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- Title
Efecto de la Temperatura en la Supervivencia Embrionaria y Primeros Estadios Larvales de Psetta máxima.
- Authors
Pepe-Victoriano, Renzo; Araya, Miguel; Faúndez, Víctor
- Abstract
The mortality rate in embryonic and larval stages of marine fish is associated with the success of a culture, being necessary to optimize the procedures from this to the level of embryonic development and early larval stages for an optimal larval survival and better juvenile production. In order to evaluate temperature effect on embryonic and larval survival of Turbot, fertilized eggs of two reproductives were transferred to the conical incubation tanks at three different temperatures (12.5; 15.5 and 18.5°C). The eggs that were at extreme temperatures (12.5 y 18.5°C) had a minor embryonic development, with a daily mortality rate significantly highe in the first three days and at the end of incubation, especially during the egg eclosion (10% survival), and without variations at the end of the experiment, when larvae had six days of life. The duration of embryonic development up to the egg eclosion was also determined by incubation temperature, with a higher number of hatched eggs and harvested at the temperature of 15.5°C (20% survival). Significant differences in the embryonic development of Turbot at three different incubation temperatures indicate the importance of this parameter on the viability of embryonic development and early larval stages of P. maxima.
- Subjects
PSETTA maxima; FISH larvae; MARINE fish anatomy; TEMPERATURE effect; EGG incubation; EMBRYOLOGY; FERTILIZATION (Biology)
- Publication
International Journal of Morphology, 2012, Vol 30, Issue 4, p1551
- ISSN
0717-9367
- Publication type
Article
- DOI
10.4067/S0717-95022012000400046