| Title | Alsea watershed study: effects of logging on the aquatic resources of three headwater streams of the Alsea River, Oregon: Part I: Biological Studies |
| Publication Type | Report |
| Year of Publication | 1975 |
| Authors | Moring, John R., Richard L. Lantz, and Oregon. Department of Fish and Wildlife. Research Section |
| Secondary Title | Fishery Research Report |
| Volume | no. 9 pt. 1 |
| Institution | Oregon Department of Fish and Wildlife |
| City | Corvallis, Or. |
| Call Number | OSU Libraries: Valley SH222 .O7 A32 no. 9 pt I, Guin SH222 .O7 A32 no.9 pt. I, also Digital Open Access |
| Keywords | Alsea River Basin, Alsea Watershed Study, Coho salmon = Oncorhynchus kisutch, cutthroat trout = Oncorhynchus clarki, Deer Creek, Drift Creek, Flynn Creek, human impacts, logging, natural resource management, Needle Branch, Reticulate sculpin = Cottus perplexus, sediment data, terrestrial vegetation, water quality, water temperature, Western brook lamprey = Lampetra richardsoni |
| Notes | Three tributaries of Drift Creek, tributary to the Alsea River, Oregon were monitored between 1959-1973: Needle Branch, Deer Creek, Flynn Creek. Needle Branch was clearcut with no buffer strips. Deer Creek was clearcut with buffer strips. Flynn Creek was not logged. Cutthroat trout populations "severely depressed" after logging and stayed low during 8-year post-logging period. Timing of cutthroat downstream migration altered for two years after debris cleared and slash burned. Coho salmon less affected, but average weight and condition were lowered, as was subsequent fecundity. "Coho biomass and net production rates increased in the streams of the two logged watersheds following logging." Logging "amost completely destroyed" the two youngest year classes of reticulate sculpins, and adult western brook lampreys declined in Needle Branch after logging. |
| URL | https://ir.library.oregonstate.edu/concern/technical_reports/765372384 |
| Label | 30472 |
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