Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil.
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.panamjas.org/pdf_artigos/PANAMJAS_4(1)_87-95.pdf http://hdl.handle.net/11449/19385 |
Resumo: | Acanthonyx scutiformis, an endemic species in the Brazilian coast, is commonly found in intertidal rocky-shore algal communities. This study analyzes the population biology of A. scutiformis from Ubatuba region. A total of 371 specimens were collected over one year. Size range was 4.2[long dash]12.7 mm CW (carapace width) for females and 3.7[long dash]15.8 mm CW for males. Females predominated in intermediate size classes, whereas males prevailed in the largest ones. The estimated size when 50% crabs were mature was 10.7 mm CW for males and 8.9 mm CW for females. Sex ratio varied among the demographic groups. The processes that influence A. scutiformis population structure can be related to the different times males and females reach sexual maturity and probably to the distinct predation pressures on each sex during the adult phase. |
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Repositório Institucional da UNESP |
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Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil.Acanthonyx scutiformis, an endemic species in the Brazilian coast, is commonly found in intertidal rocky-shore algal communities. This study analyzes the population biology of A. scutiformis from Ubatuba region. A total of 371 specimens were collected over one year. Size range was 4.2[long dash]12.7 mm CW (carapace width) for females and 3.7[long dash]15.8 mm CW for males. Females predominated in intermediate size classes, whereas males prevailed in the largest ones. The estimated size when 50% crabs were mature was 10.7 mm CW for males and 8.9 mm CW for females. Sex ratio varied among the demographic groups. The processes that influence A. scutiformis population structure can be related to the different times males and females reach sexual maturity and probably to the distinct predation pressures on each sex during the adult phase.Departamento de Zoologia, Instituto de Biociencias, Universidade Estadual Paulista, Caixa Postal 510, 18618-000 Botucatu, São Paulo, BrazilDepartamento de Zoologia, Instituto de Biociencias, Universidade Estadual Paulista, Caixa Postal 510, 18618-000 Botucatu, São Paulo, BrazilUniversidade Estadual Paulista (Unesp)Teixeira, Gustavo MonteiroFransozo, VivianCobo, Valter JoseHiyodo, Celia Mary2014-05-20T13:54:16Z2014-05-20T13:54:16Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article87-95application/pdfhttp://www.panamjas.org/pdf_artigos/PANAMJAS_4(1)_87-95.pdfPan-american Journal of Aquatic Sciences. , v. 4, n. 1, p. 87-95, 2009.1809-9009http://hdl.handle.net/11449/19385ZOOREC:ZOOR14703022227ZOORECZOOR14703022227.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPan-American Journal of Aquatic Sciences0,176info:eu-repo/semantics/openAccess2024-01-10T06:24:34Zoai:repositorio.unesp.br:11449/19385Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T20:19:15.452142Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
title |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
spellingShingle |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. Teixeira, Gustavo Monteiro |
title_short |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
title_full |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
title_fullStr |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
title_full_unstemmed |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
title_sort |
Population features of the spider crab Acanthonyx scutiformis (Dana 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. |
author |
Teixeira, Gustavo Monteiro |
author_facet |
Teixeira, Gustavo Monteiro Fransozo, Vivian Cobo, Valter Jose Hiyodo, Celia Mary |
author_role |
author |
author2 |
Fransozo, Vivian Cobo, Valter Jose Hiyodo, Celia Mary |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Teixeira, Gustavo Monteiro Fransozo, Vivian Cobo, Valter Jose Hiyodo, Celia Mary |
description |
Acanthonyx scutiformis, an endemic species in the Brazilian coast, is commonly found in intertidal rocky-shore algal communities. This study analyzes the population biology of A. scutiformis from Ubatuba region. A total of 371 specimens were collected over one year. Size range was 4.2[long dash]12.7 mm CW (carapace width) for females and 3.7[long dash]15.8 mm CW for males. Females predominated in intermediate size classes, whereas males prevailed in the largest ones. The estimated size when 50% crabs were mature was 10.7 mm CW for males and 8.9 mm CW for females. Sex ratio varied among the demographic groups. The processes that influence A. scutiformis population structure can be related to the different times males and females reach sexual maturity and probably to the distinct predation pressures on each sex during the adult phase. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2014-05-20T13:54:16Z 2014-05-20T13:54:16Z |
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://www.panamjas.org/pdf_artigos/PANAMJAS_4(1)_87-95.pdf Pan-american Journal of Aquatic Sciences. , v. 4, n. 1, p. 87-95, 2009. 1809-9009 http://hdl.handle.net/11449/19385 ZOOREC:ZOOR14703022227 ZOORECZOOR14703022227.pdf |
url |
http://www.panamjas.org/pdf_artigos/PANAMJAS_4(1)_87-95.pdf http://hdl.handle.net/11449/19385 |
identifier_str_mv |
Pan-american Journal of Aquatic Sciences. , v. 4, n. 1, p. 87-95, 2009. 1809-9009 ZOOREC:ZOOR14703022227 ZOORECZOOR14703022227.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pan-American Journal of Aquatic Sciences 0,176 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
87-95 application/pdf |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1803045662482235392 |