Compared to the pre-1990 survey, we found that diversity of fish species in the study area deceased to some extent, especially species in Cartilaginous or Tetraodontidae families.

• 与1990年以前的调查资料相比, 长江河口湿地鱼类物种数有所减少, 其中软骨鱼类和鲀科鱼类下降相对较多。