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Method for outdoor fishing, transporting and temporarily rearing before artificial reproduction of salmons

A salmon, artificial breeding technology, applied in the field of transportation, temporary breeding, and wild salmon fishing, can solve the problems of high artificial breeding cost, insufficient number of broodstock for breeding, and high mortality of salmon, and the production quantity can be reached. improved effect

Inactive Publication Date: 2013-05-22
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the high mortality rate of salmon in the process of harvesting, transporting and temporary breeding of broodstock causes the artificial reproduction cost to be too high, and the number of broodstock for breeding is insufficient, thereby affecting the production quantity of juveniles of salmon problems, and provide methods for wild catch, transportation and temporary breeding of salmon before artificial breeding

Method used

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Comparison scheme
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specific Embodiment approach 1

[0013] Specific implementation mode one: the method of field harvesting, transportation and temporary raising before the artificial breeding of salmon in this implementation mode is specifically completed according to the following steps:

[0014] 1. Wild fishing: use a three-layer gillnet with a mesh size of 12.0cm~13.0cm to catch salmon, put the caught salmon into the living water tank of the fishing boat, and send them to the storage point for storage. Transport; the living water tank is a closed cabin in a fishing boat where the river water can freely exchange water. When storing, store the salmon to be transported in a net cage in a place with water flow by the river, and the water flow speed is 0.05m / s~0.1m / s, the water depth is 0.5m~1.0m, and the cage volume is 15 fish / m 3 17 tails / m 3 ;

[0015] 2. Transportation: Use a live fish truck to transport the salmon to be shipped. The water in the tank of the live fish truck uses river water, well water or spring water tha...

specific Embodiment approach 2

[0018] Specific implementation mode two: this implementation mode is different from specific implementation mode one in that: the gathering time is late October, and the gathering place is my country's Wusuli River, Heilongjiang or Tumen River. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that: in step one, the mesh is 12.7cm. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for outdoor fishing, transporting and temporarily rearing before artificial reproduction of the salmons, and aims to solve the problems that due to the fact that the salmons during current parent salmon fishing, transporting and temporarily rearing processes are high in death rate, cost of artificial reproduction is high, breeding parent salmons are insufficient in quantity and production quantity of larvae of the salmons is affected. The method includes: outdoor fishing, transporting and temporarily rearing. The survival rate during salmons storing in river reaches to 95%, the survival rate during transporting reaches to 100%, and the survival rate during temporarily rearing reaches to 98%, and the survival rate of the total processes reaches to more than 93%, so that production quantity of the larvae of the salmons is obviously increased. The method is used for outdoor fishing, transporting and temporarily rearing before artificial reproduction of the salmons.

Description

technical field [0001] The invention relates to a method for catching, transporting and temporarily raising salmon in the wild. Background technique [0002] Salmon is a typical anadromous fish, which is widely distributed in freshwater rivers in the North Pacific Ocean, the Sea of ​​Okhotsk, the Sea of ​​Japan and coastal countries. Salmon are born in freshwater rivers, and soon descend into the sea. After reaching sexual maturity, they migrate upstream to the place of birth to reproduce. The parent fish dies gradually and reproduces only once in a lifetime. The artificial breeding and release of salmon is carried out every year at home and abroad, and the artificial propagation technology is relatively mature, but the work methods of harvesting, transporting and temporarily raising wild salmon broodstock are different due to different environmental conditions in different places. In areas with good artificial harvesting environment, such as Suifenhe in Japan, the United S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王继隆刘伟唐富江
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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