The effect of light intensity on early life development of common
dentex Dentex dentex (L. 1758) larvae
K.
Firat,
Ş. Saka, D. Çoban-2003
Aquaculture
Research, 34(9):
727
Abstract:
The
effects of different levels of illumination on common dentex Dentex
dentex (L.) larvae have been examined. Illumination affected the
relationships between total length and digestive tube length, total length
and oil globule volume, and total length and yolk sac. The relationship
between total length development and yolk sac utilization in dark and light
conditions was found to be significant (P<0.05). However, it was
determined that the relationship between digestive tube development and oil
globule absorption was not significant (P>0.05). Besides, there is
no effect of different light intensities on absorption of yolk sac and oil
globule and digestive tube development (P>0.05). In addition,
total length development was not significant (P>0.05). Survival
rate was found to be not significantly different in dark conditions (P>0.05).
(Department of Aquaculture, Faculty of
Fisheries, Ege University, 35440, Urla-Iskele, Izmir,
Turkey. E-mail: kfirat@sufak.ege.edu.tr)