Based on the surveys of fishery resources conducted from year 1982 to 1983,161 fish species from 2 classes,18 orders,53 families and 113 genus had been collected,among which there were 130 species of estuary fishes and 31 species of freshwater fishes. Perciformes and Clupeirformes were once the predominant fish species in Dongguan Sea Waters.However,according to the second investigation from year 2009 to 2010,it was indicated that only 93 species had survived and 68 species belonging to 2 orders,9 families ...
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