Effect of Different Rearing
Systems on Survival Rate of Hatchery Reared Black Sea Turbot, Scophthalmus
maximus
T. Şahin, C. Üstündağ-2004
Turkish Journal of Fisheries and Aquatic Sciences,
3(1) :25-27
Abstract:
Rearing experiments were carried out to examine the effect of different
rearing systems on survival of hatchery reared Black Sea turbot,
Scophthalmus maximus. The larvae were reared under natural light regime from
hatching until 20 days old. Three groups were set as follows: Group I:
continuously exchanged sea water (open-system), group II: stagnant seawater
treated with 10 ppm EDTA, group III: stagnant seawater. The feeding regime
consisted of Nannochloropsis, Brachionus and Artemia. From initial total
length of 3.44±0.07 mm on day 0, larvae grew to 8.30±0.39 (group I), 8.45±0.56
(group II) and 8.51±0.50 mm (group III) on day 20. Survival rates were
21.1, 15.3 and 9.1% in group I, II, III, respectively.
(Central Fisheries Research Institute, Trabzon,
Turkey, E-mail: t_sahin@mynet.com)