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(一)光照 要求阳光充足。光对水体不仅带来光照,还直接产生热效应,是水中动植物生长所必须的能源。是决定水体中生物生产力高低的重要因素,故滤食性鱼类养殖的网箱设置在背北向南的区域。
(A) The light requires plenty of sunshine. Light on the water not only bring light, but also have a direct thermal effect, is the growth of water plants and animals necessary energy. Is to determine the level of biological productivity of water an important factor, so the filter cage fish culture cage set in the north to south of the area.