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In 2014, Coho salmon were found spawning in Crystal Springs Creek in southeast Portland, where they hadn’t been seen in many decades.
Portland is home to over 300 species of native fish, birds and other wildlife that depend on clean water and healthy habitat.
Macroinvertebrates, like aquatic insects and mussels, are good indicators of watershed health. (photo courtesy U.S. Fish and Wildlife Service)
Scientists measure the fish found in Portland’s streams, like this cutthroat trout, to track changes in the populations over time.