Region
- Alaska 2 results
- Arctic Coast (Alaska) 2 results
- Bering Sea 2 results
- Kuskokwim River Watershed (Alaska) 2 results
- Yukon River Watershed (Yukon and Alaska) 2 results
- Yukon-Kuskokwim Delta (Alaska) 2 results
- Australia 1 results
- British Columbia 1 results
- California 1 results
- Fraser River 1 results
- Fraser River (B.C.) 1 results
- Klamath River Watershed (Or. and Calif.) 1 results
- Sacramento-San Joaquin Estuary 1 results
- Sacramento-San Joaquin Estuary (Calif.) 1 results