四川叶巴滩水电站在金沙江上游建成了国内首个特高拱坝过鱼系统,为被大坝阻隔的鱼类开辟了洄游通路 1。该大坝坝高217米,上下游水位落差达173米 1。过鱼系统通过集鱼槽、集鱼斗、分拣室等多个环节,将鱼类沿斜坡轨道提升约155米至2895米高程,随后由无人驾驶小车运至码头进行放流 1。
为确保生态保护与清洁能源发电的平衡,该电站配套建设了鱼类增殖放流站,已成功人工繁育四川裂腹鱼、短须裂腹鱼、长丝裂腹鱼等本土鱼类品种 1。鱼苗从孵化到放流需要一年多时间,采用耳石热标记或荧光标记便于后续评估效果 1。截至目前,该站累计放流鱼苗约178万尾 1。甘孜州已投入涉渔工程生态补偿资金2240.4万元,年均投放土著鱼苗350万尾以上 1。叶巴滩水电站首批机组计划于2025年底投产发电,总装机容量为224万千瓦 1。
The Yebatan hydroelectric station on the upper Jinsha River has introduced a groundbreaking fish passage system to help native species navigate the massive barrier created by its construction. The facility features a 217-meter-high arch dam with a water level differential of 173 meters between upstream and downstream sections.1
The passage system operates through a multi-stage process: fish are collected in intake channels, sorted in designated chambers, then elevated approximately 155 meters via inclined track systems to an elevation of 2,895 meters.1 Autonomous vehicles subsequently transport the fish to release points at the riverbank.1 This marks China's first fish passage system designed for an ultra-high arch dam.1 The first generating units are scheduled to commence operations by the end of 2025, with a total installed capacity of 2.24 million kilowatts.1
Complementing the passage infrastructure, the Yebatan Fish Propagation and Release Station has established captive breeding programs for native species including Sichuan split-tail fish, short-barbeled split-tail fish, and long-barbeled split-tail fish.1 To date, approximately 1.78 million fingerlings have been released into the river.1 The breeding cycle extends over one year, with individual fish marked using otolith thermal markers or fluorescent tags to enable subsequent monitoring and effectiveness assessment.1 Provincial authorities in Ganzi have allocated 22.404 million yuan in ecological compensation funds for fishing-related projects, with annual native fingerling releases exceeding 3.5 million fish.1
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