Artificial propagating and releasing method for fish fries

Abstract

The invention provides an artificial propagating and releasing method for fish fries. The method comprises the steps that 1, preparation before releasing is performed, wherein the fries, a releasing water wagon or water tank and a releasing fish delivery pipeline are selected; 2, the fries are loaded onto a car, wherein before the fries are loaded onto the car, the releasing water wagon or water tank, the fish delivery pipeline and other releasing tools are disinfected, the water addition quality, the oxygenation quality and the water temperature of the releasing water wagon or water tank are controlled, and the fry density is controlled when the fries are loaded onto the car; 3, the fries are released, wherein one end of the fish delivery pipeline is communicated with the releasing water wagon or water tank, and the other end of the fish delivery pipeline is placed into a target releasing sea area for releasing. The running water car is adopted for transportation in the whole releasing process, oxygen charging packaging treatment is not needed, and a ship does not need to be rent; the operation technology is simple, rapid and high in efficiency, damage to the fries is little, the survival rate is high, the labor intensity is low, and a large amount of manpower and financial and material resources are saved.

Description

technical field [0001] The invention belongs to the field of artificial proliferation and release of aquatic animals, and in particular relates to a method for artificial proliferation and release of fish fry. Background technique [0002] With the influence of human factors such as overfishing, increased water pollution, and increased construction of water projects, fishery resources are declining year by year. In order to protect biodiversity, improve the ecological environment of waters, and promote the sustainable development of fisheries, fishery enhancement and release activities have received more and more attention from relevant departments in recent years. [0003] The so-called multiplication and release is the activity of artificially releasing aquatic biological seedlings or broodstock to public waters such as oceans, rivers, and lakes to increase the amount of water resources and restore their natural populations. An effective measure to promote the ecological ...

AI Technical Summary

Problems solved by technology

[0005] The traditional method of fish multiplication and release is basically the same as that of shrimps, crabs, jellyfish and other multiplication and release methods. They all adopt the method of oxygenating and packaging in plastic bags. Take seedlings as an example, according to the packaging requirements of 100 fish per bag, releasing 1 million fish fry needs to be packed in 10,000 bags. Based on the average of 100 bags per skilled worker per hour, 10 skilled workers need to pack for 10 hours without interruption; On the other hand, after the fish fry are packaged, they must be loaded on a transport vehicle, and then transported by the transport vehicle to the release dock, and then the fry are transported onto the ship, and then released to the sea. It is not conducive to the survival of fish fry; at the same time, the labor intensity is high, and labor costs, material costs, bus fares, boat fees, etc. also bring a lot of economic burden to the released households

Images