Device for breeding patinopecten yessoensis at the bottom of sea and breeding method thereof

Abstract

The invention relates to a device for breeding patinopecten yessoensis at the bottom of a sea and a breeding method thereof and belongs to the technical field of patinopecten yessoensis aquaculture. The device for breeding patinopecten yessoensis at the bottom of the sea comprises a rectangular frame I provided with grid ropes I, a rectangular frame II provided with grid ropes II and four connecting pieces. The four connecting pieces make four corners of the rectangular frame I and four corners of the rectangular frame II connected to form a shape of four pyramid frustums. The top of a net cage is connected with the rectangular frame I and the grid ropes I, and the bottom of the net cage is connected with the rectangular frame II and the grid ropes II. The device for breeding patinopectenyessoensis at the bottom of the sea can be used at the mud bottom or sandy bottom, attachment of attachment objects such as mussels is effectively avoided, a water environment is relatively stable dueto low aquaculture water temperature, and improvement of the patinopecten yessoensis survival rate is facilitated.

Description

technical field [0001] The invention relates to a device for cultivating scallops on the seabed and a cultivation method thereof, belonging to the technical field of scallop cultivation. Background technique [0002] Pationopecten yessoensis, belonging to the phylum Mollusca, class Lamellibranchia, subclass Pterimorphia, order Pterioida, family Pectinidae, genus yessoensis; cold-water bivalve mollusk , native to the coastal waters of northern Japan and the Russian Far East, generally submerged on the bottom of the inner bay in the subtidal zone with the left shell, the small environment is generally a hard bottom with no freshwater injection and less silt, and the natural distribution is 6-80 meters deep Not equal; the breeding production is active in the area between 38-45° north latitude. In the 1980s, Ezo scallop was introduced into my country from Japan, artificial seedling breeding and multi-breeding technology made continuous breakthroughs and matured, and Ezo scallop...

AI Technical Summary

Problems solved by technology

Raft cultured scallops have a high utilization rate of sea surface, short production cycle and strong artificial control, but are easily affected by the natural environment. Large-scale farming is not conducive to the growth of scallops and is prone to diseases; while bottom-sowed scallops are closer to In the natural ecological environment, the growth environment of scallops is relatively stable and the quality is higher, but the requirements for the bottom quality and the bottom sowing area are relatively high, which is relatively uncontrollable, and the requirements for the hardware and software of the enterprise are also higher

[0004] Since 2007, second-year-old scallops in raft culture have died on a large scale for many years, and farming enterprises can only breed young and first-year-old scallops, which has caused serious economic losses to the local government and is also very unfavorable to the sustainable development of the industry.

Although the survival rate of bottom-sowing cultured scallops is relatively high, due to the high requirements of bottom-sowing culture on the substrate, large areas of mud bottom and sediment bottom sea areas cannot be used, resulting in a low utilization rate of the seabed. The method will also cause some damage to the substrate

Images