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Long-term population status of two harvested intertidal grazers (Patella aspera and Patella candei), before (1996–2006) and after (2007–2017) the implementation of management measures

2019Journal article Open access
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dc.contributor.authorSousa, Ricardo
dc.contributor.authorVasconcelos, Joana
dc.contributor.authorHenriques, Paulo
dc.contributor.authorPinto, Ana Rita
dc.contributor.authorDelgado, João
dc.contributor.authorRiera, Rodrigo
dc.date.accessioned2022-07-06T09:26:58Z
dc.date.available2022-07-06T09:26:58Z
dc.date.issued2019
dc.description.abstractIntertidal limpets are subject to harvesting pressure in regions, e.g. oceanic islands, where marine organisms are a more accessible source of protein. These molluscs are very sensitive to human exploitation which often results on a decrease of their densities and an over-representation of immature individuals, because of the loss of large sized reproductive specimens. Two species of exploited limpets (Patella aspera and Patella candei) were assessed throughout 21 years, before (1996–2006) and after (2007–2017) the implementation of conservation measures for their sustainable management in Madeira (North-eastern Atlantic Ocean). Different levels of anthropogenic pressure were also taken in account in this comparative study: (i) proximity to coastal settlements (“Near” vs. “Far”) and (ii) accessibility to the coast (North vs. South), that may be considered surrogates of harvesting pressure on the intertidal of Madeira. The present results showed that the stocks of P. aspera and P. candei are slightly recovered after regulatory measures entered into force, with an increase of mean shell length and dominance of reproductive individuals (> 40 mm). P. aspera populations showed a clearer effect mainly due to the higher exploitation rate relative to P. candei. Conservation measures prompted a positive effect on both exploited limpet species, but further assessment studies are necessary to address the evolution of stocks over time.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSousa, R., Vasconcelos, J., Henriques, P., Pinto, A. R., Delgado, J., & Riera, R. (2019). Long-term population status of two harvested intertidal grazers (Patella aspera and Patella candei), before (1996–2006) and after (2007–2017) the implementation of management measures. Journal of Sea Research, 144, 33-38. https://doi.org/10.1016/j.seares.2018.11.002pt_PT
dc.identifier.doi10.1016/j.seares.2018.11.002pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4367
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationMARE - Marine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLimpetspt_PT
dc.subjectSize-structurept_PT
dc.subjectHarvestingpt_PT
dc.subjectManagement measurespt_PT
dc.subjectNorth-eastern Atlanticpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleLong-term population status of two harvested intertidal grazers (Patella aspera and Patella candei), before (1996–2006) and after (2007–2017) the implementation of management measurespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2013/PT
oaire.citation.endPage38pt_PT
oaire.citation.startPage33pt_PT
oaire.citation.titleJournal of Sea Researchpt_PT
oaire.citation.volume144pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSousa
person.familyNameVasconcelos
person.familyNameHenriques
person.familyNameDelgado
person.familyNameRIERA
person.givenNameRicardo
person.givenNameJoana
person.givenNamePaulo
person.givenNameJoão
person.givenNameRODRIGO
person.identifier934239
person.identifier131658
person.identifier.ciencia-id7B18-5677-6571
person.identifier.ciencia-idEE13-2152-BBFC
person.identifier.ciencia-idCC16-7DB1-47E7
person.identifier.orcid0000-0002-5416-6570
person.identifier.orcid0000-0003-3880-2554
person.identifier.orcid0000-0001-5061-2732
person.identifier.orcid0000-0003-4268-7202
person.identifier.orcid0000-0003-1264-1625
person.identifier.ridI-4260-2013
person.identifier.scopus-author-id55619972800
person.identifier.scopus-author-id7003416980
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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