Occurrence, Frequency And Periodicity Of Watermolds In Three Selected Water Bodies Of Madhya Pradesh (India) With Special Reference To Some Ambient Biotic Parameters

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Investigations have been carried out on occurrence, frequency and periodicity of aquatic fungi in three selected water bodies namely Upper lake, Sarangpani lake and Chiklod reservoir of Bhopal region (Madhya Pradesh). The present study was conducted from August 2004 to July 2005. Water samples were collected every month from selected sites of three water bodies for the isolation of aquatic fungi. Similarly, physico-­­chemical parameters of water were also analyzed throughout study period. A total of twenty species of aquatic fungi belonging to eight genera were recorded from three selected water bodies. The isolated fungi are identified as Achlya americana, A. flagellata, A. klebsiana, A. prolifera, Achlya sp., Aphanomyces sp., Allomyces anomalus, Aspergillus sp., Dictyuchus monosporus, D. achlyoids, Pythium aphanidermatum, P. undulatum, P. afertile, Saprolegnia diclina, S. ferax, S. hypogyana, S. parasitica, S. monoica, Saprolegnia sp., and Leptolegnia sp. The occurrence, frequency and periodicity of fungi were also recorded. The maximum number of fungi was recorded during winter months while the minimum in summer months. Seasonal variations , in the abundance of these fungi have been observed. Although, the variations in their abundance depend on several physio-chemical parameters of water but the temperature is found to be the governing factor.

Watermolds; occurrence; frequency; periodicity