Incidencia y significancia de las estructuras císticas en ovarios de gádidos
| Autor: | Rosario Domínguez-Petit, Alexandre Alonso-Fernández, Fran Saborido-Rey |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
quiste
Zoology SH1-691 condición Aquatic Science Oceanography lcsh:Aquaculture. Fisheries. Angling Hake potencial reproductivo reproductive potential medicine Aquaculture. Fisheries. Angling Gadus atlantic cod Cyst lcsh:SH1-691 European hake bacalao atlántico cyst biology folículo ovárico european hake Merluccius merluccius medicine.disease biology.organism_classification condition Resorption Fishery Conditions ovarian follicle Atresia Atlantic cod merluza europea Reproductive potential |
| Zdroj: | Scientia Marina, Vol 75, Iss 2, Pp 359-368 (2011) Scientia Marina; Vol. 75 No. 2 (2011); 359-368 Scientia Marina; Vol. 75 Núm. 2 (2011); 359-368 Scientia Marina Consejo Superior de Investigaciones Científicas (CSIC) Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1886-8134 0214-8358 |
| DOI: | 10.3989/scimar.2011.75n2 |
| Popis: | Fish regulate egg production by atresia. Sometimes, oocytes are encapsulated in cystic structures that might remain in the ovary for months, altering female reproductive potential in future spawning seasons. Ovaries of Atlantic cod (Gadus morhua, L.) from the Flemish Cap and European hake (Merluccius merluccius, L.) from the Galician Shelf (NW Spain) were analysed from 1999 to 2006. The prevalence and abundance of ovarian cysts were estimated. Cyst prevalence increased with female size and/or age for both species, and decreased with high condition factor in hake. Cyst intensity does not correlate with any analysed factor. The size/age structure of spawning stock biomass and female condition could affect the prevalence of cysts in the ovaries, though it does not seem to affect cyst intensity in the ovary. Further research is needed to determine cyst resorption time and the impact that it has on egg production and consequently on stock reproductive potential. 5th Framework Program(Q5RS-2002-01825). Xunta de Galicia (XUGA-40201B98). COST Action FA0601 |
| Databáze: | OpenAIRE |
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