Study on the effect of artificial fish nest layout in Shaonvping Branch of Xiangjiaba Reservoir in Shuifu Section of Jinsha River
The construction of Xiangjiaba Hydropower Station has caused serious damage to the spawning ground and habitat of fish in the lower reaches of Jinsha River,and the fishery resources are decreasing day by day.In or-der to explore the effect of artificial fish nest construction on the protection of fishery resources,the layout and effect testing of artificial fish nests were carried out in Shaonvping Branch of Xiangjiaba Reservoir in the lower Shuifu Sec-tion of Jinsha River from February to April 2022.The artificial fish nest will be laid from February 14 to 28,2022,and the effect will be tested from March 4 to April 29,2022.The test results showed that the artificial fish nest area was 7,000 m2,spawning 5 batches,accumulating more than 170 million grains,and the hatching rate reached 38.9%.The amount of eggs laid in March was significantly higher than that in April.The results of this study pro-vide a scientific basis for the conservation of fish diversity and the formulation of important habitat restoration meas-ures after the construction of the power station.
Jinsha Riverartificial fish nestspawning groundwater qualityproliferation effect
万方数据
维普
