Breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass

A culture method and technology for fish, shrimp and clams, which are applied in the directions of chemical instruments and methods, botanical equipment and methods, and applications, can solve problems such as the decline of fishery resources, the single fishery structure, and the deterioration of water quality, and are beneficial to the water environment. Protection, high utilization rate of feed, effect of improving bottom environment

Inactive Publication Date: 2016-08-31
JIANGXI INST OF AQUATIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when aquaculture is carried out in inland lakes and reservoirs, a large amount of fertilization, baiting, and medication have caused problems such as fragmentation of the ecosystem of lakes and reservoirs, overstocking, single fishery structure, deterioration of water quality, serious decline in fishery resources, and deterioration of water quality.

Method used

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  • Breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass
  • Breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass

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Embodiment 1

[0023] A breeding method for purifying the water quality of lakes and reservoirs by using fish, shrimp and clamgrass:

[0024] (1) Lake and reservoir water purification ecological breeding area preparation: the water level of the small reservoir is 1.0-2.0 meters, and the water area of ​​the reservoir is 60 mu. In the dry season, polyethylene mesh or bamboo pieces are used to form the first fence 3 at a place 50 meters away from the water outlet. 100 meters away from the water outlet, use polyethylene mesh or bamboo chips to form the second fence 4, enclose 6 mu of water surface as the lake water purification ecological breeding area 5, and clean the bottom of the reservoir to keep it flat, and the power grid removes wild debris Fish; the other waters of small reservoirs are ordinary breeding areas of lakes and reservoirs, economic aquatic products that are normally cultured;

[0025] (2) Stocking of fingerlings and parents: When the water temperature is below 10°C, put silver...

Embodiment 2

[0035] (1) Preparation of ecological breeding area for lake water purification: In 2013, the water level of Qinglan Lake was 1.0-2.0 meters, with an area of ​​17,000 mu. In the dry season, polyethylene mesh and bamboo chips were used to form the first Mesh fence 3, 200 meters away from the water outlet, form the second mesh fence 4 with polyethylene mesh, bamboo chips, etc., enclose 100 mu of water surface as the lake and reservoir water quality purification ecological breeding area 5, clean the bottom of the reservoir, keep it flat, and use the power grid Remove wild fish; the other waters of Qinglan Lake are ordinary breeding areas in lakes and reservoirs, and are economic aquatic products that are normally cultured;

[0036] (2) Stocking of fingerlings and parents: When the water temperature is below 10°C, put silver carp fingerlings, bighead carp fingerlings, yellow catfish, green shrimp and river clam parents, stocking specifications are 2-3 fish / kg, 3 -5 fish / kg, 5-10 fi...

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Abstract

The invention discloses a breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass. According to the method, a lake and reservoir water quality purification ecological breeding region is established, and a three-dimensional breeding mode is formed by fully utilizing the fishes, shrimps, clams and grass at the upper layer, the middle layer, the lower layer and the bottom layer of the breeding region. The lake and reservoir water quality purification ecological breeding region is arranged at a lake and reservoir outlet, eutrophic lake water, obtained after aquaculture, of other regions of the lake and reservoir can flow to the lake and reservoir water quality purification ecological breeding region conveniently, and the lake and reservoir water quality purification ecological breeding region serves as the main feed source and plays the role of purifying the water quality. According to the method, only one feed is used, the use ratio of the feed is high, discharge of nitrogen, phosphorus and the like is low, and water environment protection is promoted. In addition, excreta of the fishes, shrimps and clams who take food is used for growth of hydrilla verticillata which provides natural fish nests for parents of yellow catfishes, freshwater shrimps and corbicula fluminea, and the natural fish nests are used for adhesion and incubation of zygotes of the fishes, shrimps and clams; meanwhile, hydrilla verticillata plays the role of improving the bottom environment of the breeding region, cyclic utilization of the fishes, shrimps, clams and grass in the lake and reservoir water quality purification ecological breeding region is formed, fishery development is achieved, and water environment protection is considered simultaneously.

Description

technical field [0001] The invention belongs to the technical field of aquaculture methods, and in particular relates to a cultivation method for purifying the water quality of lakes and reservoirs by using fish, shrimp and clam grass. Background technique [0002] Fishery development is the best way to solve the problem of high-quality protein supply in the world. In recent years, the aquaculture industry has developed rapidly, and the farming model has also changed from single-species farming to high-density large-scale development. However, when aquaculture is carried out in inland lakes and reservoirs, a large amount of fertilization, baiting, and medication have caused problems such as fragmentation of the ecosystem of lakes and reservoirs, overstocking, single fishery structure, deterioration of water quality, serious decline in fishery resources, and deterioration of water quality. Therefore, research on aquaculture in inland lakes and reservoirs has gradually develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01G33/00C02F3/32
CPCA01G33/00A01K61/00C02F3/322C02F3/327Y02A40/80Y02A40/81
Inventor 邓勇辉付辉云丁立云陶志英李彩刚张桂芳王伟萍
Owner JIANGXI INST OF AQUATIC SCI
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