Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean

Gonadal development of Zidona dufresnei (Donovan, 1823) (Caenogastropoda: Volutidae) was studied over a period of two consecutive years, through analysis of gonadal tissue. Individuals were sampled monthly at the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and oocyte s...

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Autores principales: Giménez, J., Penchaszadeh, P.E.
Formato: JOUR
Materias:
reproductive biology
reproductive cycle
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00253162_v140_n4_p755_Gimenez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00253162_v140_n4_p755_Gimenez
record_format dspace
spelling todo:paper_00253162_v140_n4_p755_Gimenez2023-10-03T14:35:52Z Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean Giménez, J. Penchaszadeh, P.E. reproductive biology reproductive cycle Atlantic Ocean Caenogastropoda Gastropoda Invertebrata Volutidae Gonadal development of Zidona dufresnei (Donovan, 1823) (Caenogastropoda: Volutidae) was studied over a period of two consecutive years, through analysis of gonadal tissue. Individuals were sampled monthly at the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and oocyte size was used to estimate the stage of gonadal development in females. The reproductive season in this species in the sampled locality extended from October to March (austral spring-summer). During summer, a stage of advanced gonadal development and spawning predominated in the adult population. In autumn, gonads were generally under atresia; during wintertime (June-August), they underwent a period of recovery that lasted until the spring months, when gametes were released again. Synchronism between both sexes was evident. Marked periods of spawning were followed by resorption periods and then a growing phase; it was very clear that reproductive seasonality was linked to changes in bottom water temperature. These results suggest that Z. dufresnei gonads have a yearly cycle of gamete production, with two major activity peaks in September-October and January-February. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00253162_v140_n4_p755_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
reproductive cycle
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
spellingShingle reproductive biology
reproductive cycle
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
Giménez, J.
Penchaszadeh, P.E.
Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
topic_facet reproductive biology
reproductive cycle
Atlantic Ocean
Caenogastropoda
Gastropoda
Invertebrata
Volutidae
description Gonadal development of Zidona dufresnei (Donovan, 1823) (Caenogastropoda: Volutidae) was studied over a period of two consecutive years, through analysis of gonadal tissue. Individuals were sampled monthly at the Mar del Plata area, Argentina. Gonadosomatic index was estimated for males and oocyte size was used to estimate the stage of gonadal development in females. The reproductive season in this species in the sampled locality extended from October to March (austral spring-summer). During summer, a stage of advanced gonadal development and spawning predominated in the adult population. In autumn, gonads were generally under atresia; during wintertime (June-August), they underwent a period of recovery that lasted until the spring months, when gametes were released again. Synchronism between both sexes was evident. Marked periods of spawning were followed by resorption periods and then a growing phase; it was very clear that reproductive seasonality was linked to changes in bottom water temperature. These results suggest that Z. dufresnei gonads have a yearly cycle of gamete production, with two major activity peaks in September-October and January-February.
format JOUR
author Giménez, J.
Penchaszadeh, P.E.
author_facet Giménez, J.
Penchaszadeh, P.E.
author_sort Giménez, J.
title Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
title_short Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
title_full Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
title_fullStr Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
title_full_unstemmed Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean
title_sort reproductive cycle of zidona dufresnei (caenogastropoda: volutidae) from the southwestern atlantic ocean
url http://hdl.handle.net/20.500.12110/paper_00253162_v140_n4_p755_Gimenez
work_keys_str_mv AT gimenezj reproductivecycleofzidonadufresneicaenogastropodavolutidaefromthesouthwesternatlanticocean
AT penchaszadehpe reproductivecycleofzidonadufresneicaenogastropodavolutidaefromthesouthwesternatlanticocean
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