Ecological scheduling system suitable for fishes laying viscid eggs to swim upstream

Abstract

The invention provides an ecological scheduling system suitable for fishes laying viscid eggs to swim upstream. The ecological scheduling system comprises a dam, wherein a reservoir-imitation bay wallis arranged along the bank of the upstream of the dam of the main stream and surrounds an exit of a branch to isolate the main stream from the branch, a fishway is arranged at the exit of the branchto communicate with the branch and the downstream of the dam, and one side face of the reservoir-imitation bay wall is provided with a ripple structure which is formed through transverse arrangement of multiple sections of arc faces in a longitudinal strip shape. According to the ecological scheduling system, under the assistance of the reservoir-imitation bay wall, slow-flow water in a reservoirarea is separated from running water regulated by the upstream branch, wherein one side of the reservoir-imitation bay wall is provided with a habitat condition which attracts the fishes liking slow flow to lay eggs and reproduce and a fish collecting and transferring system, through the coordinated scheduling of a barrage at the branch of the upstream and the dam of the main stream, the goal of increasing the survival rate and reproduction efficiency of the fishes passing through the main stream, particularly the fishes that lay viscid and demersal eggs and like running water or slow flow isrealized, and the purpose of improving the habitat suitability and protection efficiency of the fishes passing through the dam in water conservancy and hydropower projects is achieved.

Description

technical field [0001] The invention relates to an ecological dispatching system suitable for upward tracing of sticky egg-laying fish. Background technique [0002] my country's hydropower projects are developing rapidly, both in terms of installed capacity and core technologies are in the leading position in the world. As of the end of 2017, my country's hydropower installed capacity reached 341 million kilowatts, accounting for 26.9% of the world's total installed hydropower capacity, ranking first in the world for 15 consecutive years. At present, the world's largest hydropower station, the world's tallest arch dam, and the world's largest water turbine are all designed, constructed and manufactured by my country. [0003] The implementation of large-scale hydropower projects, on the one hand, has driven the rapid development of the social economy, on the other hand, the adverse ecological impacts of the projects on the natural habitats of fish have gradually emerged. ...

AI Technical Summary

Problems solved by technology

[0007] Fishes that lay viscous eggs are further divided into fishes that prefer slow-flowing water and fish that lay viscous eggs. The above-mentioned systems and methods are mainly improved from the perspective of water temperature and flow conditions. The spawning conditions of the spawning grounds of fishes that lay viscous eggs do not take into account the fact that the fishes that love flowing water and lay sticky eggs do not adapt to the slow-flow habitat in the reservoir area after going up the dam, and the fish go up to the spawning grounds on the river beach The efficiency is low, which restricts the development of research on the protection of fishes that lay sticky eggs

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