953 resultados para Methods and gear. Catching of fish


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Report year ends June 30.

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Bibliography: leaves 18-19.

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Treasury Dept. Doc. no. 71. Coast and Geodetic Survey.

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Mode of access: Internet.

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"The Illinois Environmental Protection Agency monitors surface waters (i.e. lakes and streams) through a variety of programs. The most extensive is the Ambient Water Quality Monitoring Network (AWQMN) which consists of 203 stream stations statewide sampled on a 6 week cycle since October 1977." -- p. 1.