HEAVY METAL TOXICITY TO FRESH WATER ZOOPLANKTERS IN RELATION TO TEMPERATURE VARIATIONSM.S. SHARMA, C.S. SELVARAJ, N. CHISHTY AND RANU SHARMAAbstract Water temperature variations are found to influence sensitivity of fresh water Zooplankton to heavy nietal toxicants. static short term bioassay exposing representative fresh water zooplankters to different concentrations of Zinc, Lead and Cadmium revealed that sensitivity of Daphnia to metal and thermal stress was higher than cyclops and cypris. The most resistant planktonic animal against varying metal concentrations and different water temperatures was observed to be cypris.
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