Thamnaconus septentrionalis fry culture method

The technology of a kind of green finfish and its cultivation method is applied in the field of green finfish seed cultivation, which can solve the problems of low seedling efficiency, difficulty in opening bait, and death of juvenile fish sticking to the wall, so as to avoid The effect of sticking to the wall, good aquaculture water environment, and maintaining the aquaculture water environment

Active Publication Date: 2019-08-02
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for cultivating green-finned fish seedlings. The method fully utilizes the natural living habits and biological characteristics of green-finned fish-faced fish, and aims at the cultivation of green-finned horse-faced fish seedlings. There are problems such as difficult to solve open bait, high mid-term mortality rate, and low emergence rate, and overcome the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for cultivating green-finned horse-faced fish seed, comprising selection of broodstock and strengthening, natural spawning and collection, hatching, bait cultivation and strengthening, seed cultivation, commercial seedling, the specific steps are as follows:

[0038] 1. Broodstock selection and strengthening:

[0039] In May 2016, 216 wild broodstock were collected from the waters near Qingdao Hujiashan Wharf and Phoenix Island in Jinshatan, and 187 were artificially domesticated. The standard length of broodstock is 25.2 to 32.5 centimeters, and the weight is 244 to 574 grams. In the non-breeding season, there is no obvious difference between the male and female greenfin horsefaced puffer, and it is difficult to distinguish the male and female from the appearance. By comparing the anatomy of sexually mature broodstock, it can be identified simply and intuitively from the appearance and body shape. The parent fish with a larger body length and width ratio is a...

Embodiment 2

[0066] In this embodiment, except that the broodstock batches are different, other cultivation methods are basically the same as in Example 1.

[0067] In June 2017, 317 wild broodstock were collected from the waters near the wharf of Langya Port in Qingdao, and 285 were domesticated and survived artificially. The standard length of broodstock is 24.7-35.5 centimeters, and the weight is 215-580 grams. The broodstock were kept in separate ponds for temporary breeding. Because the temperature this year was higher than in the same period of previous years, intensive cultivation was carried out for about 7 days. In the first ten days of June, the broodstock began to spawn naturally one after another. From June 5th to June 20th, the fertilized eggs are collected for seed breeding, the water temperature is 21-24.2°C, and the spawning cycle is about half a month. After 35-45 days of seed cultivation, 339,000 lively and healthy commercial seedlings of 35-70 mm were cultivated, and th...

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PUM

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Abstract

The invention relates to a thamnaconus septentrionalis fry culture method, and belongs to the field of aquaculture. The method comprises the steps of parent fish selection and reinforcement, natural spawning and collection, hatching, bait culture and reinforcing, fry culture and commodity fry obtaining. According to the method, the natural life habits and the biological characteristics of thamnaconus septentrionalis are sufficiently used; the problems of wall attaching death of fish larvae, low fry culture efficiency and the like of small-bore variety fish fry palatable bait such as the thamnaconus septentrionalis are solved; meanwhile, high-quality fries can be provided for various culture modes; the time and the labor can be saved; the cost can be effectively reduced; the powerful support can be provided for the large-scale fry breeding, good fry selective breeding, idioplasm storage, artificial culture and proliferation, enhancement and releasing and the like of the thamnaconus septentrionalis.

Description

technical field [0001] The invention relates to the technical field of aquatic seed cultivation, in particular to a method for cultivating green-finned horse-faced fish seed. Background technique [0002] The green-finned horse-faced fish (Navodonseptentrionalis Günther) belongs to the order Fuguformes, the leatherfish family, and the genus Horse-faced fish. Jiangsu, Zhejiang and Fujian are called peeled fish and elephant skin fish; Shandong, Liaoning, Hebei and other places are called pig fish, cobbler fish, bread fish, and roasted fish. It belongs to warm-water bottom fish, has miscellaneous food habits, likes to gather in groups, and has weak swimming ability. [0003] In recent years, due to many unfavorable factors such as overfishing and water pollution, the ecological environment and germplasm resources of the green finfish have been greatly affected, resulting in a decline in its resources and an increase in market prices, resulting in this characteristic seafood. ...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 田吉腾张庆文席瑞潘明超张天时
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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