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Biological traits and population dynamics for sustainable harvesting of Carcinus maenas

2025-01Journal article Open Access
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dc.contributor.authorMonteiro, João Nuno
dc.contributor.authorOvelheiro, Andreia
dc.contributor.authorMaia, Francisco
dc.contributor.authorTeodosio, Maria
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2025-01-07T12:07:46Z
dc.date.available2025-01-07T12:07:46Z
dc.date.issued2025-01
dc.description.abstractResearch focusing on the biological patterns and population dynamics of Carcinus maenas has not been conducted for the purpose of fishery management along the European coastal systems. This has led to the implementation of fisheries management policies without scientific considerations, adversely affecting fishery profitability. To addrees this gap, we studied the crab species' population dynamics, reproductive biology, and growth patterns across different Portuguese lagoons and estuaries on a monthly basis from 2019 to 2021. Surveys were performed in the Southern (Ria Formosa lagoon and Ria Alvor estuary), Central (Sado river/estuary) and Northern regions (Ria Aveiro estuary) of Portugal. Monthly biological data was used to analyse size-frequency distributions, sex ratios, spawning seasons, recruitment pulses, estimate carapace width at first maturaty and biological growth parameters. It was observed that spawning occurs almost year-round in all systems, with a peak in the colder months, between September and March. In the southern regions of the Portuguese coast, the spawning period starts earlier than in the central and northern systems, with a higher sex ratio recorded for females in all systems. The carapace width at which 50 % (CW50) of individuals reach maturity is similar for both sexes, around 30 mm, a value below to the minimum landing size enforced in Portugal. The analysis of von Bertalanffy growth curves revealed a continuous recruitment with a peak during the colder months, with individuals reaching the size at maturation after six months. The fast growth and continuous recruitment leds to the existence of between four and six growth cohorts for both sexes across all system. The findings of this study can contribute to more effective fisheries management policies for C. maenas in Portugal, such as a reduction of the minimum landing size.eng
dc.description.sponsorship16-01-04-FMP-0005; SFRH/BD/06336/2021; DL57/2016/CP1361/CT0008; 101071300
dc.identifier.doi10.1016/j.fishres.2024.107243
dc.identifier.issn0165-7836
dc.identifier.urihttp://hdl.handle.net/10400.1/26584
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationClimate-mediated shifts in marine resources: an eco-socio-economic approach to assess vulnerability of fisheries to Climate Change.
dc.relation.ispartofFisheries Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectEuropean green crab
dc.subjectLife-history traits
dc.subjectReproductive patterns
dc.subjectSpawning seasons
dc.subjectSexual maturation
dc.subjectManagement measures
dc.titleBiological traits and population dynamics for sustainable harvesting of Carcinus maenaseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleClimate-mediated shifts in marine resources: an eco-socio-economic approach to assess vulnerability of fisheries to Climate Change.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND5ed/2022.04803.CEECIND%2FCP1729%2FCT0006/PT
oaire.citation.startPage107243
oaire.citation.titleFisheries Research
oaire.citation.volume281
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND5ed
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMonteiro
person.familyNameOvelheiro
person.familyNameTeodosio
person.familyNameLeitão
person.givenNameJoão Nuno
person.givenNameAndreia
person.givenNameMaria
person.givenNameFrancisco
person.identifier620214
person.identifier.ciencia-id2F11-D45B-0FE9
person.identifier.ciencia-id9516-FB49-B62C
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.orcid0000-0003-1328-7592
person.identifier.orcid0000-0002-4528-6300
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-4983-9782
person.identifier.ridB-5077-2013
person.identifier.ridM-3980-2013
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7003991946
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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