水域里含有重金属会对鱼具有严重的毒害作用,这是人所共知的。韦斯特福尔认为受重金属污染较重而使鱼致死,是由于鱼鳃粘液被凝聚而窒息造成的。斯基德莫尔和托维尔最近提出,鱼被窒息而死与其说是鳃粘液被凝聚所致,倒不如说是因鳃细胞遭到破坏造成的。出现上述情况时,鳃细胞坏死,会破坏鳃的呼吸功能,这是肯定无疑的。斯基德莫尔对虹鳟受硫酸锌毒害所引起 It is well-known that heavy metals are contained in the waters and cause serious toxic effects on the fish. Westford believes that heavier pollution caused by heavy metals and let the fish die, due to fish gill mucus is caused by the aggregation and suffocation. Skidmore and Tovell recently suggested that the death of a fish suffocating is not so much a result of aggregation of gill mucus, rather than damage to the gill cells. Appear in the above situation, the gill necrosis, will undermine the respiratory function of the gills, which is undoubtedly. Skidmore is caused by zinc sulfate poisoning of rainbow trout