Artificial breeding method for semi-smooth tongue sole

Abstract

An artificial reproduction method for half-smooth tongue-sole features that the hydrological environment factors for culturing parent fish are controlled for naturalizing them, the growth environment conditions of parent fish are controlled for surviving the winter, and the illuminance and water temp are controlled for ensuring the normal development of the gonad of parent fish.

Description

technical field [0001] The invention relates to an artificial propagation method of Soleidae fish, in particular to an artificial propagation method of half-smooth tongue sole. It belongs to the field of aquaculture in marine engineering. Background technique [0002] Semi-smooth tongue sole (Cynoglossus semilaevis Gunther) belongs to the flatfish order, Cynoglossus semilaevis family. Because of its tender meat and delicious taste, it is loved by consumers and is a rare fish species with high economic value. Semi-smooth tongue sole inhabits the coastal waters of my country all year round. It has the characteristics of wide temperature, wide salt and low food level. It is considered to be one of the ideal fish species for breeding and multiplication. Its large-scale production has received great attention from all aspects of society. [0003] The reproductive habits of tongue sole have the following main characteristics: First, in different seasons, the sex ratio of natural...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for artificial propagation of tongue sole, which solves the domestication problem of broodstock by controlling the hydrological environment factors of broodstock cultivation; solves the overwintering problem of broodstock by controlling the growth environment conditions of broodstock; solves the problem of broodstock by controlling changes in light and water temperature gonadal development problems