Method for cultivating fish using net cage

A net cage fish farming and net cage technology, which is applied in the field of net cage culture, can solve the problems of water environment pollution and the inability to achieve sustainable development, and achieve the effects of protecting the environment, being easy to promote, and reducing emissions

Inactive Publication Date: 2009-08-12
长阳土家族自治县清江水产协会
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  • Abstract
  • Description
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Problems solved by technology

[0002] The use of net cage fish farming in inland rivers and reservoir waters is an important part of my country's fishery economy. Especially in the past 10 years, the reservoir has vigorously developed the channel catfish culture in cages and achieved good economic benefits for export. However, fish excrement and Residual bait also causes certain pollution to the water environment, which cannot achieve the purpose of sustainable development

Method used

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  • Method for cultivating fish using net cage

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Effect test

Embodiment 1

[0019] The net cage layout is carried out in the water area of ​​the reservoir area. The overall skeleton of the net cage layout is arranged in the shape of "hui", and the inside and outside of the skeleton are set in the shape of "non".

[0020] Large net cage 1 is set on the framework, and the specification of large net cage 1 is 8.5 meters * 9 meters * 6 meters, and mesh 2a=6 centimeters, puts in 380 fish fingerlings of bighead carp and silver carp in winter in the first year, stocking density 5 tails / square meters, the specification is 500 grams / tail, and the stocking ratio of bighead carp and silver carp is 4:1.

[0021] Four intensive cultivation net cages 2 are set in each large net cage 1, and the specification of the intensive cultivation net cage is 4 meters * 4 meters * 3 meters, mesh 2a=3 centimeters, and each intensive cultivation net cage is put in next spring There are 1,600 channel catfish species, the stocking density is 100 fish / square meter, and the size is...

Embodiment 2

[0024] The net cage layout is carried out in the water area of ​​the reservoir area. The overall skeleton of the net cage layout is arranged in the shape of "hui", and the inside and outside of the skeleton are set in the shape of "non".

[0025] Large net cage 1 is set on the framework, and the specification of large net cage 1 is 8.5 meters * 9 meters * 6 meters, and mesh 2a=8 centimeters, puts in 750 tails of bighead carp and silver carp fingerlings in winter in the first year, stocking density 10 tails / square meters, the specification is 750 grams / tail, and the stocking ratio of bighead carp and silver carp is 4:1.

[0026] Four intensive cultivation net cages 2 are set in each large net cage, and the specification of intensive cultivation net cage 2 is 4 meters * 4 meters * 3 meters, and mesh 2a=4 centimeters, and each intensive cultivation net cage is put in next spring There are 2,400 channel catfish species, the stocking density is 150 fish / square meter, and the size ...

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Abstract

The present invention provides a method for culturing fish with net cage. Firstly the whole framework of net cage layout is set according to the condition of inland river water and reservoir area water. A frame is installed on the framework. Then a large net cage is installed on the framework. Filter economic fish are cultivated in the large net cage. Finally intensive culture net cages are installed in the large net cage. Bait throwing type fishes are cultivated in the intensive culture net cages. The method for culturing fish with net cage according to the invention adopts the tridimensional inter-culturing mode of different water layers with the fishes with different food habits according to the ecological principle. The bait throwing type fishes are cultivated at the upper layer of the filter economic fish which can eat the excrement and residual bait of bait throwing type fishes. The effects of pollutant discharge amount reduction and environment protection at the state that the cultivation effect of prior fish is guaranteed. The method of the invention also has the advantages of easiness, easy learning, strong adaptability and easy generalization.

Description

technical field [0001] The invention relates to a net cage culture method, in particular to a fish culture method used in inland rivers and reservoir area waters, which can not only realize multi-species culture, but also protect the environment and purify water quality. Background technique [0002] The use of net cage fish farming in inland rivers and reservoir waters is an important part of my country's fishery economy. Especially in the past 10 years, the reservoir has vigorously developed the channel catfish culture in cages and achieved good economic benefits for export. However, fish excrement and Residual bait also causes certain pollution to water environment, cannot realize the purpose of sustainable development. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cage fish culture method that can protect the environment and purify water quality while ensuring the existing fish culture effect. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 习勇杨勤先张财兵向世雄毛中华
Owner 长阳土家族自治县清江水产协会
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