Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/49702
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Exposure of larvae to daily thermocycles affects gonad development, sex ratio, and sexual steroids in Solea senegalensis, kaup |
Otros títulos: | Early exposure to daily thermocycles in Solea senegalensis | Autor: | Blanco-Vives, Borja; Vera, Luisa María; Ramos, Jesús CSIC; Bayarri, María J. CSIC; Mañanós, Evaristo L. CSIC ORCID; Sánchez-Vázquez, F. J. | Fecha de publicación: | 1-mar-2011 | Editor: | John Wiley & Sons | Citación: | Journal of Experimental Zoology-Part A-Ecolog Genet and Physiolo 315 A(3): 162-169 (2011) | Resumen: | The effect of water temperature during the development of fish larvae on sex differentiation is well known, but not so well known is the impact of the daily thermocycles. Our aim was to investigate the effect of early exposure of Senegal sole larvae to different temperature cycles on gonad development, sex ratio and sex steroid (11-ketotestosterone, 11-KT; estradiol, E2; and testosterone, T) content in muscle extracts of juveniles. From 1 to 97 DPH (days post-hatching) fish larvae and post larvae were subjected to three temperature regimes: TC (Thermophase-Cryophase); CT (Cryophase-Thermophase); and constant temperature. In fish exposed to TC, sex determination occurred earlier, since 90% of soles were males/females at 110 DPH, whereas 45% of fish under CT were undifferentiated at that time. Fish under TC showed the highest growth rates, followed by fish under constant temperature and by fish under CT, the differences being statistically significant between the TC and CT groups. Regarding sex ratio, juveniles exposed to TC showed a higher proportion of females than fish under CT or constant temperature. Under TC, fish showed the highest concentration of E2, while 11-KT concentration was highest in fish under CT and constant temperature. Fish under constant temperature and CT showed higher T levels than those under TC. These results provide the first insights into the effect of daily thermocycles on sex differentiation in fish, and underline the key role of natural environmental cycles on the control of sex ratios during larval development, which may be applied to the manipulation of sex ratio in aquaculture. | Descripción: | 28 p., 6 figures and references | Versión del editor: | http://dx.doi.org/10.1002/jez.664 | URI: | http://hdl.handle.net/10261/49702 | DOI: | 10.1002/jez.664 | ISSN: | 1932-5223 | E-ISSN: | 1932-5231 |
Aparece en las colecciones: | (IATS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Exposure of larvae to daily thermocycles.pdf | 320,03 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
26
checked on 03-may-2024
WEB OF SCIENCETM
Citations
22
checked on 27-feb-2024
Page view(s)
343
checked on 06-may-2024
Download(s)
415
checked on 06-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.