High density upflow shellfish larva cultivating device and method

A cultivation device and high-density technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of large area of ​​nursery field, large area, backward cultivation facilities and technology, etc.

Inactive Publication Date: 2004-12-15
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
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Problems solved by technology

The facilities for cultivating shellfish seedlings are generally large cement ponds with large water volume and low breeding density. At present, the breeding density of planktonic larvae for shellfish seedling cultivation is generally about 10/ml. The interval time is long and the labor intensity is high; the bait is generally thrown directly on the water surface of the pond, and the bait is uneven in the water; the amount of aeration in the

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  • High density upflow shellfish larva cultivating device and method

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Embodiment Construction

[0014] As shown in Figure 1, the main body of the high-density upwelling shellfish larva cultivation device is an incubator 8 made of glass fiber reinforced plastics. The upper part of the incubator 8 is cylindrical or nearly cylindrical, with an inner diameter of 80 cm and a height of 70 cm; the lower part is conical with a height of 40 cm; the effective water body is 400 liters. The inner wall is coated with food gel coat, which is smooth and delicate, and the joints are smooth and free of cracks, so that the inner wall of the incubator is kept clean and dirt is not easy to accumulate. The support 1 provided at the bottom supports and fixes the incubator 8 .

[0015] The bait storage tank is arranged on the top of the cultivator 8, and the bait is delivered to the tank by an automatically controlled water pump to keep the amount of bait substantially constant. The bait conduit 5 is shunted by the bait algae delivery pipe of the bait storage tank, and then introduced into th...

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Abstract

The present invention provides high density upflow shellfish larva cultivating device and method. The cultivating device is one barrel with cylindrical upper part and conic lower part, and has bait and sea water canal inserted from the top into the bottom, filtering drum with outside thin silk net in the upper part, draining pipe with one end connected to the filtering drum and the other end stretched outside, and ventilation pipe introduced from the tip of conic part and with airstone connected. The cultivating method features the density of type-D shellfish larva 140-160/ml, bait adding amount of 5000-15000 cell/ml.day, water flow amount of 7-10 times/day, and ventilation amount of 2-4 L/min. The present invention has raised cultivation density and survival rate.

Description

technical field [0001] The invention belongs to the shellfish seedling raising technology in the aquaculture technology, and is a facility and process for cultivating shellfish larvae on a production scale, specifically a high-density upwelling shellfish larvae cultivating device and a cultivation method. Background technique [0002] At present, the technological level and supporting equipment of shellfish seedlings in my country are relatively backward. The facilities for cultivating shellfish seedlings are generally large cement ponds with large water volume and low breeding density. At present, the breeding density of planktonic larvae for shellfish seedling cultivation is generally about 10 / ml. The interval time is long and the labor intensity is high; generally, the bait is directly thrown on the water surface of the pond, and the bait is uneven in the water; the amount of aeration in the water is small and uneven, which directly affects the feeding and normal growth a...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 方建光刘慧张继红于守团
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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