A method and device for promoting shell larvae shell generation

Abstract

The invention provides a method and device for promoting the formation of shellfish larva shells, belonging to the technical field of aquaculture, by adjusting the carbonate system of cultured seawater, including adding sodium bicarbonate into the seawater, then mixing, and then adding The seawater is filled with filtered air that removes carbon dioxide, so that the filtered air is fully dissolved in the seawater obtained by stirring and mixing, and the adjustment result of the carbonate system of seawater is accurately determined. When the pH value of the water body reaches 8.3‑8.5, it can be used For the cultivation of shellfish larvae; in addition, the present invention also provides a kind of device that promotes shellfish larvae shell generation, comprises purification body, storage tank, breeding box and water tank, and the air outlet of purification body connects storage tank through the first pipeline, stores The water tank is connected to the breeding box through the second pipeline, and the water tank is connected to the breeding box through the third pipeline. The invention can not only increase the pH buffering capacity of the water body, delay the drop rate of the pH of the water body, increase the growth rate of the larval shell, but also reduce the shellfish larval shell deformity rate.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method and a device for promoting shellfish larval shell formation. Background technique [0002] The shell of shellfish is very important to the growth of shellfish. The development of the shell in the growth stage of shellfish larvae is the basic stage of the growth of the shellfish shell. However, in the cultivation stage of shellfish larvae, the breeding density is generally high, and a large number of larvae The carbon dioxide produced by respiration causes the pH value of the aquaculture water to drop rapidly. When the pH value of the water body drops to a certain level, the formation of the shell of the larvae will be inhibited, affecting the growth of the shell, and even deformed, eventually leading to the death of the larvae. The main solution at this stage is to increase the frequency of changing the water body. Generally, the water needs to be changed once every ...

AI Technical Summary

Problems solved by technology

[0002] The shell of shellfish is very important to the growth of shellfish. The development of the shell in the growth stage of shellfish larvae is the basic stage of the growth of the shellfish shell. However, in the cultivation stage of shellfish larvae, the breeding density is generally high, and a large number of larvae The carbon dioxide produced by respiration causes the pH value of the aquaculture water to drop rapidly. When the pH value of the water body drops to a certain level, the formation of the shell of the larvae will be inhibited, affecting the growth of the shell, and even deformed, eventually leading to the death of the larvae

The main solution at this stage is to increase the frequency of water changes in the water body. Generally, the water needs to be changed once every 2-6 hours. However, the process of changing the water is time-consuming and laborious. If the operation is not careful, it will also increase the probability of damage to the larva shell

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