Aquaculture seedling multiplication releasing buffer device

Abstract

The invention discloses a buffer device for multiplying and releasing aquatic seedlings, which comprises a barrel body (1), and is characterized in that: the cross section of the barrel body (1) is circular, and the diameter of the bottom surface of the barrel body (1) is D, The diameter of the top of the barrel (1) is 1.2‑1.5D, and the top of the barrel (1) is open, and a water inlet (2) is provided at the top 1/3 of the barrel (1). ) is provided with a water outlet (3), the water outlet (3) is also connected with a seed inlet pipe (4), and a water pump is communicated with the water inlet (2) through a pipeline. This is a kind of safe operation, which can greatly reduce the stress response of seedlings to environmental changes, reduce the sudden death rate, and can improve the working efficiency of the aquatic seed breeding and releasing buffer device in the releasing process.

Description

technical field [0001] The invention relates to an auxiliary device for increasing aquatic products, cultivating and raising seedlings, in particular to a buffer device for multiplying and releasing aquatic seedlings. Background technique [0002] According to FAO statistics, from 1984 to 1997, a total of 80 countries attempted to increase and release 184 species. Unfortunately, most marine biological resources have not achieved the expected results. Many scholars have analyzed the deficiencies and defects in the breeding and releasing process from multiple angles, and put forward improvement measures. Our country has been carrying out multiplication and release since 1984, and now it has developed to a scale of more than a dozen species and tens of billions of tails (heads and grains) every year. [0003] The current multiplication and release of aquatic seedlings is usually packed with oxygenated seedlings and seawater sealed bags, transported by vehicles and ships to the...

AI Technical Summary

Problems solved by technology

[0004] (1) Breeding and release should be carried out in the sea at a certain distance from the shore. The sea climate changes are extremely complex. When encountering strong wind and waves in sea conditions, the seedling operation is carried out near the ship's side, and the labor intensity and risk factor of the operators will increase significantly. It is difficult to ensure the personal safety of the staff during the seed dumping process; it is very easy to cause the seedling personnel or seed bags to fall into the water

[0005] (2) Seedlings are stored in a sealed bag filled with oxygen and sufficient seawater without any buffering process; when they are suddenly poured into natural seawater in the field (weak seedlings fall into the water at high speed), the impact of the water flow is very strong, and the environment (Temperature, salinity, PH value) also change greatly; therefore, it is very easy to produce severe stress response and increase sudden death rate; affect the effect of proliferation, release and capture

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