Method for breeding marine shellfish family in larval stage

Abstract

The invention discloses a method for breeding a marine shellfish family in a larval stage. The method comprises the following steps that a set of external tank bodies are arranged, and an internal netcage is arranged in each external tank body; a high-level water tank for water addition is arranged at the tops of the external tank bodies, and water is discharged from the bottom of the high-levelwater tank to the internal net cages through a water outlet pipe; sinonovacula constricta larvae which are developed to trochelminth larvae are collected by a 300-mesh boulting cloth and transferred to the internal net cages; filtered and disinfected water is added to the high-level water tank and discharged into the internal net cages through the drainage pipe separately, and the internal net cages are oxygenated for breeding; a mixed solution of chrysophyceae and chaetoceros is added to the high-level water tank three times in total every day in the morning, afternoon and evening and discharged into the internal net cages through the drainage pipe; when water replacement and cleaning are needed in the breeding process, water discharge valves at the bottoms of the external tank bodies areopened for water replacement and pond overturning and emptying treatment until breeding is completed, it is only required to add the mixed algae solution to the high-level water tank in the breedingprocess, the labor intensity is reduced, and the problems in the background art are effectively solved.

Description

technical field [0001] The invention relates to the technical field of seawater shellfish larvae cultivation, in particular, the invention relates to a method for cultivating seawater shellfish family larvae. Background technique [0002] There is a larval stage in the life history of shellfish. The survival rate of larvae in this stage is very low, and the requirements for water quality are very high, and they are easily damaged and deformed. Therefore, the operation of changing water for larvae is very demanding. The main idea of ​​​​changing water is to filter out the larvae with a sieve and add new water. The traditional water changing method is to pour the water onto the sieve to complete the collection of larvae, including many siphon methods, but these methods are too time-consuming, labor-intensive and cause great mechanical damage to the larvae. Especially in scientific research experiments such as raising razor clam seedlings and establishing family lines, a large...

AI Technical Summary

Problems solved by technology

The traditional method of water change is to pour the water onto the sieve to complete the collection of larvae, including many siphon methods, but these methods are too time-consuming, labor-intensive and cause great mechanical damage to the larvae

Especially in scientific research experiments such as raising razor clam seedlings and establishing family lines, a large number of family line water changes will consume a lot of time and labor

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