| タイトル |
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ja
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
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en
Prevalence of Aeromonas salmonicida in the chum salmon (Oncorhynchus keta), pink salmon (O. gorbuscha), and masu salmon (O. masou) returning to rivers in Hokkaido
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| 作成者 |
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ja
野村, 哲一
en
Nomura, Tetsuichi
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| アクセス権 |
open access |
| 主題 |
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| 内容注記 |
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Abstract
en
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.
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| 出版者 |
ja
日本魚病学会
en
Japanese Society of Fish Pathology
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
VoR |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/38334
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| 収録誌情報 |
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PISSN
0388-788X
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NCID
AN00063165
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ja
魚病研究
en
Fish pathology
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巻26
号3
開始ページ139
終了ページ147
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
