Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2478/s11756-019-00399-5 http://hdl.handle.net/11449/201417 |
Resumo: | We studied the reproduction and population structure of a population of Achelous spinimanus in the region of Ubatuba, Brazil. We collected them monthly, in 2000, in eight sites of different depths (5 to 40 m). The size at the onset of sexual maturity was estimated by the carapace width and the population structure was analyzed based on the size frequency distribution. In total, we collected 402 individuals: 28 juveniles, 105 males and 269 females. In 2000, A. spinimanus reproduced continuously and had a single peak in September–October. This timing contrasts with what has been observed in other populations and may be a local strategy to decrease the interspecific competition with other swimming crabs. The individuals of A. spinimanus from Ubatuba in 2000 were smaller (16.8–93.5 mm) than those from Fortaleza Bay (near Ubatuba) in 1988–1989 (19.0–97.3 mm). We suggest that intense trawling pressure may have contributed to a reduction in the size of individuals. |
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Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factorsBycatchReproductive femalesUbatuba“Siri-candeia”We studied the reproduction and population structure of a population of Achelous spinimanus in the region of Ubatuba, Brazil. We collected them monthly, in 2000, in eight sites of different depths (5 to 40 m). The size at the onset of sexual maturity was estimated by the carapace width and the population structure was analyzed based on the size frequency distribution. In total, we collected 402 individuals: 28 juveniles, 105 males and 269 females. In 2000, A. spinimanus reproduced continuously and had a single peak in September–October. This timing contrasts with what has been observed in other populations and may be a local strategy to decrease the interspecific competition with other swimming crabs. The individuals of A. spinimanus from Ubatuba in 2000 were smaller (16.8–93.5 mm) than those from Fortaleza Bay (near Ubatuba) in 1988–1989 (19.0–97.3 mm). We suggest that intense trawling pressure may have contributed to a reduction in the size of individuals.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Group of Studies on Biology Ecology and Culture of Crustaceans (NEBECC) Department of Zoology Biosciences Institute Universidade Estadual Paulista UNESPAmazon Crustacean Studies Laboratory (LECAM) Parintins Center for Advanced Studies (CESP/UEA) Universidade do Estado do Amazonas, Estrada Odovaldo Novo, Km 1Group of Studies on Biology Ecology and Culture of Crustaceans (NEBECC) Department of Zoology Biosciences Institute Universidade Estadual Paulista UNESPFAPESP: 94/4878-8FAPESP: 97/12106-3FAPESP: 97/12107-0FAPESP: 97/12108-6FAPESP: 98/3134-6Universidade Estadual Paulista (Unesp)Universidade do Estado do AmazonasBernardo, Camila Hipolito [UNESP]Bernardes, Veronica Pereira [UNESP]da Silva, Thiago Elias [UNESP]de Sousa, Aline Nonato [UNESP]Taddei, Fabiano GazziFransozo, Adilson [UNESP]2020-12-12T02:31:57Z2020-12-12T02:31:57Z2020-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1373-1383http://dx.doi.org/10.2478/s11756-019-00399-5Biologia, v. 75, n. 9, p. 1373-1383, 2020.1336-95630006-3088http://hdl.handle.net/11449/20141710.2478/s11756-019-00399-52-s2.0-85076879034Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiologiainfo:eu-repo/semantics/openAccess2021-10-22T18:33:32Zoai:repositorio.unesp.br:11449/201417Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T18:33:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
title |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
spellingShingle |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors Bernardo, Camila Hipolito [UNESP] Bycatch Reproductive females Ubatuba “Siri-candeia” |
title_short |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
title_full |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
title_fullStr |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
title_full_unstemmed |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
title_sort |
Reproduction and population structure of Achelous spinimanus (Crustacea: Portunoidea) in the northern coast of São Paulo, Brazil, and influence of environmental factors |
author |
Bernardo, Camila Hipolito [UNESP] |
author_facet |
Bernardo, Camila Hipolito [UNESP] Bernardes, Veronica Pereira [UNESP] da Silva, Thiago Elias [UNESP] de Sousa, Aline Nonato [UNESP] Taddei, Fabiano Gazzi Fransozo, Adilson [UNESP] |
author_role |
author |
author2 |
Bernardes, Veronica Pereira [UNESP] da Silva, Thiago Elias [UNESP] de Sousa, Aline Nonato [UNESP] Taddei, Fabiano Gazzi Fransozo, Adilson [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade do Estado do Amazonas |
dc.contributor.author.fl_str_mv |
Bernardo, Camila Hipolito [UNESP] Bernardes, Veronica Pereira [UNESP] da Silva, Thiago Elias [UNESP] de Sousa, Aline Nonato [UNESP] Taddei, Fabiano Gazzi Fransozo, Adilson [UNESP] |
dc.subject.por.fl_str_mv |
Bycatch Reproductive females Ubatuba “Siri-candeia” |
topic |
Bycatch Reproductive females Ubatuba “Siri-candeia” |
description |
We studied the reproduction and population structure of a population of Achelous spinimanus in the region of Ubatuba, Brazil. We collected them monthly, in 2000, in eight sites of different depths (5 to 40 m). The size at the onset of sexual maturity was estimated by the carapace width and the population structure was analyzed based on the size frequency distribution. In total, we collected 402 individuals: 28 juveniles, 105 males and 269 females. In 2000, A. spinimanus reproduced continuously and had a single peak in September–October. This timing contrasts with what has been observed in other populations and may be a local strategy to decrease the interspecific competition with other swimming crabs. The individuals of A. spinimanus from Ubatuba in 2000 were smaller (16.8–93.5 mm) than those from Fortaleza Bay (near Ubatuba) in 1988–1989 (19.0–97.3 mm). We suggest that intense trawling pressure may have contributed to a reduction in the size of individuals. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:31:57Z 2020-12-12T02:31:57Z 2020-09-01 |
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/10.2478/s11756-019-00399-5 Biologia, v. 75, n. 9, p. 1373-1383, 2020. 1336-9563 0006-3088 http://hdl.handle.net/11449/201417 10.2478/s11756-019-00399-5 2-s2.0-85076879034 |
url |
http://dx.doi.org/10.2478/s11756-019-00399-5 http://hdl.handle.net/11449/201417 |
identifier_str_mv |
Biologia, v. 75, n. 9, p. 1373-1383, 2020. 1336-9563 0006-3088 10.2478/s11756-019-00399-5 2-s2.0-85076879034 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1373-1383 |
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_ |
1803047362293137408 |