| 阿海电站4种土著鱼标志放流效果初报 |
| Assessment of Aboriginal Fish Release at Ahai Hydropower Station by the Mark-Recapture Method |
| 投稿时间：2017-03-13 修订日期：2018-09-13 |
| DOI：10.15928/j.1674-3075.2018.05.008 |
| 中文关键词:阿海电站 土著鱼类 标志放流 效果评价 |
| 英文关键词:Ahai Hydropower Station native fish species mark and release effect evaluation |
| 基金项目:金沙江中游阿海水电站鱼类增殖站2011年度放流效果评价合同（AH2011/S20）；国家水产种质资源共享服务平台（2018DKA30470）；云南省技术创新人才培养专项（2013HB125）。 |
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| 中文摘要: |
| 为探究金沙江阿海段水工建筑对水生生物的影响，通过补充土著鱼野外群体资源量，开展土著鱼人工增殖放流及其放流效果评估。采用T型标对阿海电站2011年度增殖放流的鲈鲤（Percocypris pingi pingi）、四川裂腹鱼（Schizothorax kozlovi）、细鳞裂腹鱼（Schizothorax chongi）和齐口裂腹鱼（Schizothorax prenanti）进行进行标志放流，通过集中捕捞与渔民反馈的方式进行了重捕调查，集中捕捞每隔2月进行1次，捕捞水域为石鼓-阿海-鲁地拉江段。结果表明，标志个体在阿海电站库区、金安桥电站库区、龙开口电站库区均有捕获，其中渔获量为：阿海库区﹥金安桥库区﹥龙开口库区；在正常捕捞强度下，鲈鲤、四川裂腹鱼、细鳞裂腹鱼、齐口裂腹鱼的回捕率分别为0.19%、0.42%、0.37%、0.72%；捕获标志个体在自然水域正常生长。建议在后期的增殖放流活动中，在坝上和坝下选择多点放流，扩大人工增殖群体的分布水域，对增殖对象的资源量变动和遗传渗透开展进一步的研究。 |
| 英文摘要: |
| To mitigate the impact of hydraulic structures on aquatic life in the Ahai section of Jinsha River, four species of artificially bred native fish (Percocypris pingi pingi, Schizothorax kozlovi, Schizothorax chongi, and Schizothorax prenanti) were released. The effect of artificial propagation and release of indigenous fish was evaluated using the mark-recapture method. A total of 17,000 fish were released on September 28, 2011 at the Ahai Hydropower Station reservoir dock. Ten percent of the fish had a T-shaped mark and recapture was carried out in the Shigu and Ludila sections of the middle Jinsha River. Collection was carried out in December of 2011 and March, June and September of 2012, each over a period of 15 days and river length of 402 km and the data collected included feedback from fishermen. A total of 79 marked fish were caught in the reservoir areas of Ahai Hydropower Station, Jinganqiao Hydropower Station and Longkaikou Hydropower Station and the number of marked fish recaptured was in the order, Ahai Hydropower Station﹥Jinganqiao Hydropower Station﹥Longkaikou Hydropower Station. By species, the number of recaptured Percocypris pingi pingi, Schizothorax kozlovi, Schizothorax chongi, Schizothorax prenanti were, respectively, 4, 21, 18 and 36, giving recapture rates of 0.19%, 0.42%, 0.37% and 0.72%. Recaptured individuals had continued growing in natural waters after release. We recommend (1) expanding the area receiving artificially propagated fish by establishing additional release sites upstream and downstream of the dam and (2) continuing research on the fishery resource and penetration of genes from artificially bred fish into wild populations. |
| 梁祥,史 笃,冷云,倪静洁,李光华,罗永新,宋建宇,贺伟平,张建斌,缪祥军,左鹏翔,钟文武,王志飞,崔丽莉.2018.阿海电站4种土著鱼标志放流效果初报[J].水生态学杂志,39(5):55-59. |
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