Based on the monitoring and analysis of the creatures in the offshore area of Nantong during 2006—2015 ,it is con-cluded that the seawater was basically in the state of poor or medium nutrient level and the trophic level indexes decreased first,then remained stabale ,and a decreasing trend followed at last .The benthos species were paucity ,the diversity index of the benthos showed a slightly declining .The phytoplankton species were stable ,but the zooplankton was rather significant changed during these years .Analysing the dominant species , those dominant species own obvious advantages on proportion , the main type of benthos was the bacillariophyta ,the skeletonema costatum was the main dominant species in many years .In the zoo-plankton the main type was the planktonic crustacean .The estuarine brackish species and coastal low salt species just as labi-docera euchaeta were more ,it should be emphasized .
NETL
NSTL
维普
万方数据
