Physiological and biochemical aspects of ozone toxicity to rainbow trout (Salmo gairdneri)
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
An acute toxicity curve for dissolved ozone (O3) in soft water at 10 °C, using 10–13-cm rainbow trout (Salmo gairdneri) as the test species was calculated. The 96-h LC50 (95%, confidence interval) was 9.3 (8.1–10.6) μg/L. The lethal threshold level was about 8 μg/L mandating that a conservative margin of safety be used if ozone is employed as a fish disease control agent. Death apparently results from massive destruction of the gill lamellar epithelium together with a severe hydromineral imbalance. In partial chronic (3-mo) testing, 2 μg/L caused no significant biological damage while 5 μg/L caused some gill pathological changes and reduced feeding behavior. Accordingly, 2 μg/L is suggested as a provisional maximum safe exposure level, pending completion of life cycle studies. Thus, if ozone-treated water is discharged into the environment, dissolved O3 should be reduced to at least the 2 μg/L level to minimize adverse impacts on salmonids in receiving waters.
Suggested Citation
Wedemeyer, G.A., Nelson, N.C., Yasutake, W.T., 1979, Physiological and biochemical aspects of ozone toxicity to rainbow trout (Salmo gairdneri): Journal of the Fisheries Research Board of Canada, v. 36, no. 6, p. 605-614, https://doi.org/10.1139/f79-088.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Physiological and biochemical aspects of ozone toxicity to rainbow trout (Salmo gairdneri) |
| Series title | Journal of the Fisheries Research Board of Canada |
| DOI | 10.1139/f79-088 |
| Volume | 36 |
| Issue | 6 |
| Year Published | 1979 |
| Language | English |
| Publisher | NRC Research Press |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 10 p. |
| First page | 605 |
| Last page | 614 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |