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Unravelling the effects of exploitation on the size–structure of the intertidal topshell Phorcus sauciatus in harvested and non-harvested Atlantic regions

2020Journal article Open access
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dc.contributor.authorSousa, Ricardo
dc.contributor.authorVasconcelos, Joana
dc.contributor.authorRiera, Rodrigo
dc.date.accessioned2022-06-21T13:17:19Z
dc.date.available2022-06-21T13:17:19Z
dc.date.issued2020
dc.description.abstractIntertidal molluscs are keystone species often used as biological indicators of human-driven pertur bations. The increasing levels of harvesting pressure on these intertidal grazers, due to the expansion of human population on coastal areas, is known to affect negatively the exploited populations by altering population size–structure and decreasing abundances. A comparative study on the effect of harvest on the size–structure of Phorcus sauciatus populations was conducted according to the exploitation level, harvested and non-harvested, throughout the intertidal zone of mainland Portugal, Azores, Madeira, and the Canaries. The comparative analysis of the size–structure of 10,480 individuals of P. sauciatus showed that the largest individuals were recorded in the Azores and the smallest in Madeira. In harvested populations, P. sauciatus showed to be under greater harvesting pressure in the archipelago of Madeira, where the lowest mean size was observed. In the Canaries the harvesting is regulated whilst in the mainland Portugal the regulation is scarce. The Azores showed no harvesting pressure. Marine Protected Areas showed individuals with the highest mean sizes supporting their effectiveness in preserving the size–structure of this species, regardless the ecoregion and thus, the harvesting pressure. The present results highlight the importance of harvesting regulation of P. sauciatus in Madeira, as well as the implementation of management measures aiming at the sustainable exploitation and conservation of this species.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSousa, R., Vasconcelos, J., & Riera, R. (2020). Unravelling the effects of exploitation on the size–structure of the intertidal topshell Phorcus sauciatus in harvested and non-harvested Atlantic regions. Regional Studies in Marine Science, 38, 101387. https://doi.org/10.1016/j.rsma.2020.101387pt_PT
dc.identifier.doi10.1016/j.rsma.2020.101387pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4340
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationIntegrative Approach to develop bioindicators of overfishing symptoms in fully-exploited species in areas with differente protection and management regimes
dc.relationMARE - Marine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHuman-induced pressurept_PT
dc.subjectHarvestingpt_PT
dc.subjectIntertidalpt_PT
dc.subjectMolluscspt_PT
dc.subjectPhorcus sauciatuspt_PT
dc.subjectAtlantic Oceanpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleUnravelling the effects of exploitation on the size–structure of the intertidal topshell Phorcus sauciatus in harvested and non-harvested Atlantic regionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleIntegrative Approach to develop bioindicators of overfishing symptoms in fully-exploited species in areas with differente protection and management regimes
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBSAB%2F143056%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2019/PT
oaire.citation.startPage101387pt_PT
oaire.citation.titleRegional Studies in Marine Sciencept_PT
oaire.citation.volume38pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSousa
person.familyNameVasconcelos
person.familyNameRIERA
person.givenNameRicardo
person.givenNameJoana
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.orcid0000-0003-1264-1625
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.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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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