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dc.contributor.author
Campodónico, Silvana
dc.contributor.author
Macchi, Gustavo Javier
dc.contributor.author
Lomovasky, Betina Judith
dc.contributor.author
Lasta, Mario
dc.date.available
2020-09-02T20:58:04Z
dc.date.issued
2008-05
dc.identifier.citation
Campodónico, Silvana; Macchi, Gustavo Javier; Lomovasky, Betina Judith; Lasta, Mario; Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 88; 3; 5-2008; 603-611
dc.identifier.issn
0025-3154
dc.identifier.uri
http://hdl.handle.net/11336/113085
dc.description.abstract
The reproductive cycle of Zygochlamys patagonica was studied from October 1999 to February 2001 in a bed located in the south-western Atlantic (Reclutas bed 39°24′ S-55°56′W). Scallops were collected monthly and the sexual maturity stages were determined histologically (N = 508). Sex-ratio was 1:1 (t-test P > 0.05). The size of first sexual maturity was estimated from males of an average of 36.63 mm and females of 36.31 mm of shell height. The relative gonadal condition index (RGCI) showed an annual cycle, with higher values during winter-spring and lower values during summer-autumn; an inverse relationship for the relative muscle condition index (RMCI) was observed with maximum values in early summer. Thus, a reallocation of energy from soma to gonad appears to be inevitable to meet energy demand of gonad development. Seven histological stages of sexual maturity were established for both sexes: (1) immature; (2) early maturity; (3) advanced maturity,;(4) ripe; (5) spawning; (6) spent; and (7) recovery. Individuals in early and advanced maturity were found throughout the year; however, they were found more frequently between June and September. Spawning began in October (early spring) and extended through March (late summer-early autumn) coexisting with early and advanced maturity stages supported by the annual variation of the RGCI and the food availability into the system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GAMETOGENESIS
dc.subject
REPRODUCTIVE CYCLE
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SCALLOPS
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SIZE OF FIRST MATURITY
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ZYGOCHLAMYS PATAGONICA
dc.subject.classification
Biología Marina, Limnología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-08-18T19:10:23Z
dc.journal.volume
88
dc.journal.number
3
dc.journal.pagination
603-611
dc.journal.pais
Reino Unido
dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Campodónico, Silvana. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
dc.description.fil
Fil: Macchi, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
dc.description.fil
Fil: Lomovasky, Betina Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Lasta, Mario. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
dc.journal.title
Journal of the Marine Biological Association of the United Kingdom
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/reproductive-cycle-of-the-patagonian-scallop-zygochlamys-patagonica-in-the-southwestern-atlantic/A9DEB0D34D0F0B637B803DC628C02A6C
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S0025315408001033
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