Fate and effects of the herbicide atrazine in flow-through wetland mesocosms
Detenbeck, NE; Hermanutz, R; Allen, K; Swift, MC
HERO ID
4629908
Reference Type
Journal Article
Year
1996
Language
English
| HERO ID | 4629908 |
|---|---|
| In Press | No |
| Year | 1996 |
| Title | Fate and effects of the herbicide atrazine in flow-through wetland mesocosms |
| Authors | Detenbeck, NE; Hermanutz, R; Allen, K; Swift, MC |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 15 |
| Issue | 6 |
| Page Numbers | 937-946 |
| Abstract | The potential long-term direct and indirect, lethal and sublethal effects of relatively low-level atrazine exposure to components of wetland communities were studied in flow-through mesocosms. Treated mesocosms were exposed to atrazine at 4 concentrations (15, 25, 50, and 75 ug per litre). Control wetlands had an average atrazine concentration of 0.69 ug per litre. The effects of atrazine exposure on periphyton biomass and production, macrophyte cover and growth rates, survival and growth of Daphnia magna, Rana pipiens, and Pimephales promelas larvae and adults were measured. The interaction between nutrient status or grazing intensity and atrazine effects was also measured. Periphyton net productivity was decreased at atrazine concentrations of 15 ug per litre and respiration was either significantly reduced by atrazine treatments (25 ug per litre) or significantly stimulated (75 ug per litre). Ceratophyllum length/weight ratios increased after 6 d exposure to 50 ug per litre atrazine. The atrazine effects on periphyton composition varied with the nitrogen:phosphorus supply ratio. Daphnia survival was depressed at atrazine concentrations of 15 ug per litre. There are 42 references. |
| Doi | 10.1002/etc.5620150616 |
| Wosid | WOS:A1996UP25100016 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | atrazine; wetlands; fate; effects; mesocosms |