Method for cultivating shellfish offspring seeds by culture water

Abstract

The invention discloses a method for cultivating shellfish offspring seeds by culture water. The method comprises the steps of: placing microalgae with shrimps in a culture pond and cultivating; and then, introducing microalgae containing culture water in a culture pond into a nursery pond to cultivate shellfish offspring seeds. According to the method provided by the invention, environmental pollution caused by eutrophication of water body in the culture pond can be avoided, the microalgae culture amount is large, and the microalgae grows rapidly, so that the demand for cultivating shellfish offspring seeds in a large scale is satisfied.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating shellfish fry using aquaculture water. Background technique [0002] In traditional aquaculture technology, seawater is generally directly introduced into seawater as aquaculture water for shrimp farming. Seawater may contain microorganisms harmful to shrimp, which are unfavorable to the growth of shrimp, and in the middle and late stages of farming, residual bait and shrimp feces are left behind due to a large amount of feeding. At the bottom of the pond, it is easy to cause eutrophication of the aquaculture water body, and the water body needs to be replaced in time. The discharge of the eutrophic water body will pollute the environment. [0003] When cultivating shellfish seedlings, microalgae are needed as bait for shellfish seedlings. To cultivate microalgae, it is necessary to build a microalgae cultivation pond separately. To expand the cultiva...

AI Technical Summary

Problems solved by technology

[0003] When cultivating shellfish seedlings, microalgae are needed as bait for shellfish seedlings. To cultivate microalgae, a microalgae cultivation pond needs to be built separately. To expand the cultivation of microalgae in the microalgae cultivation pond, it is necessary to regularly add the nutrient solution required by the microalgae. , this method often has the following problems: the cost of building a microalgae culture pool alone is high, the scale is limited, the supply of microalgae is small, the amount of shellfish seedlings is limited, and the microalgae is cultured only artificially. Adding the nutrient solution needed by microalgae in the pool often makes the nutrients needed by the microalgae in the microalgae breeding pool insufficient and the nutrition is not rich enough, making the growth and reproduction of the microalgae slow, unable to meet the needs of shellfish seedlings, and making shellfish seedlings insufficient. bait, so that the growth of shellfish seedlings is slow and the survival rate is low