Seedling method of big salangid in northern saline-alkaline areas

A technology for large whitebait and regions, applied in fish farming, application, climate change adaptation, etc., can solve problems such as low hatching rate, failure of large whitebait transplantation, and increased seed deformity rate, so as to improve adaptability and improve Economic benefits of fishery and the effect of improving the success rate

Inactive Publication Date: 2012-08-22
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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AI Technical Summary

Problems solved by technology

The transplantation of big whitebait generally adopts artificially inseminated fertilized eggs, and the salinity of natural water bodies in the north is generally high, such as Qinghai Lake in Qinghai Province, a typical water body, whose salinity is as high as 13.49g/L, and the

Method used

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Embodiment Construction

[0017] A kind of nursery method of big whitebait in northern saline-alkali area, comprises the following steps:

[0018] (1) Solution preparation:

[0019] After determining the water area where the big whitebait is transplanted, detect the physical and chemical indicators of the water quality such as salinity and pH value in the water area, and configure the salinity as 1 / 5, 1 / 4, 1 / 3, 1 / 2 of the transplanted water area according to the test results. 3 / 4 and 1 / 1 solutions, while ensuring that the pH of the configuration solution is the same as the pH of the transplanted water;

[0020] (2) Broodstock selection:

[0021] For brood fish, choose healthy, large-sized, sexually mature big whitebait with no food in the gut, and the ratio of male to female is 1:2;

[0022] (3) Artificial insemination:

[0023] Inject the solution with a salinity of 1 / 5 of the transplanted water body into the insemination container, and perform artificial insemination of the big whitebait by using ...

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Abstract

The invention discloses a seedling method of big salangid in northern saline-alkaline areas. The method comprises the steps of solution preparation, parent fish selection, artificial insemination, artificial incubation, incubation management and the like. Water body salinity and alkalinity in the step of artificial incubation can be gradually improved by the method naturalizing step by step from fertilized eggs of the big salangid, ecological plasticity of the fertilized eggs of the big salangid is utilized to improve the adaptability of fish larvae after seedling emergence to the saline-alkaline water body quality and thus improve the transplanting success rate of big salangid in northern high saline-alkaline water body. The big salangid offspring seed cultivated by the method provided by the invention is applied to the transplanting of big salangid in northern low-temperature environment and high saline-alkaline water body. The method is simple to operate and can improve the transplanting success rate of the big salangid in water bodies such as lakes and reservoirs of saline-alkaline areas and well improve the fishery economic benefit of the saline-alkaline water body.

Description

technical field [0001] The invention relates to the technical field of fish artificial breeding, in particular to a seedling raising method for large whitebait in northern saline-alkaline areas. Background technique [0002] big whitebait (Protosalanx hyalocranius Abbott ) is a large annual high-quality fish in the family Silverfish. It has delicious meat, no spines, high protein content, and high fishery value. At the same time, because of its fast growth rate and strong fecundity, it is the best choice for transplanting and multiplying lakes and reservoirs. Excellent variety. The transplantation of big whitebait generally adopts artificially inseminated fertilized eggs, and the salinity of natural water bodies in the north is generally high, such as Qinghai Lake in Qinghai Province, a typical water body, whose salinity is as high as 13.49g / L, and the alkalinity content As high as 24.95me / L, transplanting the fertilized eggs of big whitebait to such water body, its hatchi...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 尤洋周彦锋胡庚东
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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