214
T.E. Maloney, W.E. Miller and N.L. Blind
SUMMARY
The use of algal assays to assist in the solution of practical eutrophication is illustrated
by the studies described herein. We have demonstrated their use in assessing the effects of
changes in waste treatment processes on receiving waters, in identifying algal
growth-limiting nutrients, and in assessing receiving waters to determine their nutrient
status and sensitivity to change. We feel that algal assays will also be a valuable asset in
dealing with other practical problems such as evaluating materials and products to
determine their potential effects on algal growth in receiving waters.
The algal assay cannot, of course, be used by itself in evaluating and solving
eutrophication problems. If combined, however, with good chemical and physical
analyses as well as thorough limnological investigations, it can be an extremely useful
procedure.
ACKNOWLEDGEMENTS
We wish to express our sincere appreciation to Mr. Kenneth Mosbaugh and the staff of
the Water Quality Standards Branch, Region X, Environmental Protection Agency for
their assistance and time spent in collecting the water samples. The assistance of
Stephanie R. Vreeland in conducting the laboratory algal assays is also appreciated.
REFERENCES
1 Joint Industry/Government Task Force on Eutrophication, Provisional Algal Assay Procedure
(February, 1969).
2 Environmental Protection Agency, Algal Assay Procedure: Bottle Test (August 1971).
3 POWERS, C.F. and BRICE, R.M., The Shagawa Lake, Minnesota Eutrophication Research Project.
In Proceedings of the Eutrophication-Biostimulation Workshop. Edited by E.J. Middlebrooks et al.
University of California, Berkeley and Pacific Northwest Water Laboratory, Corvallis, Oregon
(1969).
T.E. Maloney, W.E. Miller and N.L. Blind
SUMMARY
The use of algal assays to assist in the solution of practical eutrophication is illustrated
by the studies described herein. We have demonstrated their use in assessing the effects of
changes in waste treatment processes on receiving waters, in identifying algal
growth-limiting nutrients, and in assessing receiving waters to determine their nutrient
status and sensitivity to change. We feel that algal assays will also be a valuable asset in
dealing with other practical problems such as evaluating materials and products to
determine their potential effects on algal growth in receiving waters.
The algal assay cannot, of course, be used by itself in evaluating and solving
eutrophication problems. If combined, however, with good chemical and physical
analyses as well as thorough limnological investigations, it can be an extremely useful
procedure.
ACKNOWLEDGEMENTS
We wish to express our sincere appreciation to Mr. Kenneth Mosbaugh and the staff of
the Water Quality Standards Branch, Region X, Environmental Protection Agency for
their assistance and time spent in collecting the water samples. The assistance of
Stephanie R. Vreeland in conducting the laboratory algal assays is also appreciated.
REFERENCES
1 Joint Industry/Government Task Force on Eutrophication, Provisional Algal Assay Procedure
(February, 1969).
2 Environmental Protection Agency, Algal Assay Procedure: Bottle Test (August 1971).
3 POWERS, C.F. and BRICE, R.M., The Shagawa Lake, Minnesota Eutrophication Research Project.
In Proceedings of the Eutrophication-Biostimulation Workshop. Edited by E.J. Middlebrooks et al.
University of California, Berkeley and Pacific Northwest Water Laboratory, Corvallis, Oregon
(1969).