Late summer and fall use of stream margins by young-of year brown trout in a high-elevation stream
Journal of Freshwater Ecology
By: W. J. La Voie IV and W.A. Hubert
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Abstract
We determined the relative abundance of young-of-year (YOY) brown trout (Salmo trutta) from late summer to fall during day and night in stream margin habitats of Douglas Creek, Wyoming. No significant differences in relative abundance were observed from August 14 through October 26. Few YOY brown trout were observed during the day over the entire sampling period, but significantly greater numbers were seen at night. Within stream margins, YOY brown trout of 36-75 mm total length primarily resided in concealment cover among interstices of cobbie during the day and emerged at night. Because no significant change in relative abundance was observed throughout the study period, we conclude that a shift to winter habitat did not occur up until three days prior to ice formation when the diurnal range in water temperature was 2.5-7.5??C.
Suggested Citation
La Voie, W.J., Hubert, W., 1997, Late summer and fall use of stream margins by young-of year brown trout in a high-elevation stream: Journal of Freshwater Ecology, v. 12, no. 2, p. 291-302.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Late summer and fall use of stream margins by young-of year brown trout in a high-elevation stream |
| Series title | Journal of Freshwater Ecology |
| Volume | 12 |
| Issue | 2 |
| Year Published | 1997 |
| Language | English |
| Description | 12 p. |
| First page | 291 |
| Last page | 302 |