effects of light intensity on early life development of gilthead sea
bream larvae (sparus aurata)
S. Saka, K. Firat, C. Süzer-2001
The Israeli Journal of Aquaculture Bamidgeh,
53(3-4): 139-146
Abstract:
The effects of different levels of illumination on
sea bream (Sparus aurata, L. 1758) larvae were examined. The best total
length development and highest survival rate were achieved in a dark
environment. Illumination affected the relationships between total length
and digestive tube length, total length and oil globule volume, and total
length and yolk sac volume. The relationships between total length and
digestive tube length, and total length and oil globule volume were not
significantly different (p>0.05) among groups whereas the relationship
between total length and yolk sac volume was significantly different
(p>0.05) between the group under 450 lux illumination and the group under
30 lux. All the relationships were significantly different (p>0.05)
between groups kept in complete darkness and those which were illuminated.
(Department of Aquaculture, Faculty of Fisheries, Ege
University, 35440 Urla-Iskele, Izmir, Turkey)