河口为鱼虾生物源地，水是自然生态环境，水质乃水产之本。对于养虾，亦当治虾之本治水质。１水是虾的自然生态环境河口水，是鱼虾产卵、孵化和幼体成长的自然生态环境，是生物之源地。生物毒性实验表明，在Ｚｎ２＋含量为２５，５０，１００，１５０μｇ／ｌ的海水中，中国对? Estuary as a biological source of fish and shrimp, water is a natural environment, water quality is the essence of aquatic products. For shrimp, also when the rule of shrimp Zhizhi water quality. 1 water is the natural ecological environment of shrimp River water, is a natural environment for fish and shrimp spawning, hatching and larval growth, is a biological source. Biotoxicity experiments showed that in the seawater with Zn2 + content of 25, 50, 100 and 150μg / l,