Marine shellfish germchit intermediate cultivation device and application method thereof

Abstract

The invention discloses a marine shellfish germchit intermediate cultivation device and a culture method integrating marine shellfish germchit intermediate cultivation and shellfish nurturance, wherein the culture method comprises the following steps of: placing the marine shellfish germchit intermediate cultivation device at the upper layer of a culture water body of a marine shellfish culture pond, placing shellfish germchits in the marine shellfish germchit intermediate cultivation device for carrying out the intermediate cultivation of the marine shellfish germchits and carrying out the shellfish nurturance in the middle-lower water body in the culture pond. The invention fully utilizes the upper-layer space of the culture water body, realizes the purpose of germchit supply and nurturance self-sufficiency, increases incomes, reduces culture risks, has simple and easy operation and can be widely popularized and applied.

Description

technical field [0001] The invention belongs to the field of aquaculture, and specifically relates to an intermediate cultivation device for marine shellfish fry and a cultivation method integrating the intermediate cultivation of marine shellfish fry and shellfish cultivation. Background technique [0002] In the traditional tidal flat, the intermediate cultivation and cultivation of shellfish seedlings are carried out separately. The intermediate cultivation of seedlings is usually carried out by artificial breeding indoors when the shell length reaches about 1mm, and then sown in the tidal flats in the designated area, and is carried out by natural growth. Intermediate cultivation, and collection of large-sized seedlings, but the above methods have disadvantages such as low survival rate, low efficiency, difficulty in collecting seedlings, and unfavorable management due to the great influence of natural environment conditions, which seriously restricts the tidal flat shell...

AI Technical Summary

Problems solved by technology

[0002] The intermediate cultivation and growth of traditional tidal flat shellfish seedlings are carried out separately. The intermediate cultivation of seedlings is often carried out in the indoor artificial cultivation to reach a shell length of about 1 mm, and then spread in the tidal flats in the demarcated area, through natural growth. Intermediate cultivation, collection of large-scale seedlings, but the above-mentioned method has the disadvantages of low survival rate, low efficiency, difficulty in seed collection, and unfavorable management due to the great influence of natural environmental conditions, which seriously restricts the tidal flat shellfish. seedling growth

There are a few units at home and abroad that use passive upwelling circulation systems or planar flow circulation systems for intensive cultivation of shellfish seedlings. Although this device has the advantages of high survival rate and fast growth, it also has some shortcomings, such as the cultivation device. The small scale is not conducive to the cultivation of large-scale seedlings, the equipment cost is high, the system is complicated, and the operating cost is high. It does not have the conditions for stable and continuous operation, which is not conducive to the large-scale cultivation and extensive promotion of shellfish seedlings.

[0003] The cultivation of tidal flat shellfish often requires the purchase of large-scale seed for breeding, which is often greatly affected by the fluctuation of seed price and seed quantity, and most of the marine shellfish in the breeding process are buried shellfish , can make full use of the space and bait in the middle and lower layers of the water body, but the utilization of the upper layer of the water body is not high, so the breeding space has not been fully utilized, and the breeding benefits have been affected to a certain extent

benefit has been affected

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