Lake Erie: pollution abatement, then what?
D000818:Animals; D000845:Annelida; D003445:Crustacea; D000458:Cyanobacteria; D003530:Cyprinidae; D004463:Ecology; D005399:Fishes; D008386:Marine Biology; D008824:Michigan; D009518:New York; D009820:Ohio; D009864:Ontario; D010933:Plankton; D012722:Sewage; D012758:Shellfish; D014876:Water Pollution / Q000517:prevention & control*
D012722:Sewage