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Water, Air, and Soil Pollution

, Volume 179, Issue 1–4, pp 391–395 | Cite as

Photosynthetically Mediated Zn Removal from the Water Column in High Ore Creek, Montana

  • Jeffrey M. MorrisEmail author
  • Joseph S. Meyer
Article

Abstract

We collected cobbles covered in biofilm from High Ore Creek, Montana, placed them in 12 transparent PVC plastic chambers, and exposed the chambers to four treatments: Sunlight, Sunlight-occluded, DCMU (photosynthesis inhibited), and Formalin. Total aqueous zinc (Zn) concentrations in the Sunlight treatment decreased during the 4-h experiment and were significantly lower (P ≤ 0.05) than in the other three treatments, in which the total aqueous Zn concentrations did not decrease significantly. Therefore, we believe photosynthesis in the biofilm played a role in causing total aqueous Zn concentrations in the Sunlight treatment to decrease, and we believe a similar process contributes to diel Zn cycling in High Ore Creek and some other metals-contaminated streams.

Keywords

biofilm diel cycling DCMU diuron formalin photosynthesis 

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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.Department of Zoology and PhysiologyUniversity of WyomingLaramieUSA
  2. 2.Western Research InstituteLaramieUSA

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