.updated2013-02-19T16:17:39Z
dc.description.abstractIn situ observations of clam dredging showed that the effects of the dredge on the benthic macrofauna may not be constant during a tow. A sand buffer forms in front of the gear approximately 10m after the beginning of a tow, and this pushes the sediment partially aside.In this study, we analyse differences in abundance, the number of taxa present, diversity, and evenness within sections of dredge-tracks in a disturbed, fished area and a non-fished area along the southern coast of Portugal. These areas were sampled by divers before and after dredge-fishing activity. At each site, three dredge-tracks were produced. These tracks were divided in three longitudinal sections 1start, middle and end) and two transverse sections 1track and edge). Six quadrats were used to sample macrofauna in each section of every track and edge. Our results show differences exist in macro- faunal distribution and abundance across sections of a dredge-track. These differences should be considered in any assessment of the short-term ecological impact of dredges on benthic macrofauna
dc.identifier.citationChicharo, L. M. Z.; Regala, J.; Gaspar, M.; Alves, F.; Chicharo, A. Macrofauna spatial differences within clam dredge-tracks and their implications for short-term fishing effect studies, Fisheries Research, 54, 3, 349-353, 2002.por
dc.identifier.issn0165-7836
dc.identifier.otherAUT: MCH00377;
dc.identifier.urihttp://hdl.handle.net/10400.1/2394
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectFishing impactpor
dc.subjectDredgepor
dc.subjectMacrofaunapor
dc.subjectClam fisheriespor
dc.subjectEnsis-Siliquapor
dc.subjectNorth-seapor
dc.titleMacrofauna spatial differences within clam dredge-tracks and their implications for short-term fishing effect studiespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage353por
oaire.citation.issue3por
oaire.citation.startPage349por
oaire.citation.titleFisheries Researchpor
oaire.citation.volume54por
person.familyNameChicharo
person.familyNameAlves
person.familyNameTeodosio
person.givenNameLuis
person.givenNameFilipe
person.givenNameMaria
person.identifier1069549
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.ciencia-id1F1F-08D6-E54D
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0002-4933-2300
person.identifier.orcid0000-0003-3752-2745
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id6602881426
person.identifier.scopus-author-id15748099500
person.identifier.scopus-author-id56196396700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationd3ff8510-3be1-4a6a-abdd-eb671a819aef
relation.isAuthorOfPublication9e5e82fc-b9b0-44d4-84d1-b101810a1985
relation.isAuthorOfPublicationb39b2d6d-d6f5-4130-a9b9-4e7624d44676
relation.isAuthorOfPublication.latestForDiscovery9e5e82fc-b9b0-44d4-84d1-b101810a1985

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