Silver carp and bighead carp separated propagation type reservoir water purification and fishery breeding method and breeding system

A breeding method and water purification technology, applied in the field of fishery multiplication, can solve the problems of reducing algae density, slow exchange speed, narrow opening, etc., and achieve the effects of reducing fishing damage, preventing mesh clogging, and increasing growth speed

Pending Publication Date: 2020-07-10
GUANGXI ACADEMY OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water exchange speed of the reservoir branch is slow and the opening is relatively narrow. It is not only a channel connecting the large water surface of the reservoir area and the shore, but also a place where non-point source pollution

Method used

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  • Silver carp and bighead carp separated propagation type reservoir water purification and fishery breeding method and breeding system
  • Silver carp and bighead carp separated propagation type reservoir water purification and fishery breeding method and breeding system
  • Silver carp and bighead carp separated propagation type reservoir water purification and fishery breeding method and breeding system

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Implemented in Hongchaojiang Reservoir, Hepu County, Beihai City. The total area of ​​the reservoir is 100,000 mu, and the area of ​​30,000 mu is intercepted by seine nets to implement water purification fishery; including 9 reservoir branches, with a total area of ​​about 10,000 mu and an open water area of ​​20,000 mu Mu; because the water level change area also can change, and area is all approximate number, as shown in table 1; Carry out silver carp and bighead carp separation multiplication type reservoir water purification fishery cultivation method according to the following method:

[0050] (1) A double-layer block is set at the opening of the reservoir branch, wherein: the block near the main reservoir area downstream of the reservoir is the outer block 1, and the block near the branch area of ​​the upstream reservoir is the inner layer block 2; For the inner block and the outer block, the bottom of the net is equipped with a rope with a lead pendant to hang the...

Embodiment 2

[0060] Implemented in Lingdong Reservoir, Lingshan County, Qinzhou City, the total area of ​​the reservoir is 10,000 mu. Intercept 1 upstream reservoir branch, the reservoir branch area is about 2000 mu, of which the double-layer block area is about 900 mu; the average water depth of the outer block is about 8 meters, and the water depth of the inner block is about 6.5 meters; the outer block is 720 meters, the inner Layer block 200 meters. Carry out silver carp and bighead carp separation multiplication type reservoir water purification fishery culture method according to following method:

[0061] (1) A double-layer block is set at the opening of the reservoir branch, wherein: the block near the main reservoir area downstream of the reservoir is the outer block 1, and the block near the branch area of ​​the upstream reservoir is the inner layer block 2; For the inner block and the outer block, the bottom of the net is equipped with a rope with a lead pendant to hang the net...

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Abstract

The invention discloses a silver carp and bighead carp separated propagation type reservoir water purification and fishery breeding method and a breeding system. The breeding method comprises the following step: setting double-layer baffle nets at branch mouths of reservoir branch openings, wherein the baffle net close to the main reservoir area at downstream of a reservoir is an outer-layer baffle net; the baffle net of a branch area close to an upstream reservoir branch is an inner-layer baffle net; an area formed from the inner-layer baffle net to the branch area is a silver carp propagation area; an area formed between the double-layer baffle nets is a middle bighead larva culture and xenocypris propagation area; and an area formed from the outer-layer baffle net to the main reservoiris a bighead carp propagation area. The breeding method and the breeding system are mainly applied to propagation breeding and water quality improvement in a reservoir region, and the baffle nets arearranged at reservoir branch openings, so that partial high densities of fishes can be achieved, and an effect of rapidly purifying water can be achieved.

Description

technical field [0001] The invention relates to a water purification fishery culture method and a culture system of silver carp and bighead carp separated and multiplied, in particular to a water purified fish culture method and system of silver carp and bighead carp separated and multiplied type, which are mainly used for breeding in reservoir areas and improving water quality. It belongs to the technical field of fishery multiplication. Background technique [0002] Water purification fishery is a new ecological enhancement breeding model, which is characterized by the purpose of improving water quality, reducing the density of algae and improving the transparency of water by feeding silver carp, bighead carp and other filter-feeding fish; At the same time, it can also take away part of N and P from the system, so it can also reduce the N and P levels of the water body. [0003] Water quality is mainly determined by the level of nutrients (mainly N, P), but in terms of ch...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01M1/04
CPCA01K61/10A01M1/04Y02A40/81
Inventor 何安尤王大鹏施军雷建军吴伟军
Owner GUANGXI ACADEMY OF FISHERY SCI
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