Download or read book Population Structure and Patterns of Historical Abundance of Sockeye Salmon in the Kvichak River System Bristol Bay Alaska written by Ian Jeremy Stewart and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial and Temporal Patterns of Homeward Migration and Population Structure in Sockeye Salmon Oncorhynchus Nerka in the Wood River System Bristol Bay Alaska written by Katy K. Doctor and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Salmon Research written by and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Segregation of Red Salmon in the Escapements to the Kvichak River System Alaska written by H. D. Smith and published by . This book was released on 1964 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abundance of Sockeye Salmon in the Alagnak River System of Bristol Bay Alaska written by John H. Clark and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of Sockeye Salmon Research Karluk River System Alaska 1880 2010 written by Richard Gard and published by . This book was released on 2014 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth of Sockeye Salmon in Relation to Abundance IntheKvichak District Bristol Bay Alaska written by O. A. Mathisen and published by . This book was released on 1969 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of the Age composition of Spawning Sockeye Salmon on Future Returns of Sockeye Salmon to Bristol Bay Alaska written by Janelle C. Mueller and published by . This book was released on 2011 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The age structure of sockeye salmon on spawning grounds is highly variable, yet little is known about the influence of spawner age composition on subsequent abundance and age composition of recruits. Management of Bristol Bay sockeye salmon relies on estimated spawner abundance to determine escapement goals, without regard to age or size composition. This may not accurately reflect reproductive potential as a basis for setting escapement goals. Parental age structure and environmental conditions were included as independent variables in statistical models to evaluate their effects on the age structure of their progeny. In addition, relationships between spawner age composition and recruit abundance were examined. I found a significant relationship between the age composition of spawners and that of their progeny, as well as environmental effects on age composition. A higher proportion of spawners that spent three years in the ocean were associated with a higher proportion of recruits with this life history pattern, suggesting direct genetic and/or environmental influences. However, redefining spawner-recruit models based on spawner age composition did not significantly improve predictions of the overall number of recruits originating in a given brood year. Nevertheless, the ability to predict the age and hence size composition of returns (with uncertainty), implies that improved predictions of the total biomass of returns in a given year is possible.
Download or read book Historical Growth Patterns of Sockeye Salmon Oncorhynchus Nerka in the Egegik District Bristol Bay Alaska written by Alfredo Miguel Lafarga and published by . This book was released on 1995 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Records and Computations on Red Salmon Oncorhynchus Nerka Runs in the Nushagak District Bristol Bay Alaska 1946 59 written by Ole Alfred Mathisen and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of the Fishery and Summary Statistics of the Sockeye Salmon Oncorhynchus Nerka Runs to the Chignik Lakes Alaska 1888 1966 written by Michael L. Dahlberg and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abundance Size Age and Survival of Red Salmon Smolts from the Ugashik Lakes System Bristol Bay 1965 written by Michael L. Nelson and published by . This book was released on 1966 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abundance Size Age and Survival of Red Salmon Smolts from the Ugashik Lakes System Bristol Bay 1964 written by Michael L. Nelson and published by . This book was released on 1965 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sockeye Salmon Oncorhynchus Nerka written by Canada. Department of Fisheries and Oceans and published by Fisheries and Oceans, Information and Publications Branch. This book was released on 1987 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-day symposium was organized by the Department of Fisheries and Oceans and convened at Nanaimo, British Columbia in November 1985. Advice on subject matter and participation came from an external committee of senior scientists and administrators in contributing agencies in Canada, Japan, the United States, and the Union of Soviet Socialist Republics. The papers included in the proceedings deal with sockeye biology and stock management. Papers on sockeye biology are divided into those concerned primarily with life history strategies and enhancement and development. Papers dealing with management are divided into the tools of management and management of some principal stocks.
Download or read book Salmonid Selection Evolution and Historical Abundance Patterns written by Curry James Cunningham and published by . This book was released on 2015 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific salmon represent an important group of species both from both cultural and economic perspectives. Given the importance of salmonids in marine and freshwater ecosystems, as a component of human food security, it is important to understand what natural and anthropogenic factors influence the evolutionary and demographic dynamics of population across their range, and develop quantitative tools to aid in the implementation of sustainable management practices. This dissertation is focused upon: (i) evaluating whether selective predation by brown bears (Ursus arctos) depends upon the density of their sockeye salmon (Oncorhynchus nerka) prey, (ii) quantifying strength and direction of natural and anthropogenic selection forces and life history tradeoffs that shaping optimal phenotypic distributions for populations of sockeye in Bristol Bay, Alaska, (iii) development of methods for reconstructing salmon run size by partitioning mixed-stock catches while accounting for differences in availability to harvest within common fishing areas and interception in spatially proximate terminal fishing districts using both age and genetic composition of catch data, (iv) simulation testing of a stage-structured statistical life cycle model for evaluating the natural and anthropogenic drivers of Chinook salmon (O. tshawytscha), and (v) an application for the statistical life cycle model to seven populations of fall and spring-run Chinook in the Sacramento River watershed of California.
Download or read book Abundance Size and Age of Red Salmon Smolts from the Ugashik Lakes System Bristol Bay 1963 written by Michael L. Nelson and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Research written by and published by . This book was released on 1973 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
