抄録
With the view of obtaining knowledge of the stock of Gadus macrocephalus TILESIUS, the results of investigations on the age and body-lengthe of landed fish, and of marking and fishing experiments were treated. It was shown that Gadus macrocephalus TILESIUS fished around Japan belongs to a closed stock, the survival rate of with was found to be 35. The fish which appeare on the coast of Chôsen amounts to 18% of the whole stock, and 23% of those fishes are caught there during one fishing season.
