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  3. 増養殖研究所

飼育水温の違いによるサクラマス0年魚のスモルト化

https://fra.repo.nii.ac.jp/records/2007554
https://fra.repo.nii.ac.jp/records/2007554
91e9a8e7-e5c1-4343-ae61-aa479ba24863
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2024-06-18
タイトル
タイトル 飼育水温の違いによるサクラマス0年魚のスモルト化
言語 ja
タイトル
タイトル Smoltification of underyearling masu salmon (Oncorhynchus masou) at different temperatures.
言語 en
言語
言語 jpn
キーワード
言語 en
主題Scheme Other
主題 underyearling smolt; masu salmon; temperature; growth
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ departmental bulletin paper
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 佐藤, 良三

× 佐藤, 良三

ja 佐藤, 良三

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渋谷, 隆之

× 渋谷, 隆之

ja 渋谷, 隆之

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阿久津, 梅二

× 阿久津, 梅二

ja 阿久津, 梅二

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抄録
内容記述タイプ Abstract
内容記述 Effect of temperature and growth on smoltification of underyearling masu salmon (Oncorhynchus masou) was studied using six different temperature regimes. Fertilized eggs were placed at three different temperatures, 9℃, 12°C, or 15℃ in late September, and after hatching fry were reared until late March, and then each treatment group was divided into two blocks. The first blocks were transferred respectively in three ponds at Nikko Branch whose temperature was about 9°C during the experiment. The second blocks were transferred to three ponds at Tochigi Pref. Fish. Exp. St. whose temperature ranged from 13.4℃ to 16.7°C (The average was about 15℃). The percentage of smolt produced in these treatment groups observed by early July were as follows: 9-9℃, 0%; 12-9℃, 57%; 15-9℃, 79%; 9-15℃, 0%; 12-15℃, 0%; 15-15℃, 12%. Thus, efficiency of smolt production was considerably improved by controlling the rearing temperatures during the early developmental stage. Average body length of smolt was larger than that of parr in each group. Average body length of smolt in 15-15℃ was largest, followed by that of 15-9℃ and of 12-9℃ in decreasing order. These results indicate that not only stimulated growth by rearing in high temperature in the early stage, but also other factor such as a cold water treatment may be necessary for efficient smolt production.
言語 en
bibliographic_information ja : 養殖研究所研究報告
en : Bulletin of National Research Institute of Aquaculture

巻 9, p. 21-27, ページ数 7, 発行日 1986-03
出版者
出版者 養殖研究所
言語 ja
item_10002_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0389-5858
item_10002_source_id_11
収録物識別子タイプ NCID
収録物識別子 AN00245945
情報源
識別子タイプ Local
関連識別子 nria_k_9_21
関連サイト
識別子タイプ URI
関連識別子 https://agriknowledge.affrc.go.jp/RN/2010350553
言語 ja
関連名称 日本農学文献記事索引(agriknowledge)
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