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Method for efficient polyculture of environmental-friendly fresh water fishes, shrimps and crabs

An environment-friendly, freshwater fish technology, applied in botany equipment and methods, fish farming, climate change adaptation, etc., can solve problems such as destruction of biodiversity in aquaculture waters, pollution of aquaculture waters, environmental pollution of aquaculture waters, etc.

Inactive Publication Date: 2012-11-14
河北省海洋与水产科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The pollution of the aquaculture water environment by aquaculture is a major hidden danger in aquaculture at present. Due to the excessive pursuit of economic benefits, the traditional aquaculture model will pollute the aquaculture water area to varying degrees, especially the unreasonable aquaculture model not only pollutes the water environment but also destroys Biodiversity in waters

Method used

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  • Method for efficient polyculture of environmental-friendly fresh water fishes, shrimps and crabs

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Effect test

Embodiment 1

[0019] This embodiment includes the following steps:

[0020] (1) Use the area within 5 meters along the shore of the breeding waters as the aquatic plant cultivation area, and cultivate aquatic plants such as water chestnut, lotus, water lily, eye vegetable, water hyacinth, and lotus philodendron, so that the coverage rate of aquatic plants accounts for the More than 80% of the cultivation area;

[0021] (2) Take the 20% area of ​​the breeding water area after the aquatic plant cultivation area is removed as the breeding area, and put freshwater shrimp and river crabs in the breeding area. The specification is 30-50 / 500g, 180 per mu;

[0022] (3) The remaining area is the special fish, shrimp, and crab multiplication area. In this area, the fine aquatic plants that fish, shrimps, and crabs like to eat are cultivated, such as bitter grass, reed, calamus, bitter grass, dwarf algae, eye spinach, and hydrilla. The coverage area is greater than 60% of the area of ​​the breeding ...

Embodiment 2

[0024] This embodiment includes the following steps:

[0025] (1) Use the area within 5 meters along the shore of the breeding waters as the aquatic plant cultivation area, and cultivate aquatic plants such as water chestnut, lotus, water lily, eye vegetable, water hyacinth, and lotus philodendron, so that the coverage rate of aquatic plants accounts for the More than 80% of the cultivation area;

[0026] (2) Take the area of ​​30% of the breeding water area after the aquatic plant cultivation area is removed as the breeding area, and put freshwater shrimp and river crabs in the breeding area. The specification is 30-50 / 500g, 200 per mu;

[0027] (3) The remaining area is the special fish, shrimp, and crab multiplication area. In this area, the fine aquatic plants that fish, shrimps, and crabs like to eat are cultivated, such as bitter grass, reed, calamus, bitter grass, dwarf algae, eye spinach, and hydrilla. The coverage area is greater than 60% of the area of ​​the breedi...

Embodiment 3

[0029] This embodiment includes the following steps:

[0030] (1) Use the area within 5 meters along the shore of the breeding waters as the aquatic plant cultivation area, and cultivate aquatic plants such as water chestnut, lotus, water lily, eye vegetable, water hyacinth, and lotus philodendron, so that the coverage rate of aquatic plants accounts for the More than 80% of the cultivation area;

[0031] (2) Take the 25% area of ​​the breeding water area after removing the aquatic plant cultivation area as the breeding area, put green shrimp and river crab in the breeding area, the body length of the green shrimp is 0.8-1cm, put 3000 tails per mu, and the crab The specification is 30-50 / 500g, 150 per mu;

[0032] (3) The remaining area is the special fish, shrimp, and crab multiplication area. In this area, the fine aquatic plants that fish, shrimps, and crabs like to eat are cultivated, such as bitter grass, reed, calamus, bitter grass, dwarf algae, eye spinach, and hydrill...

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Abstract

The invention relates to a method for efficient polyculture of environmental-friendly fresh water fishes, shrimps and crabs. The method is characterized in that according to the existing water environment characteristics of an aquaculture water area, an organic ecological aquaculture mode based on a food chain is established, suitable aquatic plants, aquatic animals and bottom fauna are selected, and a self-circulation environmental-friendly ecological system without outside feeding is constructed. The method can achieve the high unification of economic, environmental and social benefits.

Description

technical field [0001] The invention relates to an environment-friendly high-efficiency polyculture method for freshwater fish, shrimp and crab. Background technique [0002] There are three main methods of farming freshwater fish, shrimp and crab: extensive farming, intensive farming, and semi-intensive farming. Extensive farming does not require bait feeding, and relies on natural bait in the water body to cultivate and breed fish. Some ponds and large water surface farming adopt this farming method, which has the characteristics of low cost and low requirements on the technical level and management level of the breeders. Disadvantages It is low yield and economic benefit. The intensive farming method relies entirely on artificial feeding, which has high yield, high economic benefits, and the highest utilization rate per unit of water body. This method is often used in industrial farming and cage farming. Semi-intensive farming mainly relies on the natural bait of the wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01G1/00A23K1/18A23K1/14
CPCY02A40/81
Inventor 肖国华赵振良付仲高晓田杨金晓张立坤
Owner 河北省海洋与水产科学研究院
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