Method for cultivating synechogobius hast fry

Abstract

The invention discloses a method for cultivating synechogobius hast (Temminck and Schlegel) fry, which belongs to agricultural mariculture technology. The method relates to the following: 1, a step of artificially breeding, which is to enclose 30 M2 of breeding pool as a dark room, put disinfected tiles at the bottom of the pool, observe the gonad maturation of fishes, put parent fishes in a male-female ratio of 1:2 into the pool in an IV stage at a water temperature of 10 DEG C, promote gonad maturation through illumination, cultivation water temperature and nutrition-enhancing measures and ensure that the fishes lay eggs at 13 DEG C and fertilized eggs are sticky; and 2, a step of cultivating larvae and juvenile fishes, which is to move attached fertilized eggs into the breeding pool at a water temperature between 14 and 17 DEG C at the salinity between 2.7 and 2.8 percent with 6.5-8 mg / l of dissolved oxygen, lower aquaculture density with fish growth, feed by adopting a method of combining various types of bait and userotifer, artemia nauplius and compound feed for the larvae and the juvenile fishes different in day age. Fry can reach 30 to 50 mm after 50 days and be used for aquaculture or propagation and release, and is a novel species for mariculture in Zhejiang.

Description

field of invention [0001] The invention relates to a seed breeding method of Synechogobius hast (Temminck and Schlegel), which belongs to the technical field of agricultural marine culture. Background technique [0002] The coast of Zhejiang is located in the middle of my country's coastline. Due to the influence of runoff from the Yangtze River and Qiantang River, and the sediment in the coast of Zhejiang is mainly silt, the sea water is turbid than that in the south and north. 1. The climate in the north is also different, which has formed the particularity of Zhejiang's mariculture industry. That is, when cold-water fish such as flounder and other species cultured in the north are cultured in Zhejiang, the problem of "summering" must be solved; some warm-water species cultured in the south Water-based fish must solve the problem of "overwintering". Therefore, although the cultured species in the south and north can be introduced, many of the above-mentioned technical proble...

AI Technical Summary

Problems solved by technology

[0005] Synechogobius hast (Temminck and Schlegel), commonly known as sea catfish and mudfish, belongs to the order Perciformes, the family Goby, and the genus Synechogobius. It is distributed in our province and coastal areas. The characteristics described in the requirements of the invention, and also have the advantages of strong fecundity and medium market price, have been trial-raised in a small number of farmers at present, but their larvae (frylings) are collected from natural seedlings, and it is difficult to form large-scale fishes. Scale farming requirements