Download or read book Freshwater and Ocean Survival of Atlantic Salmon and Steelhead written by Patrick W. Bley and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater and Ocean Survival of Atlantic Salmon and Steelhead Trout written by and published by . This book was released on 1988 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater and Ocean Survival of Atlantic Salmon and Steelhead written by Patrick W. Bley and published by . This book was released on 1988 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater and Ocean Survival of Atlantic Salmon and Steelhead written by Patrick W. Bley and published by . This book was released on 1988 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species Profiles written by Dwight S. Danie and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Species Profiles written by S. Gordon Rogers and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolutionary Biology of the Atlantic Salmon written by Tomislav Vladić and published by CRC Press. This book was released on 2015-08-10 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic salmon (Salmo salar, L) is an anadromous species contributing to major fishery catches and comprising a significant part of the aquaculturally produced fish for human consumption. The aim of this book is to incite the interest in the field of knowledge gathered from a broad scope of disciplines that have investigated this fish species. Und
Download or read book Biological Report written by and published by . This book was released on 1988 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Status of Atlantic Salmon in Maine written by National Research Council and published by National Academies Press. This book was released on 2002-03-22 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic salmon in Maine, once abundant but now seriously depleted, were listed as endangered under the federal Endangered Species Act (ESA) in November 2000. The listing covers the wild fish in eight Maine rivers as a single "distinct population segment." The controversy in Maine that accompanied the listing led Congress to request the National Research Council's (NRC's) advice on the science relevant to understanding and reversing the declines in Maine's salmon populations. The charge to the NRC's Committee on Atlantic Salmon in Maine included an interim report focusing on the genetic makeup of Maine Atlantic salmon populations. This is the interim report. Understanding the genetic makeup of Maine's salmon is important for recovery efforts, because the degree to which populations in Maine differ from adjacent populations in Canada and the degree to which populations in different Maine rivers and tributaries differ from each other affect the choice of recovery options that are most likely to be effective. This report focuses only on questions of genetic distinctiveness. The committee's final report will address the broader issues, such as the factors that have caused Maine's salmon populations to decline and the options for helping them to recover.
Download or read book Ecology and Management of Atlantic Salmon written by D. Mills and published by Springer Science & Business Media. This book was released on 1991-09-30 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: From reviews of the hardback edition:- No matter how experienced a salmon man the reader is, I cannot believe he will study this extremely informative book without learning a great deal and gaining much enjoyment from doing so.The biology and life of the salmon . . .are all dealt with in a most interesting manner . . .Highly recommended. A book not to be read just once, but often to be consulted.; This book is dedicated to Salar the Salmon and what a tribute it is to this unique fish. Supporters of the Trust would be wise to purchase this book and to keep it on the shelf for future reference. - Atlantic Salmon Trust Progress Report
Download or read book The Dynamics and Use of Lacustrine Ecosystems written by V. Ilmavirta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limnology is increasingly concerned with water supply and the relation of man to aquatic environments. Without the continued availability of pure water, all progress in technology and other fields of human life will be to no avail. The global problems concerning clear water are already extremely pressing. More limnology knowledge is needed to solve these problems. The responsibility of man to save water and to take more intensive care of the environment is raised in many of the papers, in this book. This emphasizes the necessary and unquestionable relevance of limnology to human society. Too often the abuse of water usage reflects the neglect of scientific results. Limnologists have a responsibility to ensure that administrators understand what is going on. The coverage of the book is wide, including papers on microbiology to engineering sciences. The biology of waters is handled at both species and ecosystem levels. The geographical distribution of topics ranges from the tropics to northern temperate areas. In fact, limnology is increasingly becoming a science which is, rightly, relevant to everyday life, not just an academic subject.
Download or read book To Sea Back written by Richard Shelton and published by Atlantic Books. This book was released on 2011-05-01 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: STRONGCombining exquisite natural history with beguiling autobiographical and historical narrative, a portrait of a fish whose story is closely intertwined with our own The Atlantic salmon is an extraordinary and mysterious fish. Here, Richard Shelton combines memoir and deep scientific knowledge to reveal, from the salmon's point of view, both the riverine and marine worlds in which it lives. He explores this iconic fish's journey to reach its feeding grounds in the northern oceans before making the return over thousands of miles to the brooks of its birth to reproduce. Along the way, Shelton describes the feats of exploration that gave us our first real understanding of the oceans, and shows how this iconic fish is a vital indicator of the health of our rivers and oceans. Above all, this is the story of Richard Shelton's lifelong passion for the sea and his attempt to solve the perennial enigmas of the salmon's secret life.
Download or read book Atlantic Salmon written by Rod Sutterby and published by Stackpole Books. This book was released on 2005 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the salmon's extraordinary life cycle and covers the scientific research on exactly where salmon travel to in the sea, what influences the numbers that return to the river, the impact of global warming on migratory patterns, and what we can tell from scale readings.
Download or read book Fishery Bulletin written by and published by . This book was released on 1990 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Salmon Ecology written by Øystein Aas and published by John Wiley & Sons. This book was released on 2010-10-18 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlantic salmon is one of the most prized and exploited species worldwide, being at the centre of a massive sports fishing industry and increasingly as the major farmed species in many countries worldwide. Atlantic Salmon Ecology is a landmark publication, both scientifically important and visually attractive. Comprehensively covering all major aspects of the relationship of the Atlantic salmon with its environment, chapters include details of migration and dispersal, reproduction, habitat requirements, feeding, growth rates, competition, predation, parasitsm, population dynamics, effects of landscape use, hydro power development, climate change, and exploitation. The book closes with a summary and look at possible future research directions. Backed by the Norwegian Research Council and with editors and contributors widely known and respected, Atlantic Salmon Ecology is an essential purchase for all those working with this species, including fisheries scientists and managers, fish biologists, ecologists, physiologists, environmental biologists and aquatic scientists, fish and wildlife department personnel and regulatory bodies. Libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important publication. Comprehensive and up-to-date coverage of Atlantic Salmon Atlantic Salmon is one of the world's most commercially important species Backed by the Norwegian Research Council Experienced editor and internationally respected contributors
Download or read book The Ocean Life of Atlantic Salmon written by Derek Mills and published by Wiley-Blackwell. This book was released on 1999-12-16 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is disturbing evidence of high mortality of salmon at sea. The need for a multidisciplinary study of contributing factors and appropriate action has been advocated for some time. As a result, the Atlantic Salmon Trust, organised a workshop under the chairmanship of Derek Mills to redress this situation, bringing together climatologists, oceanographers, planktonologists and marine and salmon biologists to clarify and discuss the environmental and biological issues affecting survival. Proposals are put forward for further research and collaboration.
