Technical Report Archive & Image Library (TRAIL) - 149 Matching Results

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Mammals of New Mexico

Description: Summary of the species of mammals native to New Mexico, including a map of the life zones, descriptions of the physiographic features, and lists of characteristic zone-marking plants, birds, mammals.
Date: December 1931
Creator: Bailey, Vernon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Alaska-Yukon Caribou

Description: Brief summary of the physical characteristics, general habits, breeding habits, food habits, migratory habits, and habitat of the Alaska-Yukon caribou.
Date: June 1935
Creator: Murie, Olaus J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Mammals and Life Zones of Oregon

Description: From introduction: "Summary of the life zones and mammals of Oregon with emphasis on providing reliable information on the management of wildlife. Importance for identifying those species which are state and national assets, and those species of less value or destructive habits."
Date: 1936
Creator: Bailey, Vernon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Otter Trawl Explorations in Philippine Waters

Description: A trawl fishery of considerable magnitude has developed in the Philippines since liberation from the Japanese in 1945. At the inception of the Philippines Fishery Program of the United States Fish and Wildlife Serve, the trawl fishery was using a Japanese beam trawl and was, for the most part, confined to Manila Bay. Realizing that the supply of fish badly needed by the Philippine public could be augmented by trawling, the program inaugurated exploratory fishing voyages to likely grounds and de… more
Date: 1950
Creator: Warfel, Herbert Elmer & Manacop, Porfirio R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Biological Effects of Ditching Tidewater Marshes

Description: Just a century ago some 625,000 acres of salt, brackish, and freshwater marshes bordered the Atlantic coast from Maine to Virginia. As early as 1885, however, work was begun to reclaim for agriculture considerable acreages of the fresher tidal lands. This research was conducted to study the effects of marshland drainage on plants, wildlife and wildlife habitat.
Date: 1950
Creator: Bourn, Warren Scudder & Cottam, Clarence
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Fishway that Shad Ascend

Description: History and description of the Shad Run at Lawrence Fishway for purposes of design of fishways that will successfully pass shad.
Date: 1951
Creator: Collins, Gerald B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Use of Electricity in the Control of Sea Lampreys: Electromechanical Weirs and Traps and Electrical Barriers

Description: From abstract: An account is given of experiments conducted in 1951 and 1952 with electro-mechanical and electrical barriers for the blocking and/or capture of sea lamprey runs in tributary streams of northern Lake Huron and northern Lake Michigan.
Date: December 1952
Creator: Applegate, Vernon C.; Smith, Bernard R. & Nielsen, Willis L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Directing the Movement of Fish with Electricity

Description: From introduction: The Fish and Wildlife Service's Great Lakes Fishery Investigations has recently developed alternating current electrical devices which appear most promising as a means of controlling the parasitic sea lamprey in the Great Lakes.
Date: January 1953
Creator: McLain, Alberton L. & Nielsen, Willis L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tuna Longline Fishery and Fishing Grounds

Description: From introduction: The Japanese tuna fishery, which formerly had for its fishing grounds almost the whole western Pacific and a part of the Indian Ocean, wherein its small vessels roamed at will, was reduced by the Pacific war to such a nearly complete state of destruction that little was left to remind one of its former condition.
Date: January 1954
Creator: Nakamura, Hiroshi & Van Campen, Wilvan G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Variability of Longline Catches of Yellowfin Tuna

Description: From introduction: The purpose of this paper is to provide a method of estimating the reliability with which longline catches of yellowfin tuna represent the relative abundance of the population.
Date: March 1954
Creator: Murphy, Garth I. & Elliott, Keith C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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