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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Detalles Bibliográficos
Publicado:	2002
Materias:	reproductive biology reproductive cycle Atlantic Ocean Caenogastropoda Gastropoda Invertebrata Volutidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v140_n4_p755_Gimenez 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	paper:paper_00253162_v140_n4_p755_Gimenez
record_format	dspace
spelling	paper:paper_00253162_v140_n4_p755_Gimenez2023-06-08T14:52:58Z Reproductive cycle of Zidona dufresnei (Caenogastropoda: Volutidae) from the southwestern Atlantic Ocean 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. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v140_n4_p755_Gimenez 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 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.
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
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v140_n4_p755_Gimenez http://hdl.handle.net/20.500.12110/paper_00253162_v140_n4_p755_Gimenez
_version_	1768543407570944000

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

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