Download or read book Status of Oregon s Bull Trout Distribution Life History Limiting Factors Management Considerations and Status written by David V. Buchanan and published by . This book was released on 1997 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of Oregon s Bull Trout written by and published by . This book was released on 1997 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed in Oregon's coastal systems. A total of 69 bull trout populations in 12 basins are currently identified in Oregon. A comparison of the 1991 bull trout status (Ratliff and Howell 1992) to the revised 1996 status found that 7 populations were newly discovered and 1 population showed a positive or upgraded status while 22 populations showed a negative or downgraded status. The general downgrading of 32% of Oregon's bull trout populations appears largely due to increased survey efforts and increased survey accuracy rather than reduced numbers or distribution. However, three populations in the upper Klamath Basin, two in the Walla Walla Basin, and one in the Willamette Basin showed decreases in estimated population abundance or distribution.
Download or read book Preliminary Status Report on Bull Trout in California Idaho Montana Nevada Oregon and Washington written by William S. Platts and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History and Habitat Study written by Fred Goetz and published by . This book was released on 1991 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History Genetics Habitat Needs and Limiting Factors in Central and Northeast Oregon written by and published by . This book was released on 2001 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History Genetics Habitat Needs and Limiting Factors in Central and Northeast Oregon written by Alan R. Hemmingsen and published by . This book was released on 1996 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History Genetics Habitat Needs and Limiting Factors in Central and Northeast Oregon written by Alan R. Hemmingsen and published by . This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild Trout VII written by and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Trends in Bull Trout Abundance in Idaho Montana Oregon and Washington written by William S. Platts and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Temperature Control McKenzie Subbasin Oregon written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 1997 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book US Highway 93 Ninepipe Ronan Improvement Project written by and published by . This book was released on 2006 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear DNA Analysis of Oregon Bull Trout written by Paul Spruell and published by . This book was released on 1997 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History Genetics Habitat Needs and Limiting Factors in Central and Northeast Oregon written by and published by . This book was released on 2001 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Life History Genetics Habitat Needs and Limiting Factors in Central and Northeast Oregon written by and published by . This book was released on 2001 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 2012-05 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bull Trout Forage Investigations in Beulah Reservoir Oregon annual Report for 2006 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beulah Reservoir on the north fork of the Malheur River in northeastern Oregon provides irrigation water to nearby farms and ranches and supports an adfluvial population of bull trout (Salvelinus confluentus), which are listed as threatened under the Endangered Species Act. Water management in Beulah Reservoir results in seasonal and annual fluctuations of water volume that may affect forage availability for bull trout.
Download or read book Biological Opinion written by U.S. Fish and Wildlife Service. Region 1 and published by . This book was released on 2000 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
