Evaluation Of The Effects Of Humem Port Rebuilt On The Fishery Water Ecosystem

After the start of renovation project of Humen port, it is bound to bring about a certain environment around the fishing industry on the environment and the fishing industry will inevitably lead to changes in the output of the fishing industry, fishing patterns, fisheries resources, fisheries composition. Humen port fishing environmental impact assessment is to find out how this change is, and the way to solve the problem. This paper mainly survey and analyze the impact of renovation project on the water quality of Humen conditions in Hong Kong waters, fisheries resources and biomes. Survey results are as follows:1. The pH of water is in good shape, in the scope of biological growth than fitness. Evaluation of water did not exceed surface water Class III water standard. Evaluation of water quality of the water environment is slightly better than the right side of the water left, the water quality at high tide receded slightly better than the temporal and spatial distribution characteristics. Water environmental quality status in the aquatic ecosystem can withstand the critical level.2. Evaluation of the ecological status of planktonic algae nutrition grading standard method used with abundance of algae to judge and evaluate the overall nutrition water level in nutrition for the waters in the abundance of algae in the 10 s-level. From another instructional biological specie, the water pollution and nutritious indicative of algae dominance are not obvious.3. Zooplankton species are of 11 stocks, a total of 58 kinds. Eggs and larvae found a total of 43 kinds, and the Pearl River estuary region are fish spawning year. Swimming biological spices is 108 kinds, including fish 89 kinds, accounting for the number of 82.41 % swimming species, shrimp 15 kinds, accounting for the number of 13.89%, rarely cephalopod, only 4 kinds, accounting for the number of 3.70%. They just appear in March, October and November in the southern waters through the evaluation. The types and the number of fish is of advantage. Benthic animals molluscs biomass as the highest, with more moderate aerobic benthic organisms exist, and the water body suited Zoobenthos survival. Population is abundant, structure is reasonable.