Subject
- Chinook salmon7
- Coho salmon7
- Salmon6
- Aquaculture3
- Biotic communities -- Mathematical models3
- Rainbow trout3
- Salmonidae3
- Steelhead (Fish)3
- Bird populations -- Oregon2
- Caddisflies2
- Caspian tern -- Ecology -- Columbia River Estuary (Or. and Wash.)2
- Caspian tern -- Food -- Columbia River Estuary (Or. and Wash.)2
- Cichlids2
- Cyanides -- Toxicology2
- Double-crested cormorant -- Ecology -- Columbia River Estuary (Or. and Wash.)2
- Double-crested cormorant -- Food -- Columbia River Estuary (Or. and Wash.)2
- Fish populations2
- Fisheries -- Physiology2
- Fishes -- Geographical distribution2
- Fishes -- Growth2