The Chinook salmon run in Coyote Creek may be the most viable for restoration in the South Bay, since the breeding salmon in the Guadalupe River have severely declined subsequent to installation of extensive concrete channels in the river in downtown San Jose, California by the SCVWD. These are "fall run" fish primarily adapted to the Sacramento and San Joaquin River watersheds. Since Chinook salmon spawn in early winter and juveniles migrate to the ocean in their first spring, they are able to use habitats that turn very warm or have low water quality in summer. In 2012, the Santa Clara Valley Habitat Plan reported that Chinook salmon currently spawn in Coyote Creek as well as the Guadalupe River and its tributaries.