Record Display for the EPA National Library Catalog


Main Title Effects of fluctuating, sublethal applications of heavy metal solutions upon the gill ventilatory response of bluegills (Lepomis macrochirus) /
Author Cairns, John, ; Thompson, Kenneth W. ; Hendricks, Albert C.
Other Authors
Author Title of a Work
Thompson, Kenneth W.
Hendricks, Albert C.
CORP Author Virginia Polytechnic Inst. and State Univ., Blacksburg.;Environmental Research Lab.-Duluth, Cincinnati, OH. Newton Fish Toxicology Station.
Publisher U.S. Environmental Protection Agency, Research and Development, Environmental Research Laboratory ; Center for Environmental Research Information [distributor],
Year Published 1981
Report Number EPA-600/3-81-003; EPA-R-805274-010; PB81150997
Stock Number PB81-150997
OCLC Number 40768678
Subjects Heavy metals--Environmental aspects ; Bluegill--Physiology ; Fishes--Effect of water pollution--Data processing ; Indicators (Biology)
Additional Subjects Fishes ; Metals ; Toxicology ; Ventilation ; Responses ; Electrical properties ; Analysis of variance ; Detection ; Bluegills ; Lepomis macrochirus ; Heavy metals ; Gills ; Toxic substances
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKCD  EPA-600/3-81-003 CEMM/GEMMD Library/Gulf Breeze,FL 07/10/2018
ELDD  EPA-600/3-81-003 CCTE/GLTED Library/Duluth,MN 05/30/2012
NTIS  PB81-150997 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 90 pages : illustrations ; 28 cm
The ventilatory response of the bluegill to fluctuating, sublethal amounts of heavy metals was investigated. Non-contact submerged, stainless steel electrodes were used to detect the weak electrical potentials that are produced when fish ventilate their gills. These signals were amplified using high-gain amplifiers which were interfaced with a minicomputer. These ventilatory data were accumulated continuously, and both the ventilatory rates and average signal amplitude were recorded on electronic tape for later analysis. The response to these toxic solutions was an increase in rate as well as a decrease in signal amplitude. The latter response was shown to be a real response of the fish and not due to changes in the electrical properties of the water when toxicant was added. Due to the extreme smoothing of the data, the analysis of variance was unable to detect any differences between the toxicant application patterns. It was significant to note, however, that the fish were capable of reacting to each subsequent pulse of toxicant in a similar manner.
Caption title. At head of title: Project summary. "January 1981." "EPA 600/3-81-003."