29 巻 (1963) 10 号 p. 911-914
Adult individuals of sardine group caught in coastal waters of Hokkaido were judged to be composed of four stocks (K•L•M and N) mutually different in granograpical peculiarity.
Judged from the frequency of appearance, these stocks beared a close resemblance to stock K'•L'•M' and N', respectively, which have already been found as monopolistic constituents of catches of adult sardine obtained from in the Pacific coast of southern part of Honshu and Kyushu.