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Artificial screening system for host fish of freshwater mussels

A technique for hooking larvae and freshwater mussels, which is applied in the field of artificial screening systems for host fish of freshwater mussels, can solve the problems of low screening effect and efficiency of host fish, difficult to guarantee the quality of aquaculture water, and high mortality of parasitic fish, and achieves The effect of maintaining water quality stability and recycling, improving screening effect and efficiency, and increasing the survival rate of temporary cultivation

Active Publication Date: 2019-08-02
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing screening method mainly uses the siphon method to suck out the detached larvae and metamorphic juveniles from the bottom of the parasitic fish holding tank every day. It is difficult to guarantee that the mortality rate of parasitic fish is high, which leads to extremely low screening effect and efficiency of host fish

Method used

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  • Artificial screening system for host fish of freshwater mussels
  • Artificial screening system for host fish of freshwater mussels

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific examples.

[0021] The artificial screening system of the freshwater mussel larvae host fish is equipped with a host fish breeding box 1 on the support 7, and the upper end of the host fish breeding box 1 is covered with a cover plate 6, which can prevent parasitic fish from jumping out. A water inlet pipe 3 is fixed on the top, an overflow pipe 5 is installed above the middle part of the right side wall of the host fish breeding box 1, and an isolation plate 2 is fixed on the lower surface of the cover plate 6, and the isolation plate 2 is close to the overflow pipe 5, the first connection pipe 8 is connected to the overflow pipe 5, and the juvenile clam collection box 9 is provided under the host fish culture box 1, and the juvenile clam collection box 9 is covered with a Collect support plate 10, offer net bag installation hole on collection support plate 10, place collection net bag 1...

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Abstract

The invention relates to a fresh water mussel Glochidium host fish artificial screening system; host fish culture tanks are arranged on a support; the top of the host fish culture tank is covered by a cover plate; the cover plate is fixedly provided with a water inlet pipe; the right side wall of the host fish culture tank is provided with an overflow tube; the bottom surface of the cover plate is fixedly provided with an isolation plate close to the overflow tube; the overflow tube is connected with a first connecting tube; a young mussel collection box is arranged below the host fish culture tank, and covered by a collection support plate having mesh bag mount holes; collection mesh bags are arranged in the mesh bag mount holes; one side of the young mussel collection box is provided with a water storage tank; the water outlet of the third connecting tube is connected with a cycle water pump. The fresh water mussel Glochidium host fish artificial screening system can automatically collect young mussels when the host fish sheds, thus obviously increasing host fish temporary rearing survival rate, and improving fresh water mussel host fish screening effect and efficiency.

Description

technical field [0001] The invention relates to the technical field of artificial breeding systems of freshwater mussels, in particular to an artificial screening system for freshwater mussel larvae host fish. Background technique [0002] Freshwater mussels refer to molluscs, bivalves, and mussels. Most of them have a special life history: during the breeding season, male mussels discharge sperm into the water body, and female mussels transport sperm to the gills through water filtration In the cavity, the female clam discharges the mature eggs into the upper gill cavity for fertilization. The fertilized eggs develop into mature larvae on the gill filaments. The larvae need to parasitize on the gill filaments, fin rays or skin of suitable host fish. The brief parasitic metamorphosis develops into juvenile clams, thus completing natural reproduction. Freshwater mussels can be divided into two main types according to the difference in the selectivity of the larvae to the hos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54A01K63/00
CPCA01K63/003Y02A40/81
Inventor 顾若波闻海波徐跑马学艳金武邹军华丹
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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