Microbial and chemical properties of log ponds along the Oregon Coast.

Iwan Ho; Ching Yan Li

doi:10.2737/PNW-RN-467

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Microbial and chemical properties of log ponds along the Oregon Coast.

Informally Refereed

Authors:

Iwan Ho, Ching Yan Li

Year:

1987

Type:

Research Note

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RN-467

Source:

Res. Note. PNW-RN-467. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p

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Abstract

The microbial and chemical properties of log ponds along the Oregon coast were investigated. The log ponds were highly eutrophic, containing high concentrations of ammonium and nitrate nitrogen, phosphate, and organic compounds. Because of large microbial populations, the biochemical oxygen demand was high and dissolved oxygen was low. Bacterial species in log ponds were relatively similar to those found in streams with rich nutrient content. Most of the fungi in log ponds were lymabiont and lymaphilous. Some fungal species reportedly associated with fish disease were present in log ponds and in ponds without log storage as well.

Keywords

Biochemical oxygen demand, bacteria, fungi, residue

Citation

Ho, Iwan; Li, Ching Yan. 1987. Microbial and chemical properties of log ponds along the Oregon Coast. Res. Note. PNW-RN-467. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p