Urban streams, like Strawberry Creek, are inevitably exposed to a certain degree of unnatural degradation. In order to determine cumulative human impacts on Berkeley’s freshwater resources, it is necessary to have some form of information feedback from the natural systems through and around which Strawberry Creek flows. Consistent and thorough biological monitoring can serve as a useful feedback mechanism. Biological monitoring allows one to compare the habitat (e.g., physical structure, flow regime), water quality, and biological measures of a potentially impacted site with those of a...