Reservoir ecological scheduling method for guaranteeing grass sticking fish egg incubation in reservoir area

Abstract

The invention discloses a reservoir ecological scheduling method for guaranteeing incubation of grass-sticking roes in a reservoir area. The method comprises the following steps: acquiring the species composition and reproduction characteristic information of grass-sticking roe producing fishes in the reservoir area; determining the fastest time period of reservoir water level fluctuation; determining the type composition of fishes producing grass-sticking eggs in the fastest time period of water level fluctuation of the reservoir; determining the main variety composition of the grass-sticking egg producing fishes influenced by the water level of the reservoir in the time period, and obtaining scheduling target fishes; the water temperature, the water depth and the weather of the target fishes during spawning breeding and early development in the fastest water level fluctuation period of the reservoir, and the time needed from fertilized eggs to membrane hatching and the time needed by the flat swimming stage are determined; determining ecological scheduling time, water temperature, weather and water level regulation and control parameters required by the target fish; determining an ecological scheduling scheme; and scheduling the water level of the reservoir according to the ecological scheduling scheme. According to the scheme, the adverse effect of continuous water level fluctuation of a reservoir on grass sticking fish egg incubation can be relieved.

Description

technical field [0001] The invention relates to the field of ecology, in particular to a reservoir ecological scheduling method for ensuring the hatching of weedy fish eggs in the reservoir area. Background technique [0002] Sticky herbaceous fish eggs need to adhere to aquatic plants for hatching. The operation of large-scale reservoirs, especially in spring and summer, caused the water level in the reservoir area to continue to drop, resulting in the death of fish eggs adhering to the substrate of aquatic plants in shallow water areas along the coast due to exposure to air and drying up. Therefore, it is urgent to implement ecological regulation to slow down the impact of the continuous drop of water level in the reservoir area on the hatching of these sticky fish eggs. At present, how to ensure the hatching of sticky fish eggs in the reservoir area through ecological scheduling still lacks corresponding mature technical methods. Contents of the invention [0003] In ...

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Problems solved by technology

At present, how to ensure the hatching of sticky fish eggs in the reservoir area through ecological scheduling still lacks corresponding mature technical methods

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