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Reproductive cycle of the commercially harvested sea urchin (Paracentrotus lividus) along the western coast of Portugal

2019-03Journal article Restricted access
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dc.contributor.authorMachado, Ines
dc.contributor.authorMoura, Paula
dc.contributor.authorPereira, Fabio
dc.contributor.authorVasconcelos, Paulo
dc.contributor.authorGaspar, Miguel
dc.date.accessioned2020-07-24T10:52:44Z
dc.date.available2020-07-24T10:52:44Z
dc.date.issued2019-03
dc.description.abstractHarvested populations of the sea urchin (Paracentrotus lividus) from the northwestern (Carreco) and southwestern (Aljezur) coasts of Portugal were surveyed to describe the species reproductive cycle and assess possible relationships with geographical location and seawater temperature. Individuals were sampled monthly to analyze gonad histology, mean gonadal index (GI), and gonadosomatic index (GSI) during 2 consecutive years (November 2010-November 2012). Both populations presented an annual reproductive cycle, with synchronous gonad maturation and gamete release between sexes. Gonad maturation occurred throughout autumn-winter, followed by a single but prolonged spawning season during spring-summer. The duration of the spawning season displayed a latitudinal gradient likely related to the north-south increasing trend in seawater temperature, with the northwestern population (Carreco) exhibiting a shorter spawning period compared to the southwestern population (Aljezur). The timing and duration of the spawning season was compared with several populations throughout the distributional range of P. lividus in the Atlantic Ocean and Mediterranean Sea. In the population from Carreco, the size at first sexual maturity (test diameter = 35.9 mm) was considerably smaller than the minimum conservation reference size (MCRS) of 50 mm test diameter legally established for P. lividus. This study confirms that sustainable exploitation depends on harvesters' awareness of and compliance with the MCRS and provides useful information for the eventual establishment of a closed season in the harvesting of P. lividus.
dc.description.sponsorshipFisheries Operational Programme
dc.description.sponsorshipEuropean Maritime and Fisheries Fund
dc.description.sponsorshipFisheries Operational Programme European Maritime and Fisheries Fund
dc.identifier.doi10.1111/ivb.12238
dc.identifier.issn1077-8306
dc.identifier.issn1744-7410
dc.identifier.urihttp://hdl.handle.net/10400.1/14399
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationGESTÃO DO RECURSO, INCIDÊNCIA DE IMPOSEX, POTENCIAL DE MOLUSCICULTURA E VIABILIDADE DE REPOVOAMENTO DA CANILHA BOLINUS BRANDARIS NA RIA FORMOSA
dc.subjectDistribution patterns
dc.subjectAlgal sssemblages
dc.subjectGonadal growth
dc.subjectArbacia lixula
dc.subjectEchinoidea
dc.subjectEchinodermata
dc.subjectVariability
dc.subjectFishery
dc.subjectRecruitment
dc.subjectHabitat
dc.titleReproductive cycle of the commercially harvested sea urchin (Paracentrotus lividus) along the western coast of Portugal
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGESTÃO DO RECURSO, INCIDÊNCIA DE IMPOSEX, POTENCIAL DE MOLUSCICULTURA E VIABILIDADE DE REPOVOAMENTO DA CANILHA BOLINUS BRANDARIS NA RIA FORMOSA
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F26348%2F2006/PT
oaire.citation.endPage54
oaire.citation.issue1
oaire.citation.startPage40
oaire.citation.titleInvertebrate Biology
oaire.citation.volume138
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
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication6185b7ee-acc9-4a7e-a7db-37384e94f4df
relation.isAuthorOfPublication.latestForDiscovery6185b7ee-acc9-4a7e-a7db-37384e94f4df
relation.isProjectOfPublicationc1c61c4c-dbaf-43f1-80d8-363737ee33d9
relation.isProjectOfPublication.latestForDiscoveryc1c61c4c-dbaf-43f1-80d8-363737ee33d9

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