||Effects of Enrichment on Lake Superior Periphyton.
Nelso, Robert R. ;
Odlau, Theron O. ;
Krogsta, Blanchard O. ;
Ruschmeye, Orlando R. ;
Olso, Theodore A. ;
||Minnesota Univ., Minneapolis. Water Resources Research Center.
||WRRC-Bull-59; DI-14-31-00001-3095; OWRR-B-020-MINN; 13011,; B-020-MINN(3)
( Lake Superior ;
( Plant growth ;
Inorganic phosphates ;
Inorganic nitrates ;
Primary biological productivity ;
Water pollution ;
Indicator species ;
Water pollution effects(Plants)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||This Bulletin is concerned with the possible changes which would take place in Lake Superior periphyton if pollution or enriching substances were added to the lake water. A means for assessing the possible changes taking place is described to assist water managers in monitoring the water quality of Lake Superior. To this end, two natural rock basins were constructed at the lakeside along the north shore at Castle Danger, Minnesota for the purpose of exposing naturally grown and regrowth periphyton to higher-than-normal levels of phosphate and nitrate. At weekly intervals, samples were collected and productivity was measured by enumeration of organisms, chlorophyll analysis, and weight, dry and organic. (Modified author abstract)
|PUB Date Free Form
||8H; 6F; 68D; 64H
||PC A09/MF A01