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

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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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Autores principales: Arrighetti, F., Teso, V., Brey, T., MacKensen, A., Penchaszadeh, P.E.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2012
Materias:
age
growth
marine gastropod
mortality
production
Acceso en línea: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 paperaa:paper_00762997_v55_n1_p163_Arrighetti
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spelling paperaa:paper_00762997_v55_n1_p163_Arrighetti2023-06-12T16:45:55Z Age and growth of olivancillaria deshayesiana (gastropoda: Olividae) in the southwestern Atlantic Ocean Malacologia 2012;55(1):163-170 Arrighetti, F. Teso, V. Brey, T. MacKensen, A. Penchaszadeh, P.E. 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 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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)
language Inglés
orig_language_str_mv eng
topic age
growth
marine gastropod
mortality
production
spellingShingle age
growth
marine gastropod
mortality
production
Arrighetti, F.
Teso, V.
Brey, T.
MacKensen, A.
Penchaszadeh, P.E.
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.
format Artículo
Artículo
publishedVersion
author Arrighetti, F.
Teso, V.
Brey, T.
MacKensen, A.
Penchaszadeh, P.E.
author_facet Arrighetti, F.
Teso, V.
Brey, T.
MacKensen, A.
Penchaszadeh, P.E.
author_sort Arrighetti, F.
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 http://hdl.handle.net/20.500.12110/paper_00762997_v55_n1_p163_Arrighetti
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AT mackensena ageandgrowthofolivancillariadeshayesianagastropodaolividaeinthesouthwesternatlanticocean
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