, Volume 57, Issue 3, pp 267–273

Trophic status of Iowa Lakes in relation to origin and glacial geology


  • John R. Jones
    • Department of Animal EcologyIowa State University
  • Roger W. Bachmann
    • Department of Animal EcologyIowa State University

DOI: 10.1007/BF00014580

Cite this article as:
Jones, J.R. & Bachmann, R.W. Hydrobiologia (1978) 57: 267. doi:10.1007/BF00014580


Natural and artificial lakes in the most recently glaciated portions of Iowa have significantly greater total ion concentrations than those in other areas of the state. A similar distribution was found for total nitrogen concentrations. Lake origin seems of greater importance than location in determining trophic state. As a group, the artificial lakes have lower concentrations of total phosphorus, total chlorophyll, and greater Secchi disk transparency than do the natural lakes. This seems related to differences in the dynamics of the phosphorus cycles in these lake types.


EutrophicationIowa lakesphosphoruswater chemistry
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© Dr. W. Junk b. v. Publishers 1978