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本文报道了紫海胆人工育苗、人工诱导变态的方法 .紫海胆浮游幼虫可分为棱柱幼虫、二腕幼虫、四腕幼虫、六腕幼虫和八腕幼虫 5个期 ,历时约 1 1d ,角毛藻是浮游幼虫合适的饵料 .幼海胆则以摄食底栖硅藻为主 .育苗 1个月幼海胆最大壳径为1 .5mm .透明的聚乙烯片是合适的附着材料
In this paper, the methods of artificial seedling raising and artificial induced metamorphosis of purple sea urchin are reported.The purple sea urchin plankton larvae can be divided into five stages: the prism larvae, the second larvae, the fourth larvae, the six larvae and the eight larvae, Algae is a suitable bait for plankton larvae, while juvenile sea urchin mainly feeds on benthic diatoms. The maximum shell size of young sea urchin at 1 month after nursery is 1 .5 mm. The transparent polyethylene sheet is a suitable attachment material