Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae)
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/10.1080/07924259.2016.1140088 http://hdl.handle.net/11449/168383 |
Resumo: | Reproduction, growth and longevity of Aegla marginata sampled with traps in Intervales State Park (Brazil) from October 2013 to December 2014 are described. Male and female carapace lengths (CL) ranged in size from 5.50 to 20.00 mm and 5.20 to 19.67 mm, respectively. Functional sexual maturity was determined at a CL of 9.28 mm. The main reproductive period occurred during colder seasons (autumn and winter, March-August). Egg number varied between 40 and 146 (mean ± SD; 95 ± 31.5), with an average reproductive output of 10.8% of the female weight, a value close to that found in other anomurans, enough to guarantee the success of this species during embryonic development. Fecundity increased with animal size (ANCOVA, p < 0.05), which allows an animal to produce more eggs, maximising reproductive efficiency, according to its size. Sex ratio was skewed towards males (Chi-Square, p < 0.05), especially during the reproductive period, in which females tended to exhibit cryptic behaviour when incubating eggs. The number of females and males was similar in the months before reproduction, suggesting that females were more active looking for food to store energy for the next reproductive period, and/or were looking for mates. The longevities of 2.43 (males) and 2.49 (females) years (Von Bertalanffy method) corroborate other studies that estimated a longevity of 2 to 3.3 years for Aegla spp. We conclude that A. marginata has seasonal reproduction and recruitment. All the information gathered here should be useful to future studies with other populations of A. marginata outside protected areas. |
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Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae)Fecunditylatitudinal variationlife spanreproductive periodicitysex ratioReproduction, growth and longevity of Aegla marginata sampled with traps in Intervales State Park (Brazil) from October 2013 to December 2014 are described. Male and female carapace lengths (CL) ranged in size from 5.50 to 20.00 mm and 5.20 to 19.67 mm, respectively. Functional sexual maturity was determined at a CL of 9.28 mm. The main reproductive period occurred during colder seasons (autumn and winter, March-August). Egg number varied between 40 and 146 (mean ± SD; 95 ± 31.5), with an average reproductive output of 10.8% of the female weight, a value close to that found in other anomurans, enough to guarantee the success of this species during embryonic development. Fecundity increased with animal size (ANCOVA, p < 0.05), which allows an animal to produce more eggs, maximising reproductive efficiency, according to its size. Sex ratio was skewed towards males (Chi-Square, p < 0.05), especially during the reproductive period, in which females tended to exhibit cryptic behaviour when incubating eggs. The number of females and males was similar in the months before reproduction, suggesting that females were more active looking for food to store energy for the next reproductive period, and/or were looking for mates. The longevities of 2.43 (males) and 2.49 (females) years (Von Bertalanffy method) corroborate other studies that estimated a longevity of 2 to 3.3 years for Aegla spp. We conclude that A. marginata has seasonal reproduction and recruitment. All the information gathered here should be useful to future studies with other populations of A. marginata outside protected areas.NEBECC (Núcleo de Estudos em Biologia Ecologia e Cultivo de Crustáceos) Zoology Department IB Universidade Estadual Paulista (UNESP)NEBECC (Núcleo de Estudos em Biologia Ecologia e Cultivo de Crustáceos) Zoology Department IB Universidade Estadual Paulista (UNESP)Universidade Estadual Paulista (Unesp)Da Silva, Alexandre Ribeiro [UNESP]Wolf, Milena Regina [UNESP]Castilho, Antonio Leão [UNESP]2018-12-11T16:41:02Z2018-12-11T16:41:02Z2016-01-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article59-72application/pdfhttp://dx.doi.org/10.1080/07924259.2016.1140088Invertebrate Reproduction and Development, v. 60, n. 1, p. 59-72, 2016.0792-4259http://hdl.handle.net/11449/16838310.1080/07924259.2016.11400882-s2.0-84958052351Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInvertebrate Reproduction and Development0,409info:eu-repo/semantics/openAccess2024-01-10T06:30:10Zoai:repositorio.unesp.br:11449/168383Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:39:18.854243Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
title |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
spellingShingle |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) Da Silva, Alexandre Ribeiro [UNESP] Fecundity latitudinal variation life span reproductive periodicity sex ratio |
title_short |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
title_full |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
title_fullStr |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
title_full_unstemmed |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
title_sort |
Reproduction, growth and longevity of the endemic South American crab Aegla marginata (Decapoda: Anomura: Aeglidae) |
author |
Da Silva, Alexandre Ribeiro [UNESP] |
author_facet |
Da Silva, Alexandre Ribeiro [UNESP] Wolf, Milena Regina [UNESP] Castilho, Antonio Leão [UNESP] |
author_role |
author |
author2 |
Wolf, Milena Regina [UNESP] Castilho, Antonio Leão [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Da Silva, Alexandre Ribeiro [UNESP] Wolf, Milena Regina [UNESP] Castilho, Antonio Leão [UNESP] |
dc.subject.por.fl_str_mv |
Fecundity latitudinal variation life span reproductive periodicity sex ratio |
topic |
Fecundity latitudinal variation life span reproductive periodicity sex ratio |
description |
Reproduction, growth and longevity of Aegla marginata sampled with traps in Intervales State Park (Brazil) from October 2013 to December 2014 are described. Male and female carapace lengths (CL) ranged in size from 5.50 to 20.00 mm and 5.20 to 19.67 mm, respectively. Functional sexual maturity was determined at a CL of 9.28 mm. The main reproductive period occurred during colder seasons (autumn and winter, March-August). Egg number varied between 40 and 146 (mean ± SD; 95 ± 31.5), with an average reproductive output of 10.8% of the female weight, a value close to that found in other anomurans, enough to guarantee the success of this species during embryonic development. Fecundity increased with animal size (ANCOVA, p < 0.05), which allows an animal to produce more eggs, maximising reproductive efficiency, according to its size. Sex ratio was skewed towards males (Chi-Square, p < 0.05), especially during the reproductive period, in which females tended to exhibit cryptic behaviour when incubating eggs. The number of females and males was similar in the months before reproduction, suggesting that females were more active looking for food to store energy for the next reproductive period, and/or were looking for mates. The longevities of 2.43 (males) and 2.49 (females) years (Von Bertalanffy method) corroborate other studies that estimated a longevity of 2 to 3.3 years for Aegla spp. We conclude that A. marginata has seasonal reproduction and recruitment. All the information gathered here should be useful to future studies with other populations of A. marginata outside protected areas. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-02 2018-12-11T16:41:02Z 2018-12-11T16:41:02Z |
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/10.1080/07924259.2016.1140088 Invertebrate Reproduction and Development, v. 60, n. 1, p. 59-72, 2016. 0792-4259 http://hdl.handle.net/11449/168383 10.1080/07924259.2016.1140088 2-s2.0-84958052351 |
url |
http://dx.doi.org/10.1080/07924259.2016.1140088 http://hdl.handle.net/11449/168383 |
identifier_str_mv |
Invertebrate Reproduction and Development, v. 60, n. 1, p. 59-72, 2016. 0792-4259 10.1080/07924259.2016.1140088 2-s2.0-84958052351 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Invertebrate Reproduction and Development 0,409 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
59-72 application/pdf |
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 |
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1808129447399784448 |