Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina

The edible volutid snail Adelomelon ancilla occurs on the Argentine coast and may have the capacity to serve as source of support for local fisheries. However, knowledge of its reproduction is lacking. Over 3 years (from September 2000 to July 2004) we studied the oviposition at Golfo Nuevo, Patagon...

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Detalles Bibliográficos
Autores principales: Penchaszadeh, Pablo Enrique, Zabala, María Soledad, Bigatti, Gregorio
Publicado: 2009
Materias:
diving behavior
edible species
egg production
fishery regulation
gamete
imposex
oviposition
reproductive status
shipping
snail
spawning
sperm
Argentina
Chubut
Golfo Nuevo
Patagonia
South America
Adelomelon
Ancilla
Gastropoda
Helix pomatia
Volutidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v156_n9_p1929_Penchaszadeh
http://hdl.handle.net/20.500.12110/paper_00253162_v156_n9_p1929_Penchaszadeh
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00253162_v156_n9_p1929_Penchaszadeh
record_format dspace
spelling paper:paper_00253162_v156_n9_p1929_Penchaszadeh2023-06-08T14:53:02Z Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina Penchaszadeh, Pablo Enrique Zabala, María Soledad Bigatti, Gregorio diving behavior edible species egg production fishery regulation gamete imposex oviposition reproductive status shipping snail spawning sperm Argentina Chubut Golfo Nuevo Patagonia South America Adelomelon Ancilla Gastropoda Helix pomatia Volutidae The edible volutid snail Adelomelon ancilla occurs on the Argentine coast and may have the capacity to serve as source of support for local fisheries. However, knowledge of its reproduction is lacking. Over 3 years (from September 2000 to July 2004) we studied the oviposition at Golfo Nuevo, Patagonia by diving. Monthly collections were performed to examine gonadal stages histologically during 2002-2003. Gamete development stages corresponded with the expected period for oviposition occurring from July to November, a time of increasing day length. Oviposition also took place in March when water temperature attained a maximum of 18°C. Following the spawning period, remaining gametes were resorpted in both sexes. Males contained sperm throughout the year, parasperm and eusperm forms were found within the same acinus. Oogonia/oocytes ranged from 20 to 240 μm in diameter during oogenesis. Females commenced laying egg capsules from a shell length of 114 mm. Reproduction is compared with other fishable volutid snails from the Argentine shelf, and suggests the need to apply certain fishing restrictions if the resource begins to be utilized commercially. The imposex condition was found in snails from some shipping areas. The frequency of this condition declined with distance from the port. © Springer-Verlag 2009. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Zabala, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bigatti, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v156_n9_p1929_Penchaszadeh http://hdl.handle.net/20.500.12110/paper_00253162_v156_n9_p1929_Penchaszadeh
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic diving behavior
edible species
egg production
fishery regulation
gamete
imposex
oviposition
reproductive status
shipping
snail
spawning
sperm
Argentina
Chubut
Golfo Nuevo
Patagonia
South America
Adelomelon
Ancilla
Gastropoda
Helix pomatia
Volutidae
spellingShingle diving behavior
edible species
egg production
fishery regulation
gamete
imposex
oviposition
reproductive status
shipping
snail
spawning
sperm
Argentina
Chubut
Golfo Nuevo
Patagonia
South America
Adelomelon
Ancilla
Gastropoda
Helix pomatia
Volutidae
Penchaszadeh, Pablo Enrique
Zabala, María Soledad
Bigatti, Gregorio
Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
topic_facet diving behavior
edible species
egg production
fishery regulation
gamete
imposex
oviposition
reproductive status
shipping
snail
spawning
sperm
Argentina
Chubut
Golfo Nuevo
Patagonia
South America
Adelomelon
Ancilla
Gastropoda
Helix pomatia
Volutidae
description The edible volutid snail Adelomelon ancilla occurs on the Argentine coast and may have the capacity to serve as source of support for local fisheries. However, knowledge of its reproduction is lacking. Over 3 years (from September 2000 to July 2004) we studied the oviposition at Golfo Nuevo, Patagonia by diving. Monthly collections were performed to examine gonadal stages histologically during 2002-2003. Gamete development stages corresponded with the expected period for oviposition occurring from July to November, a time of increasing day length. Oviposition also took place in March when water temperature attained a maximum of 18°C. Following the spawning period, remaining gametes were resorpted in both sexes. Males contained sperm throughout the year, parasperm and eusperm forms were found within the same acinus. Oogonia/oocytes ranged from 20 to 240 μm in diameter during oogenesis. Females commenced laying egg capsules from a shell length of 114 mm. Reproduction is compared with other fishable volutid snails from the Argentine shelf, and suggests the need to apply certain fishing restrictions if the resource begins to be utilized commercially. The imposex condition was found in snails from some shipping areas. The frequency of this condition declined with distance from the port. © Springer-Verlag 2009.
author Penchaszadeh, Pablo Enrique
Zabala, María Soledad
Bigatti, Gregorio
author_facet Penchaszadeh, Pablo Enrique
Zabala, María Soledad
Bigatti, Gregorio
author_sort Penchaszadeh, Pablo Enrique
title Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
title_short Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
title_full Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
title_fullStr Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
title_full_unstemmed Reproduction and imposex in the edible snail Adelomelon ancilla from northern Patagonia, Argentina
title_sort reproduction and imposex in the edible snail adelomelon ancilla from northern patagonia, argentina
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253162_v156_n9_p1929_Penchaszadeh
http://hdl.handle.net/20.500.12110/paper_00253162_v156_n9_p1929_Penchaszadeh
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AT zabalamariasoledad reproductionandimposexintheediblesnailadelomelonancillafromnorthernpatagoniaargentina
AT bigattigregorio reproductionandimposexintheediblesnailadelomelonancillafromnorthernpatagoniaargentina
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