NDLI: Cumulative Effects of Riparian Disturbances along High Desert Trout Streams of the John Day Basin, Oregon

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Cumulative Effects of Riparian Disturbances along High Desert Trout Streams of the John Day Basin, Oregon

Content Provider	Semantic Scholar
Author	Li, Hiram W. Lamberti, Gary A. Pearsons, Todd N. Tait, Cynthia K. Li, Judith L. Buckhouse, John C.
Copyright Year	1994
Abstract	Abstract In a study of cumulative effects of riparian disturbance by grazing on the trophic structure of high desert trout streams, watersheds with greater riparian canopy had higher standing crops of rainbow trout Oncorhynchus mykiss, lower daily maximum temperatures (range, 16–23°C compared with 26–31°C), and perennial flow. Watershed aspect influenced the response of trophic structure to grazing influences. Standing crops of rainbow trout were negatively correlated with solar radiation and maximum temperature in watersheds flowing northward. A different relationship was observed for a set of watersheds with a southern aspect, perhaps due to the presence of spring seeps and stream desiccation in the heavily grazed stream. Trout biomass was negatively correlated with solar radiation, whereas positive relationships were found for discharge and depth. Algal biomass was positively correlated with solar insolation (r = 0.9 1), total invertebrate biomass (r = 0.77), and herbivorous invertebrate biomass (r = 0...
Starting Page	627
Ending Page	640
Page Count	14
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://ir.library.oregonstate.edu/downloads/d504rk83c
Alternate Webpage(s)	https://doi.org/10.1577/1548-8659%281994%29123%3C0627%3ACEORDA%3E2.3.CO%3B2
Volume Number	123
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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