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EFFECT OF ECOLOGICAL FLOATING BED ON ZOOPLANKTON COMMUNITY STRUCTURE IN A MARICULTURE POND
Author(s): 
Pages: 354-359
Year: Issue:  2
Journal: Oceanologia et Limnologia Sinica

Keyword:  ecological floating bedin-situ restorationzooplanktoncommunity structure;
Abstract: The community structure of zooplankton was studied during the process of in-situ restoration in a mariculture pond, the respond relationship between the biodiversity of zooplankton and the water quality was analyzed. The results showed:(1) Ecological floating bed showed a good function in improving mariculture pond water and depositional environments. Compared to the control area, transparency increased significantly, and the water chemical factors, such as TN, NH4-+N, TP, COD and sediment organic carbon, were all lower in the test area, especially TN, COD and sediment organic carbon showed decreased significantly(P<0.05).(2) The species of zooplankton in the test area increased to 40, more than that 34 species in the control area. Each zooplankton density in test area was higher than that in the control area, and increased from 13559 ind./L to 15933 ind./L in average. The biodiversity index also increased, of which Shannon-Wiener diversity index(H¢) and Margalef species richness index(D) increased from the original 0.94 and 1.05 to 1.01 and 1.57, respectively. The zooplankton diversity in test area showed higher recovery ability than that in control area, indicated that employment of in-situ restoration technology of ecological floating bed was effective in improving mariculture environment.
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