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Article Name : | | Zooplankton Diversity Of Dnyanganga Reservoir Near Khamgaon, Maharashtra | Author Name : | | G. B. Kale | Publisher : | | Ashok Yakkaldevi | Article Series No. : | | GRT-2852 | Article URL : | | | Author Profile View PDF In browser | Abstract : | | Study on zooplankton diversity of Dnyanganga Reservoir in Botha forest of Buldana district was carried out during 2008-09. The zooplankton study reveals that the Copepods are major in occurrence, 3079 in number (32.28%); Cladocera are 2323(24.36%); Rotifers in 2976(31.20%); and Ostracods are 1158 in number (12.14%). The lake exhibited high magnitude in winter season and the low during summer. The less number of genera might be attributed to low nutrients in the reservoir which consequently resulted in less productivity or might be due to depletion of important factors such as dissolved oxygen and PH. The reduction in the number of species may also due to predation and variation in the pH of water which is always associated with the species composition of zooplankton inhibiting among them .In winter, it is biotic interaction operating through feeding pressure rather than water quality seems to affect the zooplankton diversity and density particularly the stocked fish species play an important role in harvesting species of copepoda and Cladocera, thereby reducing their predatory pressure on other groups. The Rotifera and particle feeder Cladocera were higher in winter and can be linked to favorable temperature and availability of abundant food in the form of bacteria, nanoplankton and suspended detritus matter .Total 26 types of genera were recorded which indicates variable nature of productivity the Dnyanganga Reservoir . | Keywords : | | |
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