Status of an intensive cod rearing project in Norway.
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Original versionThis report is not to be quoted without prior consultation with the General Secretary.
Cod yolk sac larvae were start fed with natural plancton in plastic pens. Eggs were obtained from a plastic spawning pen where cod spawned naturally. An attempt to incubate eggs directly in the start feed pens failed. Planctonts were collected with two propeller pumps coupled to double gauze cones. Hoses led the plancton to a collecting bag from where it was distributed to the pens by an automatic pump. Survival through start feeding was 2,5 - 5%. A yet unexplained heavy mortality occurred 70-100 days after hatching.