The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat

7 páginas, 5 figuras, 2 tablas

Detalles Bibliográficos
Autores: Haslob, H., Kraus, Gerd, Saborido-Rey, Fran
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46933
Acceso en línea:http://hdl.handle.net/10261/46933
Access Level:acceso abierto
Palabra clave:Oocyte recruitment
Postovulatory follicles
Sprattus sprattus
Spawning traits
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spelling The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic spratHaslob, H.Kraus, GerdSaborido-Rey, FranOocyte recruitmentPostovulatory folliclesSprattus sprattusSpawning traits7 páginas, 5 figuras, 2 tablasOvaries of Baltic sprat (Sprattus sprattus balticus S.) were analysed histologically to identify stages of postovulatory follicles (POF) and to assess the oocyte development pattern. Samples were taken every 3 h during a 24 h trawl survey conducted in the Bornholm Basin in April 2007. Gonad histology revealed spawning of sprat throughout the day which hampered the exact ageing of POFs by the postovulatory follicle method and therefore did not allow direct estimation of spawning frequency. However, it was possible to define four stages of POFs, according to their histological features. The occurrence of these POF stages (I to IV) corresponded clearly to the development of the leading oocyte cohort. Further, the oocyte recruitment pattern revealed that the spawning batch can be identified prior to hydration. The POF stages I and II were present almost exclusively in vitellogenic ovaries, POF III were found in ovaries in the germinal vesicle stage, and the most deteriorated POF stage IV was found in actively spawning fish with hydrated oocytes. Since POF were absent only in very few ovaries (5%), and in each ovary in general only one POF stage was present, the duration of POF degeneration approximately equals the average batch interval, i.e. the time lag between subsequent spawning events. The results of the present study will serve as basis for future studies on Baltic sprat oocyte recruitment and daily spawning fraction.Peer reviewedElsevier201220122012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/46933reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.seares.2011.09.001info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/469332026-05-22T06:33:51Z
dc.title.none.fl_str_mv The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
title The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
spellingShingle The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
Haslob, H.
Oocyte recruitment
Postovulatory follicles
Sprattus sprattus
Spawning traits
title_short The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
title_full The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
title_fullStr The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
title_full_unstemmed The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
title_sort The dynamics of postovulatory follicle degeneration and oocyte growth in Baltic sprat
dc.creator.none.fl_str_mv Haslob, H.
Kraus, Gerd
Saborido-Rey, Fran
author Haslob, H.
author_facet Haslob, H.
Kraus, Gerd
Saborido-Rey, Fran
author_role author
author2 Kraus, Gerd
Saborido-Rey, Fran
author2_role author
author
dc.subject.none.fl_str_mv Oocyte recruitment
Postovulatory follicles
Sprattus sprattus

Spawning traits
topic Oocyte recruitment
Postovulatory follicles
Sprattus sprattus
Spawning traits
description 7 páginas, 5 figuras, 2 tablas
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/46933
url http://hdl.handle.net/10261/46933
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.seares.2011.09.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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