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栉孔扇贝大面积半人工采苗生产技术的研究
柳中传¹
山东长岛县水产研究所

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LARGE SCALE SEMI-ARTIFICIAL GATHERING OF LARVAE SCALLOPS FOR BUMPER HARVEST

Abstract:

1. This is a report of successful semi-artificial gathering of larvae scallops in years from 1981 to 1983. 2. 2.47 million gathering bags were cast over the whole County and achieved an exceptional bumper harvest in 1983. The average catch per bag reached about 1000 spats, and a maximum of 6000, the sizes of which were between 0.5 and 1.5 cm. 3. The best time to cast the gathering bags is when fifty or sixty percent of the larvae grow up to 185 microns in length in the Northern Islands. 4. The proper depth for casting the gathering bags is 3-8 m below the sea surface. 5. Management should be enforced after the gathering bags were cast into the sea.

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