Effects on a Trout Stream of Sediment from Agricultural Practices
- 1 October 1967
- journal article
- research article
- Published by JSTOR in The Journal of Wildlife Management
- Vol. 31 (4) , 805-+
- https://doi.org/10.2307/3797988
Abstract
The effects of sedimentation rates, stream discharge and water temperature were studied in Bluewater Creek, Montana. Trout of all ages were abundant where sediment concentrations or loads were low (range in daily load 0.2-11 tons) and stream discharge stable (range in mean daily discharge 10.0-12.0 cfs). Few trout were found where sediment concentrations or loads were high (range in daily load 2-1800 tons) and discharge erratci (range in mean daily discharge 4-485 cfs). Water temperatures were higher than desirable for trout (above 80 F for more than 3 hr. on summer days) in areas of the stream influenced by irrigation surface return flow. The best survival of trout eggs (97% survival) was found where stream discharge was stable and sediment concentrations were low.This publication has 0 references indexed in Scilit: