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Macro and microscopic maturation stage key of green crab (Carcinus maenas, Linnaeus 1758): reproductive cycle and differences among estuarine systems

2023Journal article Open access
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dc.contributor.authorOvelheiro, Andreia
dc.contributor.authorN. Monteiro, J.
dc.contributor.authorGonçalves, Patrícia
dc.contributor.authorCampinho, Marco António
dc.contributor.authorMaia, Francisco
dc.contributor.authorTeodosio, Maria
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2023-11-08T10:46:23Z
dc.date.available2023-11-08T10:46:23Z
dc.date.issued2023
dc.description.abstractGonadal histology is a helpful tool to validate species' macroscopic maturity stages in fisheries biology. Regardless of the many studies on Carcinus maenas, there are still few concerning gonads tissue histology and description of maturity stages. In Portugal, information regarding this species' biology to help support the regulation of crab fisheries, including the minimum landing size, has not yet been defined. In this work, the macro and microscopic characteristics of the reproductive cycle of C. maenas, oogenesis, and spermatogenesis development stages along the Portuguese coast are described, and a new macroscopic scale based on the histological analyses is suggested. During 2019 and 2020, adult C. maenas (both males and females) were collected from the Ria de Aveiro estuary, Rio Sado estuary, and Ria Formosa lagoon, respectively, North, Center, and South Portugal. No-significant differences (P > 0.05) were observed in carapace width and individual weight between all systems. Significant differences (P < 0.05) were observed in gonad weight, gonadosomatic index, and Fulton's condition index between the Rio Sado estuary and Ria Formosa lagoon. Furthermore, significant differences (P < 0.05) in the oocyte diameter between the northern and southernmost locations suggest a geographic variation related to the local environmental conditions of each system. Principal component analysis (PCA) revealed maturity stage and carapace width an association, and a similar morphometry between Ria de Aveiro and Ria Formosa. Temperature was correlated to both maturity stage and carapace width in Ria de Aveiro and Ria Formosa. From the histological analysis and based on microscopic criteria, it was observed that females previously classified within the late macroscopic development stage 2 should be considered mature, so a classification change in the current ovary's developmental stage is proposed. These findings can allow fisheries researchers to reclassify the estimations of maturity ogives and help support the regulation of this species' fishery. The proposed macroscopic scale was validated by histological analyses and can be used elsewhere.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.fishres.2023.106828pt_PT
dc.identifier.issn0165-7836
dc.identifier.urihttp://hdl.handle.net/10400.1/20140
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHistologypt_PT
dc.subjectReproductionpt_PT
dc.subjectOogenesispt_PT
dc.subjectGonadosomaticpt_PT
dc.subjectIndexpt_PT
dc.subjectMicroscopic validationpt_PT
dc.titleMacro and microscopic maturation stage key of green crab (Carcinus maenas, Linnaeus 1758): reproductive cycle and differences among estuarine systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage106828pt_PT
oaire.citation.titleFisheries Researchpt_PT
oaire.citation.volume268pt_PT
person.familyNameOvelheiro
person.familyNameMonteiro
person.familyNameCampinho
person.familyNameTeodosio
person.familyNameLeitão
person.givenNameAndreia
person.givenNameJoão Nuno
person.givenNameMarco António
person.givenNameMaria
person.givenNameFrancisco
person.identifier620214
person.identifier.ciencia-id9516-FB49-B62C
person.identifier.ciencia-id2F11-D45B-0FE9
person.identifier.ciencia-id0E18-2560-6EC1
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.orcid0000-0002-4528-6300
person.identifier.orcid0000-0003-1328-7592
person.identifier.orcid0000-0002-5238-0506
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-4983-9782
person.identifier.ridD-8833-2013
person.identifier.ridB-5077-2013
person.identifier.ridM-3980-2013
person.identifier.scopus-author-id8938999600
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7003991946
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication7795aac9-80a6-496b-833b-0f5e777e7d2a
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relation.isAuthorOfPublication.latestForDiscovery371c8336-6eda-4039-bafb-939f17ecd782

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