Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California

ABSTRACT Aspects of distribution and population dynamics were assessed in two rock shrimp species of the genus Sicyonia. Samples were obtained by sea bottom trawling in depths from 50 to 460 m during two research cruises on board the B/I BIP XII in the Gulf of California, Mexico. Taxonomic identific...

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Autores principales:	López-Martínez,Juana, Rábago-Quiroz,Carlos H., Arzola-Sotelo,Edgar A., Morales-Azpeitia,Rufino, Acevedo-Cervantes,Alejandro
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2019
Materias:	Sicyonia recruitment growth natural mortality population dynamics Gulf of California
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300524
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spelling	oai:scielo:S0718-560X20190003005242019-08-09Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of CaliforniaLópez-Martínez,JuanaRábago-Quiroz,Carlos H.Arzola-Sotelo,Edgar A.Morales-Azpeitia,RufinoAcevedo-Cervantes,Alejandro Sicyonia recruitment growth natural mortality population dynamics Gulf of California ABSTRACT Aspects of distribution and population dynamics were assessed in two rock shrimp species of the genus Sicyonia. Samples were obtained by sea bottom trawling in depths from 50 to 460 m during two research cruises on board the B/I BIP XII in the Gulf of California, Mexico. Taxonomic identification of specimens was performed; measurements of individual length and weight data were taken to obtain biometric relationships and length frequencies. Growth parameter estimations were performed adjusting the von Bertalanffy growth model (VBGM), and the recruitment pattern was obtained by the ELEFAN II method. Longevity was estimated with the Taylor equation, natural mortality with six different models, and length at first maturity by the logistic model. A total of 67 fishing trawls were monitored, and 1,330 specimens were caught (65% S. ingentis; 35% S. penicillata) in the depth range from 124 to 338 m. Sex ratio (F:M) was 1.0:1.6 for both species; weight and length relationships (both sexes) showed an isometric growth for S. ingentis and positive allometric growth for S. penicillata. Growth parameters and longevity values were moderate (1.71 and 1.81 years) with age at first maturity around six months for both species. The recruitment pattern showed continuous periods all year long, with a notable peak from November to May. Average natural mortality was 2.47 for S. ingentis and 2.35 for S. penicillata. Distribution and population dynamics information reported in this study for these two shrimp species should be considered as base knowledge in subsequent studies on fisheries management in the Gulf of California.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.47 n.3 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300524en10.3856/vol47-issue3-fulltext-14
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sicyonia recruitment growth natural mortality population dynamics Gulf of California
spellingShingle	Sicyonia recruitment growth natural mortality population dynamics Gulf of California López-Martínez,Juana Rábago-Quiroz,Carlos H. Arzola-Sotelo,Edgar A. Morales-Azpeitia,Rufino Acevedo-Cervantes,Alejandro Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
description	ABSTRACT Aspects of distribution and population dynamics were assessed in two rock shrimp species of the genus Sicyonia. Samples were obtained by sea bottom trawling in depths from 50 to 460 m during two research cruises on board the B/I BIP XII in the Gulf of California, Mexico. Taxonomic identification of specimens was performed; measurements of individual length and weight data were taken to obtain biometric relationships and length frequencies. Growth parameter estimations were performed adjusting the von Bertalanffy growth model (VBGM), and the recruitment pattern was obtained by the ELEFAN II method. Longevity was estimated with the Taylor equation, natural mortality with six different models, and length at first maturity by the logistic model. A total of 67 fishing trawls were monitored, and 1,330 specimens were caught (65% S. ingentis; 35% S. penicillata) in the depth range from 124 to 338 m. Sex ratio (F:M) was 1.0:1.6 for both species; weight and length relationships (both sexes) showed an isometric growth for S. ingentis and positive allometric growth for S. penicillata. Growth parameters and longevity values were moderate (1.71 and 1.81 years) with age at first maturity around six months for both species. The recruitment pattern showed continuous periods all year long, with a notable peak from November to May. Average natural mortality was 2.47 for S. ingentis and 2.35 for S. penicillata. Distribution and population dynamics information reported in this study for these two shrimp species should be considered as base knowledge in subsequent studies on fisheries management in the Gulf of California.
author	López-Martínez,Juana Rábago-Quiroz,Carlos H. Arzola-Sotelo,Edgar A. Morales-Azpeitia,Rufino Acevedo-Cervantes,Alejandro
author_facet	López-Martínez,Juana Rábago-Quiroz,Carlos H. Arzola-Sotelo,Edgar A. Morales-Azpeitia,Rufino Acevedo-Cervantes,Alejandro
author_sort	López-Martínez,Juana
title	Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
title_short	Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
title_full	Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
title_fullStr	Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
title_full_unstemmed	Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California
title_sort	distribution and population dynamics of the rock shrimp sicyonia ingentis and sicyonia penicillata (decapoda: sicyoniidae) in the gulf of california
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300524
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Distribution and population dynamics of the rock shrimp Sicyonia ingentis and Sicyonia penicillata (Decapoda: Sicyoniidae) in the Gulf of California

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