Download or read book Genetic Differentiation of Resident and Anadromous Rainbow Trout Salmo Gairdneri in the Deschutes River Basin Oregon written by Kenneth P. Currens and published by . This book was released on 1987 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pacific Salmon their Ecosystems written by Deanna J. Stouder and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposium "Pacific Salmon and Their Ecosystems: Status and Future Options',' and this book resulted from initial efforts in 1992 by Robert J. Naiman and Deanna J. Stouder to examine the problem of declining Pacific salmon (Oncorhynchus spp.). Our primary goal was to determine informational gaps. As we explored different scientific sources, state, provincial, and federal agencies, as well as non-profit and fishing organizations, we found that the information existed but was not being communicated across institutional and organizational boundaries. At this juncture, we decided to create a steering committee and plan a symposium to bring together researchers, managers, and resource users. The steering committee consisted of members from state and federal agencies, non-profit organizations, and private industry (see Acknowledgments for names and affiliations). In February 1993, we met at the University of Washington in Seattle to begin planning the symposium. The steering committee spent the next four months developing the conceptual framework for the symposium and the subsequent book. Our objectives were to accomplish the following: (1) assess changes in anadromous Pacific Northwest salmonid populations, (2) examine factors responsible for those changes, and (3) identify options available to society to restore Pacific salmon in the Northwest. The symposium on Pacific Salmon was held in Seattle, Washington, January 10-12, 1994. Four hundred and thirty-five people listened to oral presentations and examined more than forty posters over two and a half days. We made a deliberate attempt to draw in speakers and attendees from outside the Pacific Northwest.

Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1991 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries Review written by and published by . This book was released on 1991 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Analysis of Washington Steelhead written by and published by . This book was released on 1994 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Reports written by and published by . This book was released on 1981 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Native Trout Project written by and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Journal of Fisheries Management written by and published by . This book was released on 1997 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2000-10 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112114043315 and Others written by and published by . This book was released on 2013 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Comparison of Deschutes River Steelhead and Rainbow Trout at Selected Enzyme Loci written by Mark W. Chilcote and published by . This book was released on 1976 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book San Mateo County Coastal Streams written by and published by . This book was released on 2002 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Racial Characteristics in Stocks of Anadromous Rainbow Trout Salmo Gairdneri Richardson written by Stuart Boland Smith and published by . This book was released on 1968 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copeia written by and published by . This book was released on 1990 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Racial Identification of Juvenile Summer and Winter Steelhead and Resident Rainbow Trout Salmo Gairdneri Richardson written by Brian D. Winter and published by . This book was released on 1987 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic and Phenotype Phenotypic Catalog of Native Resident Trout of the Interior Columbia River Basin written by and published by . This book was released on 2001 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1994 Fish and Wildlife Program of the Northwest Power Planning Council specifies the recovery and preservation of population health of native resident fishes of the Columbia River Basin. Among the native resident species of concern are interior rainbow trout of the Columbia River redband subspecies Oncorhynchus mykiss gairdneri 1 and westslope cutthroat trout O. clarki lewisi. The westslope cutthroat trout has been petitioned for listing under the U.S. Endangered Species Act (American Wildlands et al. 1997). Before at-risk populations can be protected, their presence and status must be established. Where introgression from introduced species is a concern, as in the case of both westslope cutthroat trout and redband rainbow trout, genetic issues must be addressed as well. As is true with native trout elsewhere in the western United States (Behnke 1992), most of the remaining pure populations of these species in the Columbia River Basin are in relatively remote headwater reaches. The objective of this project is to photo-document upper Columbia Basin native resident trout populations in Washington, and to ascertain their species or subspecies identity and relative genetic purity using a nonlethal DNA technique. FY-99 was year two of a five-year project in which we conducted field visits to remote locations to seek out and catalog these populations. In FY-99 we worked in collaboration with the Colville National Forest and Kalispel Indian Tribe to catalog populations in the northeastern corner of Washington State.

Download or read book Use of Otoliths to Differentiate Juvenile Steelhead Trout from Juvenile Rainbow Trout in the Lower Deschutes River Oregon written by James Todd Rybock and published by . This book was released on 1973 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reported are results of a study of otolith nuclei as a means to separate juvenile steelhead trout (Salmo gairdneri) from juvenile rainbow trout (S. gairdneri) which co-exist in the lower Deschutes River, Oregon. An intensive recreational fishery necessitated development of a technique for separation so that the impact of the fishery on each race could be assessed independently. Results revealed that steelhead trout mature at a larger size than rainbow trout, egg size in both races is directly related to body size of dam, and size of otolith nucleus is positively correlated with egg size in rainbow trout. Examination of adults demonstrated, in fact, that otolith nuclei of steelhead are significantly larger than those of rainbow. Size of otolith nucleus does not change with growth of either fish, nor are there differences due to sex or origin. The validity and utility of this method to separate the races were confirmed. Regressions of length and weight of otolith on length of fish demonstrated that otoliths of juvenile steelhead grow at the same rate as those of rainbow, whereas adult steelhead on their spawning migration are longer than rainbow for a given length or weight of otolith. A list of methods used by others to facilitate the viewing of otoliths and a discussion of the formation of the otolith nucleus are included.