Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California

Population dynamics of 3 Callinectes species: C. arcuatus, C. bellicosus, and C. toxotes are reported for the first time as incidental shrimp bycatch samplings captured in the eastern Gulf of California in a range from 10 to 77 m in depth from September 2004 to March 2005. Growth, longevity, recruit...

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Autores principales:	López-Martínez,Juana, López-Herrera,Leonor, Valdez-Holguín,J. Eduardo, Rábago-Quiroz,Carlos H
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2014
Materias:	Callinectes population dynamics bycatch fauna Gulf of California
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572014000100003
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spelling	oai:scielo:S0718-195720140001000032014-08-18Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of CaliforniaLópez-Martínez,JuanaLópez-Herrera,LeonorValdez-Holguín,J. EduardoRábago-Quiroz,Carlos H Callinectes population dynamics bycatch fauna Gulf of California Population dynamics of 3 Callinectes species: C. arcuatus, C. bellicosus, and C. toxotes are reported for the first time as incidental shrimp bycatch samplings captured in the eastern Gulf of California in a range from 10 to 77 m in depth from September 2004 to March 2005. Growth, longevity, recruitment pattern, mortality (natural, total, and by fishing), and exploitation rate were analyzed. Also, size comparison among the organisms captured by the shrimp and artisanal fishing fleets was calculated. Callinectes arcuatus (n = 737) was more abundant than the other two (C. bellicosus, n = 291 and C. toxotes, n = 344). Significant differences were shown between size distribution of C. arcuatus and C. bellicosus captured by the 2 fleets; the shrimp fleet extracted mainly organisms in sizes ranging from 50 to 120 mm in carapace width (CW), while the artisanal fleet extracted sizes from 75 to 155 mm in CW from both species. Growth parameters were moderate (L∞= 160, 173, and 168 mm; K= 1.1., 1.3 and 0.9 year-1 for C. arcuatus, C. bellicosus, and C. toxotes, respectively), estimating a 4-year longevity for the 3 species. The reproductive recruitment pattern showed a continuous period with a peak from May to August. The exploitation rate did not show a significant degree of overexploitation for any of the species. There are some differences in the parameters of population dynamics (sizes, growth) of this species based on data from commercial captures and those obtained with data of incidental captures. It is important to perform an analysis including both types of information for an adequate fishery management of these resources.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.49 n.1 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572014000100003en10.4067/S0718-19572014000100003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Callinectes population dynamics bycatch fauna Gulf of California
spellingShingle	Callinectes population dynamics bycatch fauna Gulf of California López-Martínez,Juana López-Herrera,Leonor Valdez-Holguín,J. Eduardo Rábago-Quiroz,Carlos H Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
description	Population dynamics of 3 Callinectes species: C. arcuatus, C. bellicosus, and C. toxotes are reported for the first time as incidental shrimp bycatch samplings captured in the eastern Gulf of California in a range from 10 to 77 m in depth from September 2004 to March 2005. Growth, longevity, recruitment pattern, mortality (natural, total, and by fishing), and exploitation rate were analyzed. Also, size comparison among the organisms captured by the shrimp and artisanal fishing fleets was calculated. Callinectes arcuatus (n = 737) was more abundant than the other two (C. bellicosus, n = 291 and C. toxotes, n = 344). Significant differences were shown between size distribution of C. arcuatus and C. bellicosus captured by the 2 fleets; the shrimp fleet extracted mainly organisms in sizes ranging from 50 to 120 mm in carapace width (CW), while the artisanal fleet extracted sizes from 75 to 155 mm in CW from both species. Growth parameters were moderate (L∞= 160, 173, and 168 mm; K= 1.1., 1.3 and 0.9 year-1 for C. arcuatus, C. bellicosus, and C. toxotes, respectively), estimating a 4-year longevity for the 3 species. The reproductive recruitment pattern showed a continuous period with a peak from May to August. The exploitation rate did not show a significant degree of overexploitation for any of the species. There are some differences in the parameters of population dynamics (sizes, growth) of this species based on data from commercial captures and those obtained with data of incidental captures. It is important to perform an analysis including both types of information for an adequate fishery management of these resources.
author	López-Martínez,Juana López-Herrera,Leonor Valdez-Holguín,J. Eduardo Rábago-Quiroz,Carlos H
author_facet	López-Martínez,Juana López-Herrera,Leonor Valdez-Holguín,J. Eduardo Rábago-Quiroz,Carlos H
author_sort	López-Martínez,Juana
title	Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
title_short	Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
title_full	Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
title_fullStr	Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
title_full_unstemmed	Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California
title_sort	population dynamics of the swimming crabs callinectes (portunidae) components of shrimp bycatch in the eastern coast of the gulf of california
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572014000100003
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_version_	1714202335039717376

Population dynamics of the swimming crabs Callinectes (Portunidae) components of shrimp bycatch in the eastern coast of the Gulf of California

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