Effects of continuous flow rate on development and mortality of halibut yolk sac larvae

Halibut (Hippoglossus hippoglossus L.) yolk sac larvae were raised in incubators with different rates of continuous flow. Most larvae died between Days 10 and 29 after hatching. Rate of mortality increased with increasing rate of flow, but in a stagnant incubator there were no surviving larvae beyond Day 12 after hatching. Larval dry weight decreased with increasing rate of flow, whereas yolk sac dry weight did not differ significantly. Yolk sac utilization efficiency was higher with lower flow