Subject
- Caspian tern -- Food -- Columbia River Estuary (Or. and Wash.)3
- Aluminum -- Toxicology2
- Caspian tern -- Ecology -- Columbia River Estuary (Or. and Wash.)2
- Coho salmon2
- Double-crested cormorant -- Ecology -- Columbia River Estuary (Or. and Wash.)2
- Double-crested cormorant -- Food -- Columbia River Estuary (Or. and Wash.)2
- Fishes -- Physiology2
- Rainbow trout -- Diseases2
- Rainbow trout -- Effect of water quality on2
- Animal population genetics -- Pacific Coast (North America)1
- Anoxemia1
- Benzanthracenes -- Carcinogenicity1
- Benzopyrene -- Physiological effect1
- Benzopyrene -- Toxicity testing1
- Bighorn sheep -- Climatic factors -- Southwest, New1
- Bighorn sheep -- Conservation -- Southwest, New1
- Bighorn sheep -- Genetics -- Southwest, New1
- Bighorn sheep -- Habitat -- Southwest, New1
- Black tern -- Behavior -- Oregon1
- Black tern -- Breeding -- Oregon1