Download or read book Estimates of Atlantic Salmon Smolt Production in the Western Brook System Newfoundland written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimates of Atlantic Salmon Smolt Production in the Western Brook System Newfoundland written by Canada. Dept. of Fisheries and Oceans. Newfoundland Region and published by Corner Brook, N.L. : Fisheries and Oceans. This book was released on 2004 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Characteristics of Atlantic Salmon Smolts in Western Arm Brook Newfoundland written by Canada. Department of Fisheries and Oceans. Newfoundland Region. Research and Resource Services Directorate and published by St. John's Nfld. : Government of Canada, Fisheries and Oceans. This book was released on 1981 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic salmon smolt migrations were counted on Western Arm Brook, Newfoundland, from 1971 to 1979. The mean count was 9598 fish; the mean smolt age was 3.9 yr; the mean fork length was 174 mm; the mean condition was 0.90; the average sex ratio was 74% female. Size and condition of smolts had the least variance of all characteristics. Western Arm Brook produced a relatively high number of smolts for its size of drainage area. Year-class strength of smolts was correlated to numbers of kelt as potential parents. Smolt age was correlated to air temperature in the first year of life. Ovarian weight was greater in older smolts. Speculation was made on the importance of smolt size.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1998 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Behaviour Survival and Production of Atlantic Salmon Salmo Salar L Smolts in the Western Brook System written by Jason Paul Dietrich and published by . This book was released on 2001 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Characteristics of Atlantic Salmon Smolts in Western Arm Brook Newfoundland written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1981 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rivers of North America written by Arthur C. Benke and published by Elsevier. This book was released on 2011-09-06 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt: AWARDS:2006 Outstanding Academic Title, by CHOICEThe 2005 Award for Excellence in Professional and Scholarly Publishing by the Association of American Publishers (AAP) Best Reference 2005, by the Library JournalRivers of North America is an important reference for scientists, ecologists, and students studying rivers and their ecosystems. It brings together information from several regional specialists on the major river basins of North America, presented in a large-format, full-color book. The introduction covers general aspects of geology, hydrology, ecology and human impacts on rivers. This is followed by 22 chapters on the major river basins. Each chapter begins with a full-page color photograph and includes several additional photographs within the text. These chapters feature three to five rivers of the basin/region, and cover several other rivers with one-page summaries. Rivers selected for coverage include the largest, the most natural, and the most affected by human impact. This one-of-a-kind resource is professionally illustrated with maps and color photographs of the key river basins. Readers can compare one river system to another in terms of its physiography, hydrology, ecology, biodiversity, and human impacts.* Extensive treatment provides a single source of information for North America's major rivers* Regional specialists provide authoritative information on more than 200 rivers* Full-color photographs and topographical maps demonstrate the beauty, major features, and uniqueness of each river system* One-page summaries help readers quickly find key statistics and make comparisons among rivers
Download or read book Atlantic Salmon salmo Salar L Smolt Production Parameter Values for Fluvial and Lacustrine Habitats in Insular Newfoundland written by M.F. O'Connell and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Salmon Salmo Salar L Egg Deposition Potential and Annual Smolt Production for Three River Systems Characterized by Lacustrine Habitat in Insular Newfoundland written by M. F. O'Connell and published by [Dartmouth, N.S.] : Canadian Atlantic Fisheries Scientific Advisory Committee. This book was released on 1986* with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production of Juvenile Atlantic Salmon Salmo Salar in Natural Waters written by National Research Council Canada and published by NRC Research Press. This book was released on 1993 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date information, knowledge and research in progress in scientific fields related to natural production of juvenile Atlantic salmon and some other ecologically similar fluvial salmonids is contained in the 25 papers and 12 abstracts contained in this publication, which were prepared for an international symposium held in St. John's, Newfoundland. Studies relate to stream ecology, invertebrates and predators, habitat improvement, competitive effects, behaviour and dispersal, habitat and production of juvenile salmon, population dynamics and relationships of juvenile salmon estimates to smolt yields. A list of participants at the conference is also provided.
Download or read book Production Estimation of Atlantic Salmon Salmo Salar L Smolt in the Foyle System Ireland by Mark Re capture written by Arthur James Niven and published by . This book was released on 2004 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Technical Report of Fisheries and Aquatic Sciences written by and published by . This book was released on 1988 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Special Publication of Fisheries and Aquatic Sciences written by and published by . This book was released on 1993 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the International Large River Symposium LARS written by D. P. Dodge and published by Fisheries and Oceans, Communications Directorate. This book was released on 1989 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objectives of LARS were 1) To produce reliable estimates of fish yield by: a) reviewing existing estimators of production and standing stocks in large rivers and b) summarizing current river inventory and assessment techniques for biotic and abiotic variables; 2) To publish the case studies and synthesis papers; 3) To identify areas requiring further study to improve river resource management; and 4) To improve communication and liaison between scientists in research and management, university and government.
Download or read book The Rivers of Labrador written by T. C. Anderson and published by . This book was released on 1985 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of relevant data on the physical characteristics of the rivers and their fish populations, with emphasis on Atlantic salmon. Emphasis is also placed on rivers with watershed areas greater than 50 square kilometers.
Download or read book Atlantic Salmon in Maine written by National Research Council and published by National Academies Press. This book was released on 2004-09-07 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the pervasive and substantial decline of Atlantic salmon populations in Maine over the past 150 years, and because they are close to extinction, a comprehensive statewide action should be taken now to ensure their survival. The populations of Atlantic salmon have declined drastically, from an estimated half million adult salmon returning to U.S. rivers each year in the early 1800s to perhaps as few as 1,000 in 2001. The report recommends implementing a formalized decision-making approach to establish priorities, evaluate options and coordinate plans for conserving and restoring the salmon.
Download or read book Ecology of Atlantic Salmon and Brown Trout written by Bror Jonsson and published by Springer Science & Business Media. This book was released on 2011-05-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.
