期刊名称：Universal Journal of Environmental Research and Technology
电子版ISSN：2249-0256
出版年度：2016
卷号：6
期号：4
页码：171-179
出版社：Euresian Publications
摘要：Diatoms are particularly interesting as a potential indicator of water quality. Diatoms are used as bio-indicators of pollution. The study focused on present status of diatom diversity and to determine pollution level of three lakes in Kolhapur city. The study was conducted from September 2012 to February 2013. About 18 species of diatoms were identified from three lakes. Shannon-Wiener diversity index (H’), Evenness index (J’), Species Richness (SR), Index of dominance were calculated for diatom. All the three lakes showed species richness in between 1.73 - 2.27. The highest Species Richness was found in Rankala lake where as less for Rajaram lake. Also, Species Richness for all the three lakes was in between 2 to 2.5. Species Eveness Index was observed to be slightly high for Kalamba lake while it was least for Rajaram lake. The study revealed that the diversity of diatoms varies seasonally which is higher in winter season and lower during the month of September and October (post monsoon season) indicating more pollution in the lakes. The major species Aulacoseira ambigau, Navicula cryptocrphala, Synedra ulna and Cymbella turgidula.
