Research Journal of Animal, Veterinary and Fishery Sciences __ _____________ ______ ____ ___ ISSN 2320 – 6535 Vol. 1 ( 2 ), 7 - 8 , March (201 3 ) Res. J. Animal, Veterinary & Fishery Sci. Int ernational Science Congress Association 7 Short Communication Phytoplanktons Variation with Respect to Ichthyofaunal Studies of Bhandardara Dam, MS, India Dhamak R . M . , Tilekar B . B . , Ghadage M . K . , Theurkar S . V . and Patil S . B . * JJT University, Jhunjhunu, Rajasthan, INDIA Dept. of Zoology, Hutatma Rajguru Mahavidyalaya, Rajgurunagar, Tal. Khed, Dist. Pune, INDIA Available online at: www.isca.in Received 1 st February 201 3 , revised 201 3 , accepted 201 3 Abstract The Western Ghats is an important biogeographic zone of India and one of the thirty four global hot spots. Variation in the diversified group of phytoplanktons has been observed and depicted in the paper Cyanophyta with 5 numbers of species Chlorophyta with 22 numbers of species Bacillariophyta with 14 numbers of species Xanthophyta with single number of species were recorded from the region. Keywords: Bhandardara Dam, p hytoplanktons, Ahmednagar district. Introduction Wilson Dam is located at Bhandardara in western part of the Ahmednagar district in Maharashtra. It is also commonly known as Bhandardara Dam. It is built across the river Pravara, near the village Bhandardara. This is one of the oldest existing dams in the state. The construction of this dam was started in 1910 and it was completed in 1926. The catchment area of dam is 12200 Sq.kms. The live storage is of water is 11.039 TMC and dead storage is 3 TMC. The depth of the dam is 270 feet. The base width of the dam wall is 260.10 feet. The main source of water for dam is streams, river s, fountains etc. The annual rainfall up to Ghatghar is 5460 mm. and on dam 3225 mm. The total irrigated area under the dam is 23077 hectors. Algae are the important part of the food web and provide shelter to other organisms. Thus they are the major pa rt in aquatic ecosystems. They play a crucial role in the aquatic ecosystem to absorb nutrients, toxic material, heavy metals and convert it into simplest form. The phytoplankton diversity in relation to the abiotic factors of a pond at Bagalpur, India was recorded 1 . The primary producers are the base of aquatic ecosystem. Therefore the productivity of the aquatic ecosystem is based on primary producers 2 . They occur in the lentic (standing water) as well as lotic water (running water), t he diatoms flora of Marathwada, Maharashtra 3 . In the present study diatoms were correlated with these references. The seasonal phytoplanktonic diversity of Kitham l ake, Agra 4 . Biological assessment is a useful alternative for assessing the ecological quality of aquatic ecosys tems since biological communities integrate the environmental effects of water chemistry, in addition to the physical and geomorphological characteristics of Rivers and lakes 5 . Phytoplankton encountered in the water body reflects the average ecological con dition and therefore, they may be used as indicator of water quality 6 . Significant positive correlations were noticed between surface water temperature and total plankton density at all stations in the Lake except at station - 4A. Total plankton density at station 4A showed a negative correlation with water temperature. Many reports on positive correlations between density of specific groups of phytoplankton and temperature are available 7,8 . However, the negative correlations of phytoplankton density observe d at station - 4A might be due to the unidentified interactions of certain factors operating in the region. Correlation analysis of density of different algal classes and temperature at different stations revealed that the relationship of such groups with te mperature was positive at certain stations but negative at certain other stations. It may be noted that at station - 4A, where Bacillariophyta was the dominant group, it showed a positive correlation with temperature but negative correlations of Cyanophyceae and Bacillariophyceae with temperature. According to various classes as well as individual species of algae have minimum, optimum and maximum temperatures for growth 9 . The author has reported optimum temperature for Diatoms as 18 - 30 0 C, for Green - algae 30 - 35 0 C and for Blue - green algae 35 - 40 0 C. Since the surface water temperature fluctuations in Periyar Lake varied from 24 to 29 0 C, temperature regime in the Lake is not very favourable for Cyanophycean and Chlorophycean growth . Material and Methods Phytoplan ktonic samples were collected from surface water samples of identified station of this lake at a depth of more than one foot using polythene cans of two liter capacity. Algal material was preserved in 3 - 4% formalin at the site of collection. Isolated sampl es were washed with 2 - 3% Acetic acid solution to remove organic impurities along with visible particles. Pure cultures were obtained using serial dilution method and obtained dilution was filtered and introduced in Research Journal of Animal, Veterinary and Fishery Sciences ___ _ _ _______________________________ ___ ISSN 2320 – 6535 Vol. 1 ( 2 ), 7 - 8 , March (201 3 ) Res. J. Animal , Veterinary & Fishery Sci . International Science Congress Association 8 small growth containers and kept on ligh t table to grow and observed using microscope. The algal forms were further identified by staining with 1% Iodine solution and examined under Research microscope with Micro Image Projection System (MIPS) and identified with available literature 10 . The iden tification of phytoplankton was done with the help of standard books and monographs 11 - 13 . T he study of phytoplankton in 1litre samples were collected from the surface water at all the stations in clean plastic jars and were fixed immediately using Lugol’s iodine solution (1ml: 10ml) 14 . Algal studies are very essential for the assessment and abatement of water pollution. Phytoplankton and its seasonal successions can be a better predictor of long term environmental changes in the aquatic systems than the m ore usual descriptors of biomass and productivity indices 15 . Results and Discussion The present investigatory study reveals in the lake have a collection of so many algal genera of different class. It was reported that genus Anabaena, Nostoc, Spirulina, Phormidium, Merismopedia that belongs to the class Cyanophyta with 5 number of species. Genus Oedogonium, Mougeotia, Chlorela, Cosmarium, Hydrodictyon Pediastrum, Pithophora Volvox, Eudorina Spirogyra, Scenedesmus, Coleochaete, Staurastrum, Planktospaeria, Quadrigula, Crucigenia , that belongs to the class Chlorophyta with 22 number of species. Genus Navicula, Pinularia, Amphiplura, Stauroneis, Epithemia, Hantzschia, Gyrosigma, Tabellariafenestrata, Melosira, Synedra, Anphora, that belong to class Bacillario phyta with 14 numbers of species. Genus Chlorobotrys is belongs to class Xanthophyta with single number of species. The pond also shows the presence of Algal blooms and various algal forms. These algal forms belong to the class Chlorophyta. Conclusion The study has revealed that, the pond had a diversified algal flora in which Chlorophycean members were dominant followed by Bacillariophyceae, Cyanophyceae, and Xanthophyceae. Algal studies are very essential for the assessment and abatement of water polluti on. Phytoplankton and its seasonal successions can be a better predictor of long term environmental changes in the aquatic systems than the more usual descriptors of biomass and productivity indices. Biodiversity of all systems forms a vital resource that needs to be carefully conserved for our future generation, and planktons are especially important as they form the most sensitive component of the ecosystem and signal environment disturbances. However, biodiversity in aquatic ecosystems remains neglected . Acknowledgements Authors are thankful to the Chairmen, Secretary K.T.S.P. Mandal ’s , Principal, Head, Department of Zoology, Hutatma Rajguru Mahavidyalaya, Rajgurunagar and the teaching and non teaching staff providing the necessary facilities to complet e this research work. 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