Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/2358-2936e2016010 http://hdl.handle.net/11449/157683 |
Resumo: | Abstract Allometric growth of chelae dimensions was analyzed to assess the average size at the onset of morphometric maturity (ASOMM) and sexual dimorphism regarding the pair of chelae in the Aegla castro. Both adult males and females are heterochelous with the most robust chela occurring predominantly on the left side. Both chelae are larger in males than they are in females of similar size, thus characterizing these structures as sexually dimorphic traits. The ASOMM estimated for males and females were 10.91 and 10.03 mm of carapace length (CL), respectively. The increase in variability of chelae dimensions in post-pubertal males led to the recognition of two morphotypes (I and II). Temporal variation in the proportions of morphotype II males in relation to females showing late ovarian development was synchronous, making the sexually functional nature of these males evident. The average size at the onset of functional maturity (ASOFM) estimated for males (based on the transition from morphotype I to morphotype II) and females (based on the detection of late ovarian development or eggs) were 17.12 and 12.59 mm of CL, respectively. Ovigerous females were sampled from April through August 2007, characterizing a marked seasonal reproductive period lasting for 5 months. |
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Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern BrazilAeglidsmorphometric maturityfunctional maturityadult male morphotypesAbstract Allometric growth of chelae dimensions was analyzed to assess the average size at the onset of morphometric maturity (ASOMM) and sexual dimorphism regarding the pair of chelae in the Aegla castro. Both adult males and females are heterochelous with the most robust chela occurring predominantly on the left side. Both chelae are larger in males than they are in females of similar size, thus characterizing these structures as sexually dimorphic traits. The ASOMM estimated for males and females were 10.91 and 10.03 mm of carapace length (CL), respectively. The increase in variability of chelae dimensions in post-pubertal males led to the recognition of two morphotypes (I and II). Temporal variation in the proportions of morphotype II males in relation to females showing late ovarian development was synchronous, making the sexually functional nature of these males evident. The average size at the onset of functional maturity (ASOFM) estimated for males (based on the transition from morphotype I to morphotype II) and females (based on the detection of late ovarian development or eggs) were 17.12 and 12.59 mm of CL, respectively. Ovigerous females were sampled from April through August 2007, characterizing a marked seasonal reproductive period lasting for 5 months.Universidade de São Paulo Instituto de Biociências Departamento de ZoologiaUniversidade Estadual Paulista Instituto de Biociências Departamento de ZoologiaUniversidade de São Paulo Instituto de Biociências Departamento de EcologiaUniversidade Estadual Paulista Instituto de Biociências Departamento de ZoologiaSociedade Brasileira de CarcinologiaUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Takano, Bruno FernandesCohen, Felipe Pereira De AlmeidaFransozo, AdilsonShimizu, Roberto MunehisaBueno, Sérgio Luiz De Siqueira2018-11-12T17:26:30Z2018-11-12T17:26:30Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article-application/pdfhttp://dx.doi.org/10.1590/2358-2936e2016010Nauplius. Sociedade Brasileira de Carcinologia, v. 24, p. -, 2016.0104-6497http://hdl.handle.net/11449/15768310.1590/2358-2936e2016010S0104-64972016000100207S0104-64972016000100207.pdf44759602002565920000-0002-2067-5406SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNaupliusinfo:eu-repo/semantics/openAccess2024-01-15T06:19:38Zoai:repositorio.unesp.br:11449/157683Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-15T06:19:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
title |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
spellingShingle |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil Takano, Bruno Fernandes Aeglids morphometric maturity functional maturity adult male morphotypes |
title_short |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
title_full |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
title_fullStr |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
title_full_unstemmed |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
title_sort |
Allometric growth, sexual maturity and reproductive cycle ofAegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil |
author |
Takano, Bruno Fernandes |
author_facet |
Takano, Bruno Fernandes Cohen, Felipe Pereira De Almeida Fransozo, Adilson Shimizu, Roberto Munehisa Bueno, Sérgio Luiz De Siqueira |
author_role |
author |
author2 |
Cohen, Felipe Pereira De Almeida Fransozo, Adilson Shimizu, Roberto Munehisa Bueno, Sérgio Luiz De Siqueira |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Takano, Bruno Fernandes Cohen, Felipe Pereira De Almeida Fransozo, Adilson Shimizu, Roberto Munehisa Bueno, Sérgio Luiz De Siqueira |
dc.subject.por.fl_str_mv |
Aeglids morphometric maturity functional maturity adult male morphotypes |
topic |
Aeglids morphometric maturity functional maturity adult male morphotypes |
description |
Abstract Allometric growth of chelae dimensions was analyzed to assess the average size at the onset of morphometric maturity (ASOMM) and sexual dimorphism regarding the pair of chelae in the Aegla castro. Both adult males and females are heterochelous with the most robust chela occurring predominantly on the left side. Both chelae are larger in males than they are in females of similar size, thus characterizing these structures as sexually dimorphic traits. The ASOMM estimated for males and females were 10.91 and 10.03 mm of carapace length (CL), respectively. The increase in variability of chelae dimensions in post-pubertal males led to the recognition of two morphotypes (I and II). Temporal variation in the proportions of morphotype II males in relation to females showing late ovarian development was synchronous, making the sexually functional nature of these males evident. The average size at the onset of functional maturity (ASOFM) estimated for males (based on the transition from morphotype I to morphotype II) and females (based on the detection of late ovarian development or eggs) were 17.12 and 12.59 mm of CL, respectively. Ovigerous females were sampled from April through August 2007, characterizing a marked seasonal reproductive period lasting for 5 months. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2018-11-12T17:26:30Z 2018-11-12T17:26:30Z |
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/10.1590/2358-2936e2016010 Nauplius. Sociedade Brasileira de Carcinologia, v. 24, p. -, 2016. 0104-6497 http://hdl.handle.net/11449/157683 10.1590/2358-2936e2016010 S0104-64972016000100207 S0104-64972016000100207.pdf 4475960200256592 0000-0002-2067-5406 |
url |
http://dx.doi.org/10.1590/2358-2936e2016010 http://hdl.handle.net/11449/157683 |
identifier_str_mv |
Nauplius. Sociedade Brasileira de Carcinologia, v. 24, p. -, 2016. 0104-6497 10.1590/2358-2936e2016010 S0104-64972016000100207 S0104-64972016000100207.pdf 4475960200256592 0000-0002-2067-5406 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nauplius |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
- application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Carcinologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Carcinologia |
dc.source.none.fl_str_mv |
SciELO 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 |
|
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1803650262321070080 |