1选择适宜保苗池塘池塘以东西走向、长方形结构、沙底或硬质底为宜,储水深度在1.5m以上,盐度在35以下,进、排水方便,外海水源无污染。池塘进水前,要彻底清除池底污染层,并进行充分曝晒,冲刷池底。禁止在保苗池塘放养大规格底栖鱼类或其它需要大量投饵的品种,防止池水污 1 Select the appropriate seedlings Pond pond to the east-west, rectangular structure, sand bottom or hard bottom is appropriate, the storage depth of 1.5m above the salinity of 35 below, into the drainage convenient, polluted water source. Pond before the water, to completely remove the bottom of the pollution layer, and full exposure, erosion bottom. It is forbidden to stock large-sized benthic fish or other species that require a large amount of feeding in seedling-keeping ponds to prevent pond water pollution