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Strawberry Creek is the major focus of open space on the University of California, Berkeley (Alameda County, California, USA) campus; it provides visual amenity and variety, riparian and wildlife habitat, and educational and recreational opportunities.

Since the beginning of this century, urbanization of the catchment, channel alteration and water quality degradation combined to cause deterioration of the creek’s habitat and overall environmental quality; this was manifested by a marked absence of flora and fauna, obvious water pollution and severe erosion.

In 1987 a...

The introduction of the non-native crayfish Pacifastacus Ieniusculus in Strawberry Creek may be expected to have negative impacts on the stream ecosystem. Recent studies have shown that the declining fish population in Strawberry Creek may be due to the presence and estabishment of a large crayfish population. The purpose of this experiment is to investigate the interactions between the cray fish and the prickly sculpin (Cottus asper), a native benthic fish in Strawberry Creek. The hypothesis that crayfish prey on benthic fish was tested using eight isolation cages placed...