Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic

Autores
Campodónico, Silvana; Macchi, Gustavo Javier; Lomovasky, Betina Judith; Lasta, Mario
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Campodónico, Silvana. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
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
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
Fil: Lasta, Mario. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Materia
GAMETOGENESIS
REPRODUCTIVE CYCLE
SCALLOPS
SIZE OF FIRST MATURITY
ZYGOCHLAMYS PATAGONICA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/113085
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/113085
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western AtlanticCampodónico, SilvanaMacchi, Gustavo JavierLomovasky, Betina JudithLasta, MarioGAMETOGENESISREPRODUCTIVE CYCLESCALLOPSSIZE OF FIRST MATURITYZYGOCHLAMYS PATAGONICAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The 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.Fil: Campodónico, Silvana. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: 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; ArgentinaFil: 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; ArgentinaFil: Lasta, Mario. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaCambridge University Press2008-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/113085Campodónico, 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; 603-6110025-3154CONICET DigitalCONICETenginfo: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/A9DEB0D34D0F0B637B803DC628C02A6Cinfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315408001033info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:02Zoai:ri.conicet.gov.ar:11336/113085instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:34:02.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
title Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
spellingShingle Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
Campodónico, Silvana
GAMETOGENESIS
REPRODUCTIVE CYCLE
SCALLOPS
SIZE OF FIRST MATURITY
ZYGOCHLAMYS PATAGONICA
title_short Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
title_full Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
title_fullStr Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
title_full_unstemmed Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
title_sort Reproductive cycle of the Patagonian scallop Zygochlamys patagonica in the south-western Atlantic
dc.creator.none.fl_str_mv Campodónico, Silvana
Macchi, Gustavo Javier
Lomovasky, Betina Judith
Lasta, Mario
author Campodónico, Silvana
author_facet Campodónico, Silvana
Macchi, Gustavo Javier
Lomovasky, Betina Judith
Lasta, Mario
author_role author
author2 Macchi, Gustavo Javier
Lomovasky, Betina Judith
Lasta, Mario
author2_role author
author
author
dc.subject.none.fl_str_mv GAMETOGENESIS
REPRODUCTIVE CYCLE
SCALLOPS
SIZE OF FIRST MATURITY
ZYGOCHLAMYS PATAGONICA
topic GAMETOGENESIS
REPRODUCTIVE CYCLE
SCALLOPS
SIZE OF FIRST MATURITY
ZYGOCHLAMYS PATAGONICA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
Fil: Campodónico, Silvana. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
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
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
Fil: Lasta, Mario. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
description 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.
publishDate 2008
dc.date.none.fl_str_mv 2008-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/113085
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
0025-3154
CONICET Digital
CONICET
url http://hdl.handle.net/11336/113085
identifier_str_mv 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
0025-3154
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 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
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315408001033
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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