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Subject: Aquaculture × Author: Bhatt, Anupama × End date: 2024 × Type: Thesis ×
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    ThesisItemOpen Access
    Plankton diversity of Haripura and Baur reservoirs of Uttarakhand
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-08) Bhatt, Anupama; Tewari, Hema
    Assessment of Phytoplankton and Zooplankton of two reservoirs namely Haripura and Baur was made from September 2016 to February 2017 in the present investigation to evaluate plankton diversity of the reservoirs. Three sites viz., S1 (boat stand near the stairs), S2 (1.5 km away from site S1) and S3 (near the boat monitoring room) were selected in Haripura reservoir whereas S1’ (near the unpaved road), S2’ (middle of the reservoir walking deck) and S3’ (near the boat monitoring room) were selected and fortnightly sampling was done. The important physico-chemical parameters such as temperature, transparency, TDS, electrical conductivity, pH, DO, free CO2, alkalinity, hardness, nitrate and phosphate of the both reservoirs were also analyzed which varied from 18-36 0C, 102-122.4 cm, 136-272 mg L-1, 75-187 µS cm-1, 6.55-8.65, 4.2-7.2 mg L-1, 4.8-16 mg L-1, 65-168 mg L-1, 95-230 mg L-1, 0.34-0.9 mg L-1, 0.005-0.038 mg L-1 and 1836 0C, 160.9-250.8 cm, 140-223 mg L-1, 75-168 µS cm-1, 7-8.64, 4.5-7.0 mg L-1, 6.5-12.6 mg L-1, 98-183.2 mg L-1, 160-220 mg L-1, 0.25-0.81 mg L-1, 0.010-0.035 mg L-1 in Haripura and Baur reservoirs respectively. The Phytoplankton mainly consists of Bacillariophyceae, Chlorophyceae, Chlorophyceae, Euglenophyceae and Dinophyceae whereas Zooplankton mainly consists of Rotifera, Copepoda and Cladocera. In Haripura, 21 genera of phytoplankton (9 genera of Bacillariophyceae, 7 genera of Chlorophyceae, 4 genera of cyanophyceae and 1 genera of Euglenophyceae) and 13 genera of zooplankton (5 genera of Rotifera, 4 genera of Copepoda and 4 genera of Cladocera) were recorded whereas in Baur, 27 genera of phytoplankton (11 genera of Bacillariophyceae, 9 genera of Chlorophyceae, 5 genera of cyanophyceae and 1 genera of Dinophyceae) and 17 genera of zooplankton (7 genera of Rotifera, 5 genera of Copepoda and 5 genera of Cladocera) were observed. The average density of phytoplankton and zooplankton at Haripura was 39,611 cells L-1 and 5050 ind. L-1 respectively whereas at Baur, it was 32,000 cells L-1 and 6150 ind. L-1 respectively. The study concludes that Baur reservoir is more diverse than the Haripura in terms of planktonic diversity due to less pollution and better hydrological regime. Also, the limnological parameters of both reservoirs revealed that the environmental conditions are good from fisheries point of view.