| 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. |
| Genre: | Article |
| ProdID: | 1003219 |
| Citation Author: | Kawatski, J. A.; Dawson, V. K.; Reuvers, J. L. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 556 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Transactions of the American Fisheries Society |
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| Citation Number Of Pages: | 6 |
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| Citation Phsyical Description: | pp. 551-556 |
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| Citation Search Results Text: | Effects of TFM and Bayer 73 on in vivo oxygen consumption of the aquatic midge Chironomus tentans; 1974; Article; Journal; Transactions of the American Fisheries Society; Kawatski, J. A.; Dawson, V. K.; Reuvers, J. L. |
| Citation Start Page: | 551 |
| Citation Volume: | 103 |
| Citation Year: | 1974 |
| Type: | citation/reference |
| Text: | Effects of TFM and Bayer 73 on in vivo oxygen consumption of the aquatic midge Chironomus tentans; 1974; Article; Journal; Transactions of the American Fisheries Society; Kawatski, J. A.; Dawson, V. K.; Reuvers, J. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (INDEX PAGE): | http://afsjournals.org/doi/abs/10.1577/1548-8659%281974%29103%3C551%3AEOTABO%3E2.0.CO%3B2 |
| Date Other: | Tue, 1 Jan 1974 00:00 -0600 |
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