CULTURE DEVICE FOR LARVAE OF FRESHWATER PRAWN

To provide a culture device for larvae of freshwater prawn capable of reducing a water temperature change in a culture water tank, suppressing a water temperature distribution in the culture water tank, and preventing induction of a strong water flow in the culture water tank, for preventing extinct...

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1. Verfasser: OKUI TOSHIYUKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a culture device for larvae of freshwater prawn capable of reducing a water temperature change in a culture water tank, suppressing a water temperature distribution in the culture water tank, and preventing induction of a strong water flow in the culture water tank, for preventing extinction of larvae of freshwater prawn and improving a survival ratio.SOLUTION: A culture device for larvae of freshwater prawn comprises: a container whose whole wall surfaces are subjected to heat insulation processing; a culture water tank installed in the container; a raw water tank installed in the container; and an atmospheric temperature control unit which is installed in the container and controls an atmospheric temperature in the container. The atmosphere subjected to temperature control is circulated into the container, for maintaining, at least a water temperature of the culture water tank to a constant temperature, and minimizing a water temperature distribution in the culture water tank.SELECTED DRAWING: Figure 1 【課題】飼育水槽内の水温変化を少なくし、飼育水槽内における水の温度分布が生じにくくすると共に、飼育水槽内に強い水流を誘起させることの無いテナガエビの幼生の飼育装置を提供することによって、テナガエビの幼生の死滅を防止し、生存率を向上させることを課題とする。【解決手段】全壁面を断熱処理したコンテナと、コンテナ内部に設置された飼育水槽と、コンテナ内部に設置された原水槽と、コンテナ内部に設置され、コンテナ内部の雰囲気温度を制御する雰囲気温度制御装置とを備え、温度制御された雰囲気をコンテナ内部に循環させることにより、少なくとも、飼育水槽の水温を一定温度に維持すると共に、飼育水槽内の水温の温度分布を最小化する構成のテナガエビ幼生の飼育装置とした。【選択図】図1