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通过测试鱼类的游泳能力,可为过鱼设施设计和鱼类行为学研究提供基础资料。在水温18.9~24.3℃和5.58~8.17 mg/L溶氧条件下,采用丹麦Loligo System公司的鱼类游泳能力环形试验水槽,以大渡河下游6种典型鱼类胭脂鱼(Myxocyprinus asiaticus)、长薄鳅(Leptobotia elongata)、长鳍吻鮈(Rhinogobio ventralis)、异鳔鳅鮀(Xenophysogobio boulengeri)、唇?(Hemibarbus labeo)、四川白甲鱼(Onychostoma angustistomata)为研究对象,分别对测试其感应流速、临界游泳速度和爆发游泳速度。结果显示:(1)测试鱼的平均感应流速:白甲鱼9.9~12.3 cm/s,唇?8.5~11.1 cm/s,异鳔鳅鮀12.0~17.5 cm/s,胭脂鱼8.3~13.5 cm/s,长薄鳅14.7~18.1 cm/s,长鳍吻鮈14.0~18.6 cm/s;(2)平均临界游速:白甲鱼106.3~131.1 cm/s,唇?67.9~78.4cm/s,异鳔鳅鮀72.9~80.5 cm/s,胭脂鱼78.1~89.9 cm/s,长薄鳅89.6~109.9 cm/s,长鳍吻鮈83.1~103.8 cm/s;(3)平均爆发游速:白甲鱼149.4~159.1 cm/s,唇?98.9~128.5 cm/s,异鳔鳅鮀98.5~141.5 cm/s,胭脂鱼92.3~125.7 cm/s,长薄鳅125.4~151.8 cm/s,长鳍吻鮈128.6~163.8 cm/s。根据测试结果,建议过鱼孔口近底边区域流速为1.0~1.2 m/s,其余高流速区适当放大至1.4~1.5 m/s;鱼道进口流速值为0.7~1.5 m/s,出鱼口设置在流速持续不小于0.3 m/s的水域,过鱼设施平均流速范围为0.6~1.0 m/s。  相似文献
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Artificial - based fish multiplication and liberation is one of the most efficient ways for sustaining fish population, and is carrying out in the much more hydropower stations in China. In this paper, we took the Gongguoqiao & Miaowei hydropower station as an example, and aimed to briefly introduce the design process of fish hatchery. The key techniques including the multiplication and liberation size, the parent fish amounts, and the all kinds of breed facilities, were discussed, and the expected research direction was put forward.  相似文献
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