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Challenges for Sustainable Use of the Fish Resources from Lake Balkhash, a Fragile Lake in an Arid Ecosystem
http://hdl.handle.net/10659/00006330
http://hdl.handle.net/10659/00006330b1be0191-c8ff-48a3-862b-de05b51b2b74
名前 / ファイル | ライセンス | アクション |
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R-2019-104_hoshino.pdf (11.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-02-26 | |||||
タイトル | ||||||
タイトル | Challenges for Sustainable Use of the Fish Resources from Lake Balkhash, a Fragile Lake in an Arid Ecosystem | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | arid river basins | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Lake Balkhash | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ili River delta | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | hydrological regimes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fisheries | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | overfishing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | poaching | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | arid river basins | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Lake Balkhash | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Ili River delta | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrological regimes | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | fisheries | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | overfishing | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | poaching | |||||
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 | journal article | |||||
著者 |
Pueppke, Steven G.
× Pueppke, Steven G.× Iklasov, Margulan K.× Beckmann, Volker× Nurtazin, Sabir T.× Thevs, Niels× Sharakhmetov, Sayat× 星野, 仏方 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Lake Balkhash is the largest water body in Central Asia. More than three-quarters of its inflow comes from the Ili River, which is under increasing strain due to the diversion of water for energy and food production. Commercial fishing in Lake Balkhash began in 1929 and is currently in a state of crisis. The construction of the Balkhash dam and reservoir in the late 1960s reduced Ili River flows into the lake and upset the natural cycle of spring floods, which greatly reduced spawning and feeding areas for carp (Cyprinus carpio). Carp populations were consequently reduced by more than 90% during the filling of the reservoir and have not recovered, even though the lake’s level subsequently rose. Catches of carp and freshwater bream (Abramis brama orientalis) have shown an inverse relationship since the 1960s, and the age structure of freshwater bream is changing. Historically, most captured fish of this species were 4- to 7-years-old, but smaller, 3- to 5-year-old fish have dominated recent catches. The total fish harvest from Lake Balkhash is currently at near historical lows, not just because of environmental factors, but also because of structural changes triggered by the collapse of the Soviet Union. Poaching, government disinterest, lack of enforcement of fishing regulations, and the economic challenges faced by today’s small fishing enterprises all contribute to the problem. | |||||
書誌情報 |
Sustainability 巻 10, 号 4, p. 1234-1-1234-15, 発行日 2018 |
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ISBN | ||||||
識別子タイプ | ISBN | |||||
関連識別子 | 2071-1050 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.3390/su10041234 | |||||
権利 | ||||||
権利情報 | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. | |||||
権利(URI) | ||||||
権利情報 | http://creativecommons.org/licenses/by/4.0/ | http://creativecommons.org/licenses/by/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | MDPI | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |