Bull. Jpn. Soc. Fish. Oceanogr. 70(1), Page 16-22, 2006
  Age and population structure of Japanese common squid, Todarodes pacificus, off northern Hokkaido during 2001

Kenji Sakaguchi†1 and Jun Nakata2

1Hokkaido Kushiro Fisheries Experimental Station, Hama, Kushiro, Hokkaido 085–0024, Japan
2Hokkaido Central Fisheries Experimental Station, Hamanaka-cho, Yoichi, Hokkaido 046–8555, Japan
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