Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/07924259.2023.2175731 http://hdl.handle.net/11449/248396 |
Resumo: | We 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. |
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Repositório Institucional da UNESP |
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Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coastAllometrygonad developmentLatitudinal variationmales morphotypessizeMatWe 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.Setor de Zoologia Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho” CEP 18618-689 Distrito de Rubião JrDepartamento de Ciências Naturais Universidade Estadual do Sudoeste da Bahia Vitória da ConquistaScottish Marine Institute Scottish Association for Marine Science (SAMS)Laboratório de Biologia de Camarões Marinhos e de Água Doce Universidade Estadual Paulista “Júlio de Mesquita Filho”Setor de Zoologia Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho” CEP 18618-689 Distrito de Rubião JrLaboratório de Biologia de Camarões Marinhos e de Água Doce Universidade Estadual Paulista “Júlio de Mesquita Filho”Universidade Estadual Paulista (UNESP)Vitória da ConquistaScottish Association for Marine Science (SAMS)Santos, Mateus Pereira [UNESP]Fransozo, VivianGonçalves, Geslaine R. L. [UNESP]Costa, Rogério Caetano da [UNESP]Negreiros-Fransozo, Maria Lucia [UNESP]2023-07-29T13:42:56Z2023-07-29T13:42:56Z2023-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1080/07924259.2023.2175731Invertebrate Reproduction and Development.0792-4259http://hdl.handle.net/11449/24839610.1080/07924259.2023.21757312-s2.0-85148512925Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInvertebrate Reproduction and Developmentinfo:eu-repo/semantics/openAccess2023-07-29T13:42:56Zoai:repositorio.unesp.br:11449/248396Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:42:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
title |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
spellingShingle |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast Santos, Mateus Pereira [UNESP] Allometry gonad development Latitudinal variation males morphotypes sizeMat |
title_short |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
title_full |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
title_fullStr |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
title_full_unstemmed |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
title_sort |
Relative growth and sexual maturity of the spider crab Libinia spinosa Guérin, 1832 (Brachyura: Majoidea: Epialtidae), from the Southeast Brazilian coast |
author |
Santos, Mateus Pereira [UNESP] |
author_facet |
Santos, Mateus Pereira [UNESP] Fransozo, Vivian Gonçalves, Geslaine R. L. [UNESP] Costa, Rogério Caetano da [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
author_role |
author |
author2 |
Fransozo, Vivian Gonçalves, Geslaine R. L. [UNESP] Costa, Rogério Caetano da [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Vitória da Conquista Scottish Association for Marine Science (SAMS) |
dc.contributor.author.fl_str_mv |
Santos, Mateus Pereira [UNESP] Fransozo, Vivian Gonçalves, Geslaine R. L. [UNESP] Costa, Rogério Caetano da [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
dc.subject.por.fl_str_mv |
Allometry gonad development Latitudinal variation males morphotypes sizeMat |
topic |
Allometry gonad development Latitudinal variation males morphotypes sizeMat |
description |
We 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. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:42:56Z 2023-07-29T13:42:56Z 2023-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/07924259.2023.2175731 Invertebrate Reproduction and Development. 0792-4259 http://hdl.handle.net/11449/248396 10.1080/07924259.2023.2175731 2-s2.0-85148512925 |
url |
http://dx.doi.org/10.1080/07924259.2023.2175731 http://hdl.handle.net/11449/248396 |
identifier_str_mv |
Invertebrate Reproduction and Development. 0792-4259 10.1080/07924259.2023.2175731 2-s2.0-85148512925 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Invertebrate Reproduction and Development |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649931633754112 |