English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/144490
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Updating control of puberty in male European sea bass: A holistic approach

AuthorsCarrillo, Manuel ; Espigares, F. ; Felip, Alicia ; Escobar, Sebastián ; Molés, Gregorio ; Rodríguez, Rafael ; Alvarado, M. V. ; Gómez, Ana ; Zanuy, Silvia
KeywordsPhotolabile period
Critical size
Daily-seasonal rhythms
European sea bass
Issue Date15-Sep-2015
CitationGeneral and Comparative Endocrinology 221: 42-53 (2015)
AbstractPuberty is the process by which an immature animal acquires the ability to reproduce for the first time; its onset occurs soon after sexual differentiation and is characterized by the beginning of gametogenesis in both sexes. Here we present new insights on when and how the onset of puberty occurs in male European sea bass, its dependence on reaching a critical size, and how it can be controlled by photoperiod, revealing the existence of a photolabile period with important applications in aquaculture. Regarding size, apparently only European sea bass above a certain size threshold attain the ability to carry out gametogenesis during their first year of life, while their smaller counterparts fail to do so. This could imply that fish need to achieve an optimal threshold of hormone production, particularly from the kisspeptin/Gnrh/Gth systems, in order to initiate and conclude puberty. However, a long-term restricted feeding regime during the second year of life did not prevent the onset of puberty, thus suggesting that the fish are able to maintain the reproductive function, even at the expense of other functions. Finally, the study of daily hormonal rhythms under different photoperiod regimes revealed the equivalence between their core values and those of seasonal rhythms, in such a way that the daily rhythms could be considered as the functional units of the seasonal rhythms.
Publisher version (URL)https://doi.org/10.1016/j.ygcen.2015.06.019
Identifiersissn: 1095-6840
Appears in Collections:(IATS) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.