一、地点选择水网箱设置区要求周围没有任何污染源,水深4米以上,水面较宽阔,底质平坦,水流畅通,避风向阳,水位比较稳定,水体透明度50厘米以上,pH7.0～8.5,溶氧量5毫克/升以上;要避开排洪流水区和水草丛生区。网箱设置区还要水陆运输方便等。二、网箱及设置1.网箱选用聚乙烯网片 First, the location selection Water cage set up the area requires no pollution around the source, the water depth of 4 meters above the water is broader, flat bottom, water flow, shelter from the sun, the water level is relatively stable, water transparency of 50 cm above pH7.0 ~ 8.5, Dissolved oxygen 5 mg / L or more; to avoid the flood drainage area and grasses. Cage settings area but also land and water transport convenience. Second, the cages and settings 1. Cages use polyethylene mesh