116 resultados para Northern Prairie Wildlife Research Center
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"A few minor corrections were made and this manuscript was reprinted in September 1984."
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Chiefly tables.
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Some numbers in revised editions.
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"October 1965."
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Mode of access: Internet.
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Mode of access: Internet.
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Includes indexes.
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"October 1980."
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"October 1981."
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In October 1980 the U.S. Army Corps of Engineers conducted a beach nourishment project at the Lexington (Michigan) Harbor on the southwest shore of Lake Huron, a project designed to mitigate beach erosion attributable to the installation of the harbor. In response to a request from the Coastal Engineering Research Center (CERC), the U.S. Fish and Wildlife Service's Great Lakes Fishery Laboratory conducted a Corps-funded study from June 1980 to October 1981 along a 8.4-kilometer segment of shoreline adjacent to the harbor to determine the effect of the Corps' beach nourishment project on the nearshore aquatic environment. The study performed by the service included aerial photographic surveys of the study area; measurement of dissolved oxygen, turbidity, and suspended particulate matter levels; and collection of lake bottom sediments, macrozoobenthos and fish. Analysis of the aerial photographs showed that the beach face profile changed markedly during the study as a result of beach nourishment. Dredging of about 19,000 cubic meters of beach sediment from an accretion area adjacent to the harbor's north breakwater caused the beach face to recede, while deposition of this sediment on a feeder beach south of the harbor caused the beach face there to extend lakeward.
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Issued April 1977.
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Includes indexes.
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National Highway Traffic Safety Administration, Washington, D.C.
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"January 1966."
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"April 1976."