Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

ABSTRACT This study describes the reproductive and recruitment patterns of the swimming crab Achelous spinimanus (Latreille, 1819) in the Ubatuba region of the northern coast of São Paulo, Brazil. Crabs were captured monthly from January 1998 to December 1999 in 18 sites located in three bays (Ubatumirim, Ubatuba, and Mar Virado), using a commercial fishing boat. In each sampling area, bottom temperature, salinity, and organic matter content were recorded. A total of 1,911 individuals were captured: 350 adult males, 475 non-ovigerous adult females, 584 adult ovigerous females, and 502 immature individuals. Reproductive females were more abundant in deeper areas; this migration might be a strategy to improve larval dispersion and survival. Ovigerous females were found year-round, indicating a continuous reproduction, and their abundance was positively correlated with temperature. During the 2-year survey, crabs with all gonadal development stages were found. We can infer that this region provides suitable resources for the development of A. spinimanus.

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Main Authors: Sousa,Aline N., Bernardes,Veronica P., Bernardo,Camila H., Taddei,Fabiano G., Teixeira,Gustavo M., Costa,Rogério C., Fransozo,Adilson
Format: Digital revista
Language:English
Published: Museu de Ciências Naturais 2020
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100210
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spelling oai:scielo:S0073-472120200001002102020-06-12Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resourceSousa,Aline N.Bernardes,Veronica P.Bernardo,Camila H.Taddei,Fabiano G.Teixeira,Gustavo M.Costa,Rogério C.Fransozo,Adilson Fishing organic matter recruitment temperature Ubatuba ABSTRACT This study describes the reproductive and recruitment patterns of the swimming crab Achelous spinimanus (Latreille, 1819) in the Ubatuba region of the northern coast of São Paulo, Brazil. Crabs were captured monthly from January 1998 to December 1999 in 18 sites located in three bays (Ubatumirim, Ubatuba, and Mar Virado), using a commercial fishing boat. In each sampling area, bottom temperature, salinity, and organic matter content were recorded. A total of 1,911 individuals were captured: 350 adult males, 475 non-ovigerous adult females, 584 adult ovigerous females, and 502 immature individuals. Reproductive females were more abundant in deeper areas; this migration might be a strategy to improve larval dispersion and survival. Ovigerous females were found year-round, indicating a continuous reproduction, and their abundance was positively correlated with temperature. During the 2-year survey, crabs with all gonadal development stages were found. We can infer that this region provides suitable resources for the development of A. spinimanus.info:eu-repo/semantics/openAccessMuseu de Ciências NaturaisIheringia. Série Zoologia v.110 20202020-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100210en10.1590/1678-4766e2020010
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country Brasil
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libraryname SciELO
language English
format Digital
author Sousa,Aline N.
Bernardes,Veronica P.
Bernardo,Camila H.
Taddei,Fabiano G.
Teixeira,Gustavo M.
Costa,Rogério C.
Fransozo,Adilson
spellingShingle Sousa,Aline N.
Bernardes,Veronica P.
Bernardo,Camila H.
Taddei,Fabiano G.
Teixeira,Gustavo M.
Costa,Rogério C.
Fransozo,Adilson
Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
author_facet Sousa,Aline N.
Bernardes,Veronica P.
Bernardo,Camila H.
Taddei,Fabiano G.
Teixeira,Gustavo M.
Costa,Rogério C.
Fransozo,Adilson
author_sort Sousa,Aline N.
title Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
title_short Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
title_full Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
title_fullStr Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
title_full_unstemmed Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
title_sort reproductive biology of the swimming crab achelous spinimanus (decapoda, portunoidea): a potential fishing resource
description ABSTRACT This study describes the reproductive and recruitment patterns of the swimming crab Achelous spinimanus (Latreille, 1819) in the Ubatuba region of the northern coast of São Paulo, Brazil. Crabs were captured monthly from January 1998 to December 1999 in 18 sites located in three bays (Ubatumirim, Ubatuba, and Mar Virado), using a commercial fishing boat. In each sampling area, bottom temperature, salinity, and organic matter content were recorded. A total of 1,911 individuals were captured: 350 adult males, 475 non-ovigerous adult females, 584 adult ovigerous females, and 502 immature individuals. Reproductive females were more abundant in deeper areas; this migration might be a strategy to improve larval dispersion and survival. Ovigerous females were found year-round, indicating a continuous reproduction, and their abundance was positively correlated with temperature. During the 2-year survey, crabs with all gonadal development stages were found. We can infer that this region provides suitable resources for the development of A. spinimanus.
publisher Museu de Ciências Naturais
publishDate 2020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100210
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