METHOD FOR GROWING OF TRIPANG LARVA TO VIGOROUS STAGE

FIELD: fish rearing.

SUBSTANCE: method involves placing caught producers into vessel filled with sea water and providing adaptation to keeping conditions; stimulating maturing of reproductive products and spawning of producers; providing spawning and incubating spawn; growing larva to the stage of settled young species; growing young species to vigorous stage. Maturing of reproductive products and spawning of producers are stimulated by gradually increasing water temperature by 0.5-1 C per day to lower threshold of spawning temperature, with following emptying of vessel, holding it free of sea water for 1-1.5 hours and repeatedly filling it with sea water, which had been preliminarily exposed to ultraviolet radiation and has temperature 1-2 C higher than temperature of sea water, where producers had been kept prior to emptying vessel. Young species are grown to vigorous stage on transparent corrugated tiered plates of polyvinyl chloride. Method allows tripang survival rate to be increased on the average up to 30% beginning from spawn incubation stage to vigorous stage of settling of young species on ground.

EFFECT: increased efficiency, simplified method and improved quality of spawning. 2 cl, 2 ex

Gostjukhina O.B., Brovkina E.P., Os'machko V.A., Shatkovskaja O.V.

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