Shellfish cultivation method using deep-water stand raft

Abstract

The invention relates to a shellfish cultivation method, in particular to a shellfish cultivation method using a deep-water stand raft. Breeding water layers for culture breeds are determined according to factors, such as biological habits of cultured shellfish, water temperature of culture environment, stability of the water temperature of the culture environment, feed, harmful organisms and the like. Water of a stand raft arrangement area is 30-60m deep. Ropes on fixed pegs are connected with a raft body, and two ends of each rope are fixed at the seabed. The whole raft body is held down on the seabed through a plurality of weights at intervals. Buoys are disposed on the raft body. One end of each shellfish cultivation cage is suspended to the raft body through a suspension rope, and one buoy is tied to the other end of each shellfish cultivation cage through a floating rope. The effective length of each suspension rope is 0.6-1.2m. A new mode of shellfish culture is initiated in the method, the advantage of water temperature difference of deep water more than 16m deep is fully utilized, a water environment with stable temperature is provided for shellfish, intermediate breeding survival rate of fry and development speed of the fry are increased, sea resources are fully and effectively utilized, and upgrade of the shellfish industry is positively promoted.

Description

technical field [0001] The invention relates to a shellfish culture method, in particular to a deep-water platform raft shellfish culture method. Background technique [0002] At present, in my country's coastal areas, shellfish farming has developed rapidly, and has become a key aquaculture industry in northern my country's Liaodong Peninsula, Shandong Changdao and other sea areas. Shellfish farming mainly adopts two methods: bottom-seeding multiplication (release multiplication) and floating raft culture. . Bottom-seeding multiplication method guarantees the natural growth of organisms in the natural environment. As a healthy breeding model, it makes full use of the self-purification ability of seawater to ensure the safety and quality of cultured organisms, and has the advantages of less impact on natural environment changes such as wind and waves. Not all places are suitable. The water temperature must be suitable, and the bottom of the sea is mostly mud-sand or sand-mi...

AI Technical Summary

Problems solved by technology

Bottom-seeding multiplication method guarantees the natural growth of organisms in the natural environment. As a healthy breeding model, it makes full use of the self-purification ability of seawater to ensure the safety and quality of cultured organisms, and has the advantages of less impact on natural environment changes such as wind and waves. Not all places are suitable. The water temperature must be suitable, and the bottom of the sea is mostly mud-sand or sand-mixed areas such as rocky reefs and sandstone bottoms. Sea areas such as soft mud bottoms cannot be used for bottom seeding and multiplication.