Michigan Conservation

Michigan Conservation

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Fisheries biologists find that electricity is more effective than as The Electric a€œ Shockera€ and Its Use in Mich Installing a net a€œfenceaquot; ... research workers interested in streaminhabiting game fish have sought to perfect methods for estimating popula: tions of stream fish. ... The circuit diagram is shown in an accom panying figure.

Title:Michigan Conservation
Publisher: - 1947


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