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Aquatic hyphomycetes of Wisconsin: Distribution and ecology

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Summary

1. Eighteen species in fourteen genera of aquatic hyphomycetes were found in a survey of Wisconsin streams and lakes. No clear pattern of geographic distribution was evident but several species were more frequently encountered in northern areas.

2. Moderate to swift currents were found to support the most abundant growth and greatest variety of species. Type of bottom and relative water temperature showed no detectable effect.

3. Most of the commonly-occurring species were indifferent to the oxygen regime. Nitrogen levels did not appear to affect the abundance of these fungi and no pH preference was discernible throughout the relatively narrow range that was recorded.

4. Carbon dioxide level and abundance of aquatic hyphomycetes varied inversely. Total hardness and total alkalinity appeared to have a limiting effect at concentrations in excess of 250 ppm.

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Authors and Affiliations

  1. Department of Botany, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, U.S.A.

    William J. Woelkerling & John W. Baxter

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  1. William J. Woelkerling
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  2. John W. Baxter
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Woelkerling, W.J., Baxter, J.W. Aquatic hyphomycetes of Wisconsin: Distribution and ecology. Mycopathologia et Mycologia Applicata 35, 33–36 (1968). https://doi.org/10.1007/BF02053276

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  • DOI: https://doi.org/10.1007/BF02053276

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