Title: Investigations in fish control
Subjects: Piscicides, Toxaphene, Environmental aspects, Fishes, Effect of pesticides on, Fish populations, Thinning, Control, Plankton, Aquatic organisms, Yellow perch, Growth, Sea lamprey, Sculpins, Salmon, Predators of, Petromyzon marinus
Places: North Dakota, Michigan, East Bay Lake, Alaska, Big Kitoi Creek