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Diversity of aquatic hyphomycetes in the aquatic ecosystems of the Western Ghats of India

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Abstract

Relationships between physico-chemical factors of waters, riparian vegetation, altitude and species richness of the hyphomycete communities in six rivers and a sulfur spring in the Western Ghats of Karnataka were analysed statistically. Linear regression and correlation between log fungal species and riparian vegetation was highly significant. The similarity in the fungal diversity between different rivers and the sulphur spring was evaluated by Sorensen's index. Generally, the indices of similarity in the mycoflora between the streams were high. However, in the streams of Lakya, Bhadra, Ranganathittu bird sanctuary and the sulfur spring the indices of similarity were low compared with the rest of the water systems. The low pH, low oxygen concentration, hardness, high iron, high temperature and sulfide contents of the waters of these streams are thought to be the reasons for the differences in these streams. Anguillospora longissima, Helicomyces roseus, Lunulospora curvula, Triscelophorus monosporus and Wiesneriomyces laurinus were found to be the most abundant species.

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Authors and Affiliations

  1. Department of Biosciences, Mangalore University, Mangalagangotri, 574 199, Karnataka, India

    M. Rajashekhar

  2. Department of Applied BotanyMangalore, University, Mangalagangotri, 574 199, Karnataka, India

    K. M. Kaveriappa

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  1. M. Rajashekhar
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  2. K. M. Kaveriappa
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Rajashekhar, M., Kaveriappa, K.M. Diversity of aquatic hyphomycetes in the aquatic ecosystems of the Western Ghats of India. Hydrobiologia 501, 167–177 (2003). https://doi.org/10.1023/A:1026239917232

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