Effects of TFM and Bayer 73 on in vivo oxygen consumption of the aquatic midge Chironomus tentans
Transactions of the American Fisheries Society
By: J.A. Kawatski, V. K. Dawson, and J.L. Reuvers
Links
- More information: Publisher Index Page (html)
- Download citation as: RIS | Dublin Core
Abstract
Exposure of fourth instar larvae of Chironomus tentans to 2.0-8.0 mg/liter of TFM (3-trifluormethyl-4-nitrophenol) for 6 hr at 22 A? 0.5 C in soft water resulted in a significantly increased rate of larval oxygen consumption compared to that of control larvae, as measured with the Warburg respirometer. Maximum stimulation of oxygen consumption occurred with 8.0 mg/liter of TFM, and 1.0 mg/liter of TFM had no measurable effect on basal respiration. When hardness of exposure water was progressively increased, the effect of TFM on oxygen consumption was diminished.
Bayer 73 (5,2'-dichloro-4'-nitrosalicylanilide) stimulated oxygen consumption at 0.75 and 1.0 mg/liter, had no significant effect at concentrations less that 0.75 mg/liter, and inhibited oxygen consumption at concentrations of 1.20 mg/liter or greater.
Mixtures of TFM and Bayer 73, in the ratio of 98:2, had no greater effect on oxygen consumption than TFM alone.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Effects of TFM and Bayer 73 on in vivo oxygen consumption of the aquatic midge Chironomus tentans |
| Series title | Transactions of the American Fisheries Society |
| Volume | 103 |
| Issue | 3 |
| Year Published | 1974 |
| Language | English |
| Contributing office(s) | Upper Midwest Environmental Sciences Center |
| Description | pp. 551-556 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Transactions of the American Fisheries Society |
| First page | 551 |
| Last page | 556 |
| Google Analytic Metrics | Metrics page |