Method for designing sinking and floating type shellfish bed based on mussel population growth model

Abstract

The invention discloses a method for designing a sinking and floating type shellfish bed based on a mussel population growth model, and relates to the field of fishery resource restoration. The method comprises the following steps: S1, collecting mussel sperm and egg discharge data in a sea area to be put into a shellfish bed, and recording the tenth day after the mussel sperm and egg discharge as D0; S2, preparing a plurality of groups of shellfish bed culture frames; S3, regularly measuring the wet weight of each group of mussel culture frames; S4, respectively constructing a Logistic growth model of the total mass md and the time t of a mussel population in each group of mussel culture frames; S5, obtaining a daily average assimilation rate Rexp; S6, screening out a combination with the maximum daily average assimilation rate Rexp; S7, welding borders of the mussel culture frames with hollow HDPE pipes; and S8, connecting the shellfish bed culture frames with artificial fish reefs in a mooring rope single-point mooring mode, and putting the mussels into use 10 days after the mussels are arranged in spring and autumn every year. Abundant plankton resources of the euphotic layer are fully utilized, the problem of separation of the artificial fish reefs and surface layer shellfish-algae beds is solved, and the ecological restoration capacity of artificial fish reef type marine ranching is improved.

Description

technical field [0001] The invention relates to the field of restoration of fishery resources, in particular to a method for designing a sinking-floating shellfish bed based on a mussel population growth model. Background technique [0002] As an important means of fishery resource proliferation and ecological restoration, the construction of marine pastures has received more and more attention. Artificial reefs are an important part of marine ranching, and they achieve ecological restoration functions by providing shelter for fish and other marine animals. In the shallow sea ecosystem where the marine ranch is located, the surface water body is rich in sufficient phytoplankton and plants, which can provide extremely sufficient producers for the shallow sea ecosystem. However, limited by factors such as material and light, artificial reefs mainly use Concentrated at the bottom of the water, it is impossible to make full use of the nutrients and primary productivity of the w...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned background technology in the prior art artificial fish reef type marine pastures cannot make full use of the rich plankton resources in the euphotic layer, mussels and other bivalve molluscs cannot form effective ecological units such as shell beds, and organisms with different trophic levels on the surface and bottom of the water body To solve problems such as low dialogue efficiency and improve the ecological restoration ability of artificial reef-type marine pastures, the present invention provides a method for designing sinking-floating shellfish beds based on the growth model of mussel populations

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