Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean

The population structure, particularly growth, age, mortality and somatic production of the olivid snail Olivancillaria deshayesiana were investigated. Annual formation of internal shell growth marks was confirmed by the record of stable oxygen isotopes in the shell, which reflects seasonal patterns...

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Detalles Bibliográficos
Autores principales:	Arrighetti, Florencia, Teso, Valeria, Penchaszadeh, Pablo Enrique
Publicado:	2012
Materias:	age growth marine gastropod mortality production
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00762997_v55_n1_p163_Arrighetti http://hdl.handle.net/20.500.12110/paper_00762997_v55_n1_p163_Arrighetti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00762997_v55_n1_p163_Arrighetti
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spelling	paper:paper_00762997_v55_n1_p163_Arrighetti2023-06-08T15:07:18Z Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean Arrighetti, Florencia Teso, Valeria Penchaszadeh, Pablo Enrique age growth marine gastropod mortality production The population structure, particularly growth, age, mortality and somatic production of the olivid snail Olivancillaria deshayesiana were investigated. Annual formation of internal shell growth marks was confirmed by the record of stable oxygen isotopes in the shell, which reflects seasonal patterns of water temperature. A von Bertalanffy growth model fitted to 81 size-atage data pairs, indicating that O. deshayesiana may attain 31 mm SL in about 10 years. The estimated total mortality Z and natural mortality M were 0.651 y-1 and 0.361 y -1, respectively. Fishing mortality F was 0.290 y -1, and the exploitation rate E was 0.445, indicating that this population was not overexploited at the time of the study. However, this situation may well change in the future, since the important prawn and shrimp fisheries (in intensity and scale) in the Mar del Plata area (38°20'S, 57°37'W) may indirectly affect the exploitation status of the studied population. Fil:Arrighetti, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Teso, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00762997_v55_n1_p163_Arrighetti http://hdl.handle.net/20.500.12110/paper_00762997_v55_n1_p163_Arrighetti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	age growth marine gastropod mortality production
spellingShingle	age growth marine gastropod mortality production Arrighetti, Florencia Teso, Valeria Penchaszadeh, Pablo Enrique Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
topic_facet	age growth marine gastropod mortality production
description	The population structure, particularly growth, age, mortality and somatic production of the olivid snail Olivancillaria deshayesiana were investigated. Annual formation of internal shell growth marks was confirmed by the record of stable oxygen isotopes in the shell, which reflects seasonal patterns of water temperature. A von Bertalanffy growth model fitted to 81 size-atage data pairs, indicating that O. deshayesiana may attain 31 mm SL in about 10 years. The estimated total mortality Z and natural mortality M were 0.651 y-1 and 0.361 y -1, respectively. Fishing mortality F was 0.290 y -1, and the exploitation rate E was 0.445, indicating that this population was not overexploited at the time of the study. However, this situation may well change in the future, since the important prawn and shrimp fisheries (in intensity and scale) in the Mar del Plata area (38°20'S, 57°37'W) may indirectly affect the exploitation status of the studied population.
author	Arrighetti, Florencia Teso, Valeria Penchaszadeh, Pablo Enrique
author_facet	Arrighetti, Florencia Teso, Valeria Penchaszadeh, Pablo Enrique
author_sort	Arrighetti, Florencia
title	Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
title_short	Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
title_full	Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
title_fullStr	Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
title_full_unstemmed	Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean
title_sort	age and growth of olivancillaria deshayesiana (gastropoda: olividae) in the southwestern atlantic ocean
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00762997_v55_n1_p163_Arrighetti http://hdl.handle.net/20.500.12110/paper_00762997_v55_n1_p163_Arrighetti
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Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean

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