NIPPON SUISAN GAKKAISHI
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
The Ecology of certain Copepods in Japan Sea and Mutsu Bay
S. KOKUBO
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1950 Volume 16 Issue 5 Pages 215-220

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Abstract

The ecology of Calanus plumchrus and Calanus cristatus of Japan Sea and Mutsu Bay was studied and compared. These two Copepods are regular frequenters of Mutsu Bay, and migrates from Japan Sea into Mutsu Bay during April- May. The present result, however, seems to show that at the time of the present collection (March 18th, 1950) C. plumchrus has been accomodated yet in great depth in Japan Sea, whereas C. cristatus already began upward migration, the migration of the latter species seems to take place a little earlier than that of the former.

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© The Japanese Society of Fisheries Science
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