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Reproductive traits of the African mud crab (Panopeus africanus) on the South Portuguese coast

2024Journal article Open access
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dc.contributor.authorN. Monteiro, J.
dc.contributor.authorOvelheiro, Andreia
dc.contributor.authorPinto, Miguel
dc.contributor.authorTeodosio, Maria
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2024-03-12T09:52:17Z
dc.date.available2024-03-12T09:52:17Z
dc.date.issued2024
dc.description.abstractSpecies with high economic relevance are widely studied in contrast with low economic relevance species such as Panopeus africanus, a small crab with a wide distribution along the eastern Atlantic coast, which remains poorly studied in regarding to the biological and ecological issues. Knowledge of reproductive patterns is essential to understand populations dynamics and species biological life-cycle traits. The main objective of the present research was to study the reproductive patterns of P. africanus. The population size structure, maturation stages and gametogenic development aspect, size at maturation, reproductive periods and morphometric-fecundity relationships of P. africanus in the southern Portuguese coast (Ria Formosa) was analysed. Crabs were sampled monthly, from January 2019 to December 2021, with traps and hand collected. The crab's carapace width (CW) ranged between 7 to 52 mm, and it was observed that in smaller and larger CW size classes, the proportion of males was higher, however in intermediate CW size classes the sex ratio was near 1:1. The gonads development was characterized based on histological analysis. Males presented four maturity developmental stages where two stages were immature and two were mature. Females presented six maturity developmental stages, where two stages were immature, and four stages were mature. Regardless of sex, the mean maturity size was 20 mm CW. A high percentage of mature individuals was observed throughout the year however, in the colder months the percentage of mature individuals was lower. Additionally, ovigerous females were only observed in the warmer months, pointing to a short breeding period occurring in the warmer months. Fecundity ranged between 12368 and 84140 eggs/female, following a positive correlation between CW/egg number. These novel results allowed to shed light on reproductive patterns of P. africanus population inhabiting the southern Portuguese coast, contributing also to a better understanding of the basic reproductive biology of this crab populations.pt_PT
dc.description.sponsorshipSFRH/BD/06336/2021; SFRH/BD/11426/2022;pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.rsma.2023.103339pt_PT
dc.identifier.issn2352-4855
dc.identifier.urihttp://hdl.handle.net/10400.1/20482
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationAlgarve Centre for Marine Sciences
dc.relationNot Available
dc.relationClimate-mediated shifts in marine resources: an eco-socio-economic approach to assess vulnerability of fisheries to Climate Change.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectReproductive patternspt_PT
dc.subjectMaturation stagespt_PT
dc.subjectSize at maturationpt_PT
dc.subjectReproductive periodspt_PT
dc.subjectSize–fecundity relationshipspt_PT
dc.titleReproductive traits of the African mud crab (Panopeus africanus) on the South Portuguese coastpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleNot Available
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/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND5ed/2022.04803.CEECIND%2FCP1729%2FCT0006/PT
oaire.citation.startPage103339pt_PT
oaire.citation.titleRegional Studies in Marine Sciencept_PT
oaire.citation.volume69pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
oaire.fundingStreamCEEC IND5ed
person.familyNameMonteiro
person.familyNameOvelheiro
person.familyNamePinto
person.familyNameTeodosio
person.familyNameLeitão
person.givenNameJoão Nuno
person.givenNameAndreia
person.givenNameMiguel
person.givenNameMaria
person.givenNameFrancisco
person.identifier620214
person.identifier.ciencia-id2F11-D45B-0FE9
person.identifier.ciencia-id9516-FB49-B62C
person.identifier.ciencia-id2E1D-9AB5-4D88
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.orcid0000-0003-4472-3238
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-id57223986133
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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