Fish gathering and transporting system suitable for dam and fish gathering and transporting method thereof

Abstract

The invention provides a fish gathering and transporting system suitable for a dam and a fish gathering and transporting method thereof. The method comprises the steps that downstream fishes flow upwards in an adverse current mode to penetrate through an anti-escape cage to enter a vertical shaft; a fish gathering box sinking in water in the vertical shaft is lifted away from the water surface, the fishes in the fish gathering box slide into a water storage hopper at the bottom of a fish gathering tank, and then the water storage hopper at the bottom of the fish gathering box is connected with a sliding groove in the dam; a gate valve is opened, the fishes in the water storage hopper flow into the sliding groove along with water, the fishes flowing out of the sliding groove are conveyed into a temporary rearing pond through a grading grid, small fishes fall into a first temporary rearing area from gaps between grid strips, and large fishes slide into a second temporary rearing area on the grading grid; and the fishes in all the temporary rearing areas are transferred to an upstream water area. According to the fish gathering and transporting system suitable for the dam and the fish gathering and transporting method thereof, the fishes can be helped to move upwards to pass through the dam, the blocking effect of the dam on upward movement of the fishes is relieved, and the sustainable purpose of protecting the original ecology of the fishes is achieved.

Description

technical field [0001] The invention relates to a system for collecting and transporting fish suitable for dams and a method for collecting and transporting fish, and belongs to the technical field of water conservancy and hydropower projects for fish to pass upwards over dams. Background technique [0002] The construction of water conservancy and hydropower projects inevitably destroys the connectivity of rivers, blocks the migration channels and gene exchange of fish, and causes the destruction of fish living environment and ecological diversity. Therefore, the design and construction of fish passage facilities for the purpose of fish resource protection, such as fishways, fish collection and transportation systems, fish gates, or fish passage facilities in different combinations, has received extensive attention. [0003] According to the direction of fish migration, the fish passing facilities are divided into fish ascending fish passing facilities and fish descending f...

AI Technical Summary

Problems solved by technology

The current fish collection and transportation system has low functional integration, and the connection of various processes is relatively scattered, and the effect is not ideal

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