外観上正常なサケ，カラフトマス及びサクラマス成熟親魚の Aeromonas salmonicida 保有状況

野村, 哲一; 吉水, 守; 木村, 喬久

魚病研究, 1991, 26(3), 139-147

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アクセス権
open access
URI
https://hdl.handle.net/2115/38334
タイトル
外観上正常なサケ，カラフトマス及びサクラマス成熟親魚の Aeromonas salmonicida 保有状況
Prevalence of Aeromonas salmonicida in the chum salmon (Oncorhynchus keta), pink salmon (O. gorbuscha), and masu salmon (O. masou) returning to rivers in Hokkaido
著者
野村, 哲一 ; 吉水, 守 ; 木村, 喬久
著者名
野村, 哲一
Nomura, Tetsuichi
e-Rad_Researcher
40122915
著者名
吉水, 守
Yoshimizu, Mamoru
e-Rad_Researcher
60001583
著者名
木村, 喬久
Kimura, Takahisa
言語
日本語
発行日
1991-09
出版者
日本魚病学会
Japanese Society of Fish Pathology
収録物名
魚病研究
Fish pathology
巻(号)
26(3)
ページ
139-147
抄録
Prevalence of Aeromonas salmonicida was studied in mature chum (Oncorhynchus keta), pink (O. gorbuscha), and masu salmon (O. musou) without signs of furunculosis. From September 1979 to November 1990, a total of 15,264 chum, pink and masu salmon were collected from 33 rivers. We isolated A. salmonicida from chum salmon in 18 of 28 rivers and the prevalence ranged from 1.8 to 34.4%. For pink salmon populations, A. salmonicida was isolated in 9 of 14 rivers with prevalence ranging from 1.7 to 14.6%. In masu salmon, A . salmonicida was isolated in 6 of 10 rivers and the prevalence ranged from 0.5 to 3.7%. The above results indicated that A. salmonicida distributed widely in the populations of mature salmonids, except those in the rivers on the coast from Tsugaru Strait to Uchiura Bay. The annual change in prevalence of A. salmonicida in salmon was closely related to the fish density in the holding ponds for maturation. The viable numbers of A. salmonicida in the kidney were found to be from 10^3 to 10^5 cfu/g.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0388-788X
NCID
AN00063165