Rising and falling flow culture facility suitable for juvenile mollusk culture

Abstract

The invention belongs to the field of aquaculture projects, and particularly relates to a rising and falling flow culture facility suitable for juvenile mollusk culture. The facility comprises a culture tank, tray type culture frames, a two-way adjustable water inflow and drainage system, a water level regulator and a water treatment system. The tray type culture frames are arranged in the culture tank and can be flexibly installed and transferred; bolting-silk nets of the tray type culture frames can be conveniently and rapidly detached and replaced, and the effective culture area is large; juvenile mollusks on culture trays can be located in a falling flow field or a rising flow field by regulating valves of the two-way adjustable water inflow and drainage system, and the facility can adapt to culture of juvenile mollusks at different growth stages; the water level and flow rate of the culture system can be regulated through the water level regulator. The facility is suitable for culture of metamorphosed juvenile mollusks to large-size seedlings, can effectively increase the juvenile mollusk culture density per unit area, can meet the requirements of juvenile mollusks for water flow at different growth stages through simple adjustment and is an efficient circulating aquaculture facility adapting to large-scale culture of juvenile mollusks.

Description

technical field [0001] The invention belongs to the field of aquaculture engineering, in particular to an up-and-down flow culture facility suitable for the cultivation of juvenile shellfish. Background technique [0002] The culture of individual oysters, especially the culture of triploid individual oysters, puts forward new requirements for the current shellfish culture facilities in my country. For the cultivation of oyster larvae after metamorphosis to the stage of large-scale single seedlings, there is no fully functional facility at home and abroad. Due to the different growth stages of oyster spat, two different flow fields, downflow and upflow, are required to avoid the loss of oysters and meet the needs of their growth. The traditional breeding method is to switch the up and down flow by replacing different breeding facilities at different stages. The operation of seed transfer is large, and some facilities are left idle. Not only that, most of the breeding conta...

AI Technical Summary

Problems solved by technology

The traditional breeding method is to switch the up and down flow by replacing different breeding facilities at different stages. The operation of seed transfer is large, and some facilities are left idle.

Not only that, most of the breeding containers are cylindrical, so the effective use of space is low, and the distribution of the flow field is uneven, the breeding efficiency is not high, and the breeding mode is mostly flowing water farming; for many seedling cultivation using coal and electric heating As far as breeding factories are concerned, the flow-through cultivation mode causes a large amount of energy consumption, which will inevitably be eliminated by the industry in the near future

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