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, J., Penchaszadeh, P.E.
Formato: JOUR
Materias:
reproductive biology
secondary sexual characteristics
sexual maturity
size at maturity
Argentina
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
Acceso en línea: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 todo:paper_00253154_v83_n2_p293_Gimenez
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spelling todo:paper_00253154_v83_n2_p293_Gimenez2023-10-03T14:35:40Z Size at first sexual maturity in Zidona dufresnei (Caenogastropoda: Volutidae) of the south-western Atlantic Ocean (Mar del Plata, Argentina) Giménez, J. Penchaszadeh, P.E. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, J.
Penchaszadeh, P.E.
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.
format JOUR
author Giménez, J.
Penchaszadeh, P.E.
author_facet Giménez, J.
Penchaszadeh, P.E.
author_sort Giménez, J.
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)
url http://hdl.handle.net/20.500.12110/paper_00253154_v83_n2_p293_Gimenez
work_keys_str_mv AT gimenezj sizeatfirstsexualmaturityinzidonadufresneicaenogastropodavolutidaeofthesouthwesternatlanticoceanmardelplataargentina
AT penchaszadehpe sizeatfirstsexualmaturityinzidonadufresneicaenogastropodavolutidaeofthesouthwesternatlanticoceanmardelplataargentina
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