, Volume 75, Issue 1, pp 73-79

Comparison of clay tile, sterilized rock, and natural substrate diatom communities in a small stream in Southeastern Michigan, USA

  • Marc L. TuchmanAffiliated withGreat Lakes Research Division, University of Michigan
  • , R. Jan StevensonAffiliated withGreat Lakes Research Division, University of Michigan

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Periphytic diatom communities on clay tile and sterilized rock substrates were compared with those on natural substrates. Clay tiles yielded diatom communities with the least variability between replicate samples, and the greatest similarity to the natural substrate assemblage. The advantages of utilizing introduced substrate communities and problems encountered with their simulation of the natural substrate community are discussed.


diatoms periphyton introduced substrates colonization