Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)

Size at sexual maturity was studied in Zidona dufresnei through analysis of gonadal tissue samples and secondary sexual characters. Individuals were sampled during two reproductive seasons (austral spring-summer) in the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and o...

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Autores principales: Giménez, Juliana, Penchaszadeh, Pablo Enrique
Publicado: 2003
Materias:
reproductive biology
secondary sexual characteristics
sexual maturity
size at maturity
Argentina
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v83_n2_p293_Gimenez
http://hdl.handle.net/20.500.12110/paper_00253154_v83_n2_p293_Gimenez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00253154_v83_n2_p293_Gimenez
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spelling paper:paper_00253154_v83_n2_p293_Gimenez2023-06-08T14:52:49Z Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina) Giménez, Juliana Penchaszadeh, Pablo Enrique reproductive biology secondary sexual characteristics sexual maturity size at maturity Argentina Atlantic Ocean Caenogastropoda Gastropoda Invertebrata Volutidae Size at sexual maturity was studied in Zidona dufresnei through analysis of gonadal tissue samples and secondary sexual characters. Individuals were sampled during two reproductive seasons (austral spring-summer) in the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and oocyte size frequency was used to estimate the stage of gonadal development in females. Gonadal maturity occurred prior to the development of secondary sexual characters. Size at first gonadal maturity in females was 12.8 cm shell length and in males 12.0 cm shell length, but size at which 50% of the population was mature was 15.7 cm in females and 15.0 cm in males. The results of this study could help to establish a minimal catching size. Fil:Giménez, J. 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. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v83_n2_p293_Gimenez http://hdl.handle.net/20.500.12110/paper_00253154_v83_n2_p293_Gimenez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic reproductive biology
secondary sexual characteristics
sexual maturity
size at maturity
Argentina
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
spellingShingle reproductive biology
secondary sexual characteristics
sexual maturity
size at maturity
Argentina
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
Giménez, Juliana
Penchaszadeh, Pablo Enrique
Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
topic_facet reproductive biology
secondary sexual characteristics
sexual maturity
size at maturity
Argentina
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
description Size at sexual maturity was studied in Zidona dufresnei through analysis of gonadal tissue samples and secondary sexual characters. Individuals were sampled during two reproductive seasons (austral spring-summer) in the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and oocyte size frequency was used to estimate the stage of gonadal development in females. Gonadal maturity occurred prior to the development of secondary sexual characters. Size at first gonadal maturity in females was 12.8 cm shell length and in males 12.0 cm shell length, but size at which 50% of the population was mature was 15.7 cm in females and 15.0 cm in males. The results of this study could help to establish a minimal catching size.
author Giménez, Juliana
Penchaszadeh, Pablo Enrique
author_facet Giménez, Juliana
Penchaszadeh, Pablo Enrique
author_sort Giménez, Juliana
title Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
title_short Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
title_full Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
title_fullStr Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
title_full_unstemmed Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina)
title_sort size at first sexual maturity in zidona dufresnei (caenogastropoda: volutidae) of the south-western atlantic ocean (mar del plata, argentina)
publishDate 2003
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v83_n2_p293_Gimenez
http://hdl.handle.net/20.500.12110/paper_00253154_v83_n2_p293_Gimenez
work_keys_str_mv AT gimenezjuliana sizeatfirstsexualmaturityinzidonadufresneicaenogastropodavolutidaeofthesouthwesternatlanticoceanmardelplataargentina
AT penchaszadehpabloenrique sizeatfirstsexualmaturityinzidonadufresneicaenogastropodavolutidaeofthesouthwesternatlanticoceanmardelplataargentina
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