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ID 30211
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title alternative
北部北太平洋および周辺海域における表層生物の分布と生物学(1) : 1993年秋季のオホーツク海南部と北西太平洋における魚類といか類
creator
Ueno, Yasuhiro
Azuma, Teruo
Ogura, Miki
Startsev, Alexander V.
Ivanova, Irena M.
Morris, John F. T.
subject
oceanic distribution
Pacific salmon
epipelagic fishes and squids
Okhotsk Sea
North Pacific Ocean
分布
生物
サケ科
魚類
海域
太平洋
イカ類
オホーツク海
NDC
Zoology
abstract
A surface-trawl survey was conducted by the R/V Kaiyo mare in the southern Okhotsk Sea and western North Pacific Ocean off the Kuril Islands in October and November 1993. The distributions and abundances of the species caught are described and discussed. Twenty-four fish species (1 lamprey, 1 shark, and 22 teleosts) and one squid species were identified. Juvenile Pacific salmon (6 species of the genus Oncorhynchus) were the most abundant, followed by myctophids, juvenile arabesque greenling (Pleurogrammus azonus), and gonatids including boreopacific gonate squid (Gonatopsis borealis) and probably schoolmaster gonate squid (Berryteuthis magister). Northern smoothtongue (Leuroglossus schmidti) were also abundant. Juvenile arabesque greenling were abundantly taken in the Okhotsk Sea in October but disappeared from the surface waters in November because they settled on the bottom. There were marked differences in the oceanic distribution of arabesque greenling and Atka mackerel (P. monopter ygius), suggesting that these species segregate their habitats. Northern smoothtongue mostly occurred in the Okhotsk Sea, and myctophids were caught in the North Pacific Ocean. We conclude that the surface layer of the southern Okhotsk Sea provides favorable habitats for the feeding and growth of juvenile salmonids, arabesque greenling, and other epipelagic migratory species from summer to mid-autumn but ends its role in late autumn with decreasing sea-surface temperatures.
journal title
遠洋水産研究所研究報告
volume
Volume 33
start page
149
end page
170
date of issued
1996-03
publisher
遠洋水産研究所
issn
0386-7285
ncid
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
relation is version of URL
http://rms1.agsearch.agropedia.affrc.go.jp/contents/library/jnr/enyo.html
department
Graduate School of Biosphere Science