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Factors influencing periphyton growth in agricultural streams of central Illinois

Seven sampling stations were established to examine the hypothesis that instream primary production was not macronutrient limited. Nutrient-diffusing substrata of sand/agar mixtures with one of 6 experimental treatments were used. After 5 and 9 days the top 3 mm of periphyton colonized substratum we...

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Bibliographic Details
Published in:Hydrobiologia 1989-04, Vol.174 (2), p.89-97
Main Authors: MUNN, M. D, OSBORNE, L. L, WILEY, M. J
Format: Article
Language:English
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Summary:Seven sampling stations were established to examine the hypothesis that instream primary production was not macronutrient limited. Nutrient-diffusing substrata of sand/agar mixtures with one of 6 experimental treatments were used. After 5 and 9 days the top 3 mm of periphyton colonized substratum were removed and analysed for chlorophyll-a. Periphyton accrual rates were negatively correlated with drainage area. Results from the multiple regression model showed that water temperature and turbidity accounted for the majority of variation in chlorophyll-a accrual coefficients.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00014057