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Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca : Bivalvia): a preliminary contribution to fishery sustainability

dc.contributor.authorJoaquim, Sandra
dc.contributor.authorGaspar, Miguel
dc.contributor.authorMatias, Domitilia
dc.contributor.authorBen-Hamadou, Radhouan
dc.contributor.authorArnold, William S.
dc.date.accessioned2018-12-07T14:53:11Z
dc.date.available2018-12-07T14:53:11Z
dc.date.issued2008-01
dc.description.abstractPopulations of commercially important bivalves along the coast of Portugal are depleted as a consequence of natural and anthropogenic causes. A pilot experiment was designed to determine the feasibility of transplanting individuals from natural clam beds to a closed fishing area in an effort to rebuild relatively high-density patches of Spisula solida. For this purpose, clams were equally partitioned into two groups (undersize and legal clams) and transplanted at a density of 40 clams m(-2) into two areas 50 m(2). Transplanted and control clams were sampled to estimate survival, condition index, biochemical composition, and reproductive condition. Generally, the physiological condition of clams was not affected by the method of transplanting. One year after transplanting, survival was 45%. The increase in local abundance of mature clams should facilitate successful fertilization and increase the residual reproductive value of each clam relative to its pre-transplant value. Transplanting undersize clams may be more advantageous because they are more likely to spawn at least once before harvest. The experiments demonstrate that spawner transplants may strengthen S. solida populations and can be used in stock-enhancement programmes which, in conjunction with effective management measures, can contribute to the sustainability of the S. solida fishery.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1093/icesjms/fsm167
dc.identifier.issn1054-3139
dc.identifier.urihttp://hdl.handle.net/10400.1/11390
dc.language.isoeng
dc.peerreviewedyes
dc.publisherOxford University Press
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGross biochemical-composition
dc.subjectHard clam
dc.subjectStock enhancement
dc.subjectCondition index
dc.subjectPhilippinarum
dc.subjectDensity
dc.subjectFlorida
dc.subjectBay
dc.subjectRestoration
dc.subjectPopulations
dc.titleRebuilding viable spawner patches of the overfished Spisula solida (Mollusca : Bivalvia): a preliminary contribution to fishery sustainability
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage64
oaire.citation.issue1
oaire.citation.startPage60
oaire.citation.titleICES Journal of Marine Science
oaire.citation.volume65
person.familyNameGaspar
person.familyNameBen-Hamadou
person.givenNameMiguel
person.givenNameRadhouan
person.identifier.ciencia-idF719-07AC-E41F
person.identifier.orcid0000-0001-9245-8518
person.identifier.orcid0000-0003-2686-5822
person.identifier.ridF-5398-2011
person.identifier.ridF-8192-2011
person.identifier.scopus-author-id23501123500
person.identifier.scopus-author-id15764751100
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication6185b7ee-acc9-4a7e-a7db-37384e94f4df
relation.isAuthorOfPublication2f32d19a-b0ef-4021-a7da-e67ce80fb319
relation.isAuthorOfPublication.latestForDiscovery6185b7ee-acc9-4a7e-a7db-37384e94f4df

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