Community Of Zooplankton And Assessment To Water Quality In Bohai Bay

It is an important part to zooplankton in the marine ecosystem, the action is pumping action which is a connecting link between the preceding and the following in matter cycling. The distribution and the community relation to the entironment very much that has indiction action to the marine ecosystem, furthermore.The result indicated that the abundance of zooplankton range from 328.9ind/m3 to 2651.5ind/m3 with an average of 2651.5ind/m3 by through analyzing to structure of community in Bohai Bay in paper. The copepod was major component in zooplankton and its number was more than others and showed itself dynamic seasonally. There was a peak in Spring besides there were tow small peaks in Summer and in Autumn. because the Paracalanus parvus,Acartia pacifica,Oithona sp which were dominated in zooplankton were in a state being propagating in Spring . there were some copepods of Paracalanus parvus,Paracalanus crassirostris,Oithona sp and some larvas which in the same state being propagating in Summer and in Autumn, based on datas researched and sampled in Bohai Bay from 2003 to 2004.There was a trend which indicated that the abundance of zooplankton was much in shore more than far shore little by little from in shore to far shore, it is show itself dynamic space obviously based on data of abundance on every station in every season from 2003 to 2004 by through constructing figure of sufer and excel.The distribution of zooplankton relation to the genes of entironment very much, for example temperature, salinity, pH, chlorophyll and so on, it can be seen the trend is oppsition to the dynamic temperature and the dynamic salinity in low water period, but oppsition to the dynamic salinity and same with dynamic temperature in high water period by tool of sufer and excel, on the whole. There is a high abundance from 7.9 to 8.0 to pH , moreover, Based on data investigative ceporting to zooplankton in Bohai Bay.It is show that the sea area of Bohai Bay has been polluted comparatively by ordure from land and developing of marine product by through assessment to water quality combine diversity index in paper.