https://caltrout.org/explore-fish/threat/mining/https://caltrout.org/explore-fish/threat/hatcheries/https://caltrout.org/explore-fish/threat/estuary-alteration/https://caltrout.org/explore-fish/threat/harvest/https://caltrout.org/explore-fish/threat/logging/https://caltrout.org/explore-fish/threat/alien-species/https://caltrout.org/explore-fish/threat/fire/https://caltrout.org/explore-fish/threat/agriculture/https://caltrout.org/explore-fish/threat/major-dams/https://caltrout.org/explore-fish/threat/residential-development/https://caltrout.org/explore-fish/threat/grazing/https://caltrout.org/explore-fish/threat/recreation/https://caltrout.org/explore-fish/threat/urbanization/