Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast

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dc.contributor.authorSantos, Mateus Pereira [UNESP]
dc.contributor.authorFransozo, Vivian
dc.contributor.authorGonçalves, Geslaine R. L. [UNESP]
dc.contributor.authorCosta, Rogério Caetano da [UNESP]
dc.contributor.authorNegreiros-Fransozo, Maria Lucia [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionVitória da Conquista
dc.contributor.institutionScottish Association for Marine Science (SAMS)
dc.date.accessioned2023-07-29T13:42:56Z
dc.date.available2023-07-29T13:42:56Z
dc.date.issued2023-01-01
dc.description.abstractWe investigated the relative growth and sexual maturity (gonadal and morphometric) of Libinia spinosa. Crabs were sampled at Ubatuba from January to December 2000, using trawls. Based on allometric growth, males were grouped into juveniles (MJ), adolescents (MAd) and adults (MA) based on the relationship CPL (major cheliped propod length) vs. CW (cephalothorax width), all with positive allometric growth. For females, the relationship AW (abdomen width) vs. CW allowed segregating juveniles (FJ) from adults (FA), with positive allometric growth for FJ but isometric growth for FA. The morphometric maturity evidenced for MAd varies from 33.7 mm to 34.5 mm and for MA and FA. The size in which 50% of individuals reach the morphometric sexual maturity was L₅₀ = 50.1 mm for males and L₅₀ = 37.3 mm for females. Gonad maturity was L₅₀ = 33.7 mm for males and L₅₀ = 36.9 mm for females. Through relative growth analyses, we identified an adolescent male group (prepuberal phase). These individuals presented mature gonads, enabling them to copulate with females. These adolescent males may reproduce while avoiding competition with adult males, as it happens in other species of Majoidea that present more than two morphotypes in the population.en
dc.description.affiliationSetor de Zoologia Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho” CEP 18618-689 Distrito de Rubião Jr
dc.description.affiliationDepartamento de Ciências Naturais Universidade Estadual do Sudoeste da Bahia Vitória da Conquista
dc.description.affiliationScottish Marine Institute Scottish Association for Marine Science (SAMS)
dc.description.affiliationLaboratório de Biologia de Camarões Marinhos e de Água Doce Universidade Estadual Paulista “Júlio de Mesquita Filho”
dc.description.affiliationUnespSetor de Zoologia Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho” CEP 18618-689 Distrito de Rubião Jr
dc.description.affiliationUnespLaboratório de Biologia de Camarões Marinhos e de Água Doce Universidade Estadual Paulista “Júlio de Mesquita Filho”
dc.identifierhttp://dx.doi.org/10.1080/07924259.2023.2175731
dc.identifier.citationInvertebrate Reproduction and Development.
dc.identifier.doi10.1080/07924259.2023.2175731
dc.identifier.issn0792-4259
dc.identifier.scopus2-s2.0-85148512925
dc.identifier.urihttp://hdl.handle.net/11449/248396
dc.language.isoeng
dc.relation.ispartofInvertebrate Reproduction and Development
dc.sourceScopus
dc.subjectAllometry
dc.subjectgonad development
dc.subjectLatitudinal variation
dc.subjectmales morphotypes
dc.subjectsizeMat
dc.titleRelative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coasten
dc.typeArtigo
unesp.author.orcid0000-0003-3555-4049[1]
unesp.author.orcid0000-0001-5556-5998[2]
unesp.author.orcid0000-0001-7443-6913[3]
unesp.author.orcid0000-0002-1342-7340[4]
unesp.author.orcid0000-0002-8070-8089[5]

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