Sea area intermediate breeding method applicable to Ruditapes philippinarum seedlings

Abstract

The invention discloses a sea area intermediate breeding method applicable to Ruditapes philippinarum seedlings, comprising the following steps: preparing an intermediate breeding tool of Ruditapes philippinarum seedlings; collecting seedlings with a mesh bag and hanging at sea for breeding; keeping normal water temperature, salinity and pH hydration index during intermediate breeding management at sea, brushing the bag every seven days, cleaning fluid mud and removing attachment to ensure smooth water flow of the mesh bag; after the size of the Ruditapes philippinarum seedlings reaches 1mm, selecting a mesh bag with 20 meshes and transferring on the sea according to the density of 5000 granules / bag, and temporarily breeding once again according to the above sea area hung breeding way; and after the size the Ruditapes philippinarum seedlings reaches 2mm, selecting a mesh bag with 10 meshes and transferring on the sea according to the density of 2000 granules / bag, and then hanging for breeding once again according to the above sea area hung breeding way. The method has the characteristics of simple process steps, easy operation and control and low cost, and improves the yield of unit water body.

Description

technical field [0001] The invention relates to a sea area intermediate breeding method suitable for Philippine clam seed. Specifically, when the clam spat reaches a certain specification, the spat is packed into a polyethylene mesh bag at a certain density and hung on a scallop floating raft in the sea area. On temporary care. Along with the growth of clam seed, replace big mesh bag gradually, evacuate seed density. This method improves the survival rate of clam seedlings, accelerates the growth rate of clam seedlings, shortens the indoor cultivation time of seedlings, improves the utilization rate of seedling cultivation workshops, and thus increases the annual growth rate of clam seedlings per unit water body. Yield. Background technique [0002] At present, many scholars have conducted research on the biology and ecology of Philippine clam culture. In recent years, major breakthroughs have been made in the healthy breeding of Philippine clams in the northern sea area ...

AI Technical Summary

Problems solved by technology

However, there have been no reports on the intermediate breeding of clam seedlings in sea areas. Carrying out research on intermediate breeding of Philippine clams in sea areas and moving indoor spat to sea areas for temporary cultivation can effectively improve the utilization rate of nursery workshops and increase the output per unit of water. It provides a new idea for the efficient and ecological cultivation of clam seedlings, and also has reference value for the intermediate cultivation of other tidal flat shellfish species

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