Subject
- Fish hatcheries -- Oregon2
- Fish-culture -- Economic aspects -- Oregon2
- Forest management -- Environmental aspects -- Oregon2
- Albacore -- Health aspects1
- Albacore -- Mercury content1
- Canned tuna -- Health aspects1
- Chemical carcinogenesis1
- Crayfish -- Effect of metals on -- Oregon -- Willamette River1
- Crayfish -- Toxicology -- Oregon -- North Portland Harbor1
- Crayfish -- Toxicology -- Oregon -- Willamette River1
- Ecosystem management -- Government policy -- Oregon1
- Fish as food -- Contamination1
- Fish as food -- Contamination -- Oregon -- Willamette River1
- Fish as food -- Health aspects1
- Fish canneries -- Environmental aspects -- Oregon -- Yaquina Bay1
- Fish canneries -- Waste disposal -- Oregon -- Yaquina Bay1
- Fish communities -- Ohio -- Wayne National Forest1
- Fish culture -- Oregon -- Willamette River Valley -- Water-supply1
- Fish habitat improvement -- Government policy -- Oregon1
- Fish hatcheries -- Economic aspects -- Oregon1