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OLS Field Name OLS Field Data
Main Title Effect of Elevated Water Temperature on Insect Emergence in Outdoor Experimental Channels.
Author Nordlie, Kathleen J. ; Arthur, John W. ;
CORP Author Environmental Research Lab.-Duluth, Monticello, MN. Monticello Ecological Research Station.
Year Published 1981
Report Number EPA-600/J-81-210;
Stock Number PB81-211690
Additional Subjects Aquatic biology ; Insects ; Mississippi River ; Entomology ; Thermal gradients ; Diptera ; Oxygen ; Dissolved gases ; Temperature ; Ecology ; Channels(Waterways) ; Field tests ; Reprints ; Chironomidae ; Water pollution effects(Animals) ; Emergence ; NTISEPAORD
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB81-211690 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 13p
Abstract
Emergence of adult aquatic insects was evaluated weekly with plexiglass traps positioned in two outdoor experimental channels from April through August 1977. One channel was seasonal Mississippi River water temperature and the other maintained at 10C above. Maximum water temperatures reached 31.0C in the ambient and 40.8C in the heated channel. Chironomids comprised 84% of the insects collected in both channels. The temperature in the heated channel (10C above ambient) advanced the emergence of two Chironominae, one Orthocladiinae, one Ceratopogonidae and one Zygopteran species by one to four weeks.