All-seawater larval rearing and indoor industrialized culture method for trachidermus fasciatus heckel

Abstract

The invention belongs to the technical field of fish breeding and culture. In order to overcome the technical defects in an existing larval rearing and culture method for trachidermus fasciatus heckel, the invention provides an all-seawater larval rearing and indoor industrialized culture method for trachidermus fasciatus heckel. The method comprises the following steps of (1) catching parent fishes; (2) rearing and acclimating the parent fishes; (3) performing spawning and fertilization; (4) performing incubation; (5) performing larval rearing; and (6) performing indoor industrialized culture of adult fishes. With the adoption of the technical scheme provided by the invention, the problem of reduced yield due to blocked migration route of trachidermus fasciatus heckel at present can be effectively solved; and through indoor industrialized artificial culture, the controllability of culture conditions is improved, the culture yield of the trachidermus fasciatus heckel is greatly increased, and the mariculture industry is promoted to develop in high yield, high quality and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of fish breeding and cultivation, and specifically refers to a method for breeding Songjiang perch whole seawater fry and indoor factory culture. Background technique [0002] Songjiang perch is a migratory fish in the near-shore shallow sea. Every spring, the juveniles swim to inland rivers to grow and fatten. In autumn, after sexual maturity, they swim to the junction of seawater and freshwater to lay eggs and reproduce. In recent years, due to the continuous construction of gates and dams, the migration route of Songjiang perch has been destroyed, and the increasing water pollution has affected the living environment of Songjiang perch, and the production of Songjiang perch has become less and less. ZL201110249580.4 discloses a whole seawater breeding method for Songjiang perch. The breeding method includes the following steps: fishing of broodstock - preparation of breeding pond - domestication and culti...

AI Technical Summary

Problems solved by technology

Although this method has achieved good technical results, it is found in actual operation that there are still certain technical defects in its operation steps, which can easily lead to the failure of broodstock domestication, the small number of eggs laid, the decline in fertilization rate, and the success rate of seedling breeding. Low, poor controllability of outdoor pond culture, low culture survival rate and other technical problems, so it is necessary to make further improvements to the existing Songjiang perch seed breeding and culture methods