Abstract:
Members of Odontocymbiola magellanica (Volutidae, Odontocymbiolinae) inhabit Argentinean waters from 35°S to the Magallanes Strait. The reproductive biology of this potential fishery resource has not been studied before. Male individuals reach maturity at 80 mm and females at 90 mm, corresponding to ∼7 and 8 years of age, respectively. Mating was observed in the field in all seasons and females possess live spermatozoa in the bursa copulatrix all year round, suggesting that living sperm can be preserved for several months. Major oviposition events occurred July (winter) to December (summer) during the 5 years sampled, as characterized by aggregation of females coincident with increasing photoperiod from winter to summer solstices, and not, apparently, by increase in water temperature. Males showed gametogenic activity throughout the year. Gamete resorption occurred in both sexes. Ultrastructural studies showed that oocytes are attached to companion cells, which enables cell-cell communication and provides support until evacuation; males showed normal sperm cells and two types of parasperms. If populations of O. magellanica are commercially exploited in the future, we propose a minimum catch size of 100 mm, and a ban on the collection of females and egg capsules during the reproductive season. © 2008, The Authors. Journal compilation © 2008, The American Microscopical Society, Inc.
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Artículo
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Título: | Seasonal reproduction and sexual maturity in Odontocymbiola magellanica (Neogastropoda, Volutidae) |
Autor: | Bigatti, G.; Marzinelli, E.M.; Penchaszadeh, P.E. |
Filiación: | Patagonian National Center (CENPAT), CONICET, U9120ACV, Puerto Madryn, Chubut, Argentina Biology Department, Faculty of Physical and Natural Sciences, University of Buenos Aires, C1428EHA, Buenos Aires, Argentina Centre for Research on Ecological Impacts of Coastal Cities, Marine Ecology Laboratories, A11, University of Sydney, Sydney, NSW 2006, Australia
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Palabras clave: | Gastropods; Gonadal ultrastructure; Oviposition; Patagonia; Bursa (gastropod); Gastropoda; Neogastropoda; Volutidae |
Año: | 2008
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Volumen: | 127
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Número: | 3
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Página de inicio: | 314
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Página de fin: | 326
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DOI: |
http://dx.doi.org/10.1111/j.1744-7410.2008.00139.x |
Título revista: | Invertebrate Biology
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Título revista abreviado: | Invertebr. Biol.
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ISSN: | 10778306
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10778306_v127_n3_p314_Bigatti |
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Citas:
---------- APA ----------
Bigatti, G., Marzinelli, E.M. & Penchaszadeh, P.E.
(2008)
. Seasonal reproduction and sexual maturity in Odontocymbiola magellanica (Neogastropoda, Volutidae). Invertebrate Biology, 127(3), 314-326.
http://dx.doi.org/10.1111/j.1744-7410.2008.00139.x---------- CHICAGO ----------
Bigatti, G., Marzinelli, E.M., Penchaszadeh, P.E.
"Seasonal reproduction and sexual maturity in Odontocymbiola magellanica (Neogastropoda, Volutidae)"
. Invertebrate Biology 127, no. 3
(2008) : 314-326.
http://dx.doi.org/10.1111/j.1744-7410.2008.00139.x---------- MLA ----------
Bigatti, G., Marzinelli, E.M., Penchaszadeh, P.E.
"Seasonal reproduction and sexual maturity in Odontocymbiola magellanica (Neogastropoda, Volutidae)"
. Invertebrate Biology, vol. 127, no. 3, 2008, pp. 314-326.
http://dx.doi.org/10.1111/j.1744-7410.2008.00139.x---------- VANCOUVER ----------
Bigatti, G., Marzinelli, E.M., Penchaszadeh, P.E. Seasonal reproduction and sexual maturity in Odontocymbiola magellanica (Neogastropoda, Volutidae). Invertebr. Biol. 2008;127(3):314-326.
http://dx.doi.org/10.1111/j.1744-7410.2008.00139.x