This study assessed conditions in two streams in Pennsylvania with extensive riparian grazing, and in a third stream with no riparian grazing, Spring Creek. Median daily discharge and temperatures during summer and winter and were significantly different among streams. Annual sediment yields were 113, 255, and 273 in Spring Creek, Cedar Run, and Slab Cabin Run, respectively. Substrate permeability of potential spawning sites for brown trout (Salmo trutta) and densities of benthic macroinvertebrates were much higher in Spring Creek than in Cedar Run and Slab Cabin Run. Although there were marked differences among streams with and without riparian grazing, other watershed attributes could have influence on these streams.
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