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Biology of the common cockle Cerastoderma edule (Linnaeus, 1758) in Ria de Aveiro (NW Portugal): Implications for fisheries management

2021-05Journal article Restricted access
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dc.contributor.authorMaia, Francisco
dc.contributor.authorBarroso, Carlos M.
dc.contributor.authorGaspar, Miguel
dc.date.accessioned2021-09-08T10:57:55Z
dc.date.available2021-09-08T10:57:55Z
dc.date.issued2021-05
dc.description.abstractThis study reports the reproductive cycle, condition index, size at first maturity, growth and the morphometric relationships of the common cockle Cerastoderma edule in Ria de Aveiro (NW Portugal), fundamental knowledge in fisheries management planning and ecosystem conservation. The reproductive cycle was monitored for a period of two years, from January 2013 to December 2014. Spawning extended from June to October, with a peak in the summer months (July to September). The condition index showed a seasonal pattern which appear related to food availability and gametogenic cycle. Sexual maturity was attained at a shell length of 18.6 mm during the first year of life, which stands below the minimum landing size currently in force (25 mm). The von Bertalanffy growth equation was based on size-at-age data obtained from the microscopic analysis of growth rings in sectioned shells: Lt = 40.7[1-e -0.74(t-0.30)]. The morphometric relationships between shell dimensions (length, height and width) were studied in order to understand the effects of ontogenetic changes in cockles` shell morphology, an information that is useful to improve the selectivity of the fishing gears and the size-sorting devices. Some management strategies for the Ria de Aveiro cockle fishery were proposed.
dc.identifier.doi10.1016/j.seares.2021.102024
dc.identifier.issn1385-1101
dc.identifier.urihttp://hdl.handle.net/10400.1/16978
dc.language.isoeng
dc.peerreviewedyes
dc.publisherELSEVIER
dc.subjectCommon cockle
dc.subjectReproductive cycle
dc.subjectCondition index
dc.subjectSize at first maturity
dc.subjectGrowth and morphometry
dc.subjectFishing management proposals
dc.subject.otherMarine & Freshwater Biology; Oceanography
dc.titleBiology of the common cockle Cerastoderma edule (Linnaeus, 1758) in Ria de Aveiro (NW Portugal): Implications for fisheries management
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/157977/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/157679/PT
oaire.citation.startPage102024
oaire.citation.titleJournal of Sea Research
oaire.citation.volume171
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameManuel da Silva Rodrigues Maia
person.familyNameGaspar
person.givenNameFrancisco
person.givenNameMiguel
person.identifier.ciencia-idAF14-8C8F-3CE4
person.identifier.ciencia-idF719-07AC-E41F
person.identifier.orcid0000-0002-8526-5440
person.identifier.orcid0000-0001-9245-8518
person.identifier.ridF-5398-2011
person.identifier.scopus-author-id23501123500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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