. Effects of the June, 1975 Mike Horse mine tailings dam failure on water quality and aquatic resources of the Upper Blackfoot River, Montana . '% s ^ DEZP^JlTTIEaifVilQt^- â /.^.-. V.,' RsH Anna CJiame Box 1063 P^h 91 1 Qo/c Glendive, Mont, reb. 21,1976 59330 Dear Liter, I recently discovered a paper that will help you deciede thP 5? "^^croinvertebrate population changes you found in the Blackfoot River afterthe washout are significant Cairns(l967) states that "For biologically oriented abSfS 7. T" °P!^^^i°"^l definition of optiL? il the ability to support an aquatic com
. Effects of the June, 1975 Mike Horse mine tailings dam failure on water quality and aquatic resources of the Upper Blackfoot River, Montana . '% s ^ DEZP^JlTTIEaifVilQt^- â /.^.-. V.,' RsH Anna CJiame Box 1063 P^h 91 1 Qo/c Glendive, Mont, reb. 21,1976 59330 Dear Liter, I recently discovered a paper that will help you deciede thP 5? "^^croinvertebrate population changes you found in the Blackfoot River afterthe washout are significant Cairns(l967) states that "For biologically oriented abSfS 7. T" °P!^^^i°"^l definition of optiL? il the ability to support an aquatic community in a pattern whioh fst?.??^'^^''^-"^"^" ^^^" 2° P^^; '^^^- ^^^ "'" °^ ^^^^^ '^"^lity control techniques Bull !3???!f3':^^"' ^'^ ^^"^^^" ecosystems. Water Res!^ also see : Cairns J. and 1969. Cluster analysis of Potomac River survey stations based on Protozoan presence anbencs data. Hydrobiologia 34'iSJ-43l 'L\\l''o\S:?."|,'di^e^s'itv''cL\\''^'i?^.^ °" ^^ ^° 2^^ °^ but deviations over I^^Li?^''^^^^'^ normal and healthy examine yoi?^?e°;i^hoTt S:ers1iranTfSd^^?he^SIgL°s? '^'^ value and compare it with the post-washout diversi?J I hope this is of some help. Sincerely, Robert L. Newell A-52
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