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The Relationship Between Preferred Temperature And Ration Size In Lake Trout Salvelinus Namaycush
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Book Synopsis The Relationship Between Preferred Temperature and Ration Size in Lake Trout, Salvelinus Namaycush by : Michael J. Mac
Download or read book The Relationship Between Preferred Temperature and Ration Size in Lake Trout, Salvelinus Namaycush written by Michael J. Mac and published by . This book was released on 1980 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology of Young Lake Trout (Salvelinus Namaycush) in Lake Michigan by : John Van Oosten
Download or read book Biology of Young Lake Trout (Salvelinus Namaycush) in Lake Michigan written by John Van Oosten and published by . This book was released on 1956 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental fishing with gill nets of 5 mesh sizes (2 3/8 to 3 inches) in Lake Michigan in 1930-32 yielded more than 16,000 young lake trout. Data are presented here on age, growth, length-weight relationship, abundance, geographical and bathymetric distribution, and other details of their biology.
Book Synopsis The Lake Charr Salvelinus namaycush: Biology, Ecology, Distribution, and Management by : Andrew M. Muir
Download or read book The Lake Charr Salvelinus namaycush: Biology, Ecology, Distribution, and Management written by Andrew M. Muir and published by Springer Nature. This book was released on 2021-03-03 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lake charr Salvelinus namaycush is a ubiquitous member of cold-water lake ecosystems in previously glaciated regions of northern continental U.S., Alaska, and Canada that often support important commercial, recreational, and subsistence fisheries. The lake charr differs from other charrs by its large size, longevity, iteroparity, top-predator specialization, reduced sexual dimorphism, prevalence of lacustrine spawning, and use of deepwater habitat. The species is remarkably variable in phenotype, physiology, and life history, some of which is reflected in its ecology and genetics, with as many as four morphs or ecotypes co-occurring in a single lake. The lake charr is often the top predator in these systems, but is highly adaptable trophically, and is frequently planktivorous in small lakes. The lake charr by their name highlights their common habitat, lakes both large and small, but often frequents rivers and occasionally moves into the Arctic Ocean. Movement and behaviour of lake charr are motivated by access to cool, well-oxygenated water, foraging opportunities, predator avoidance, and reproduction. Owing to their broad distribution and trophic level, the lake charr serves as a sentinel of anthropogenic change. This volume will provide an up-to-date summary of what is currently known about lake charr from distribution to genetics to physiology to ecology. The book provides a compilation and synthesis of available information on the lake charr, beginning with an updated distribution and a revised treatment of the paleoecology of the species. Understanding of ecological and genetic diversity and movement and behaviour of the species has advanced remarkably since the last major synthesis on the species over 40 years ago. Mid-sections of the book provide detailed accounts of the biology and life history of the species, and later sections are devoted to threats to conservation and fishery management practices used to ensure sustainability. A new standard lake charr-specific terminology is also presented. The book will be a valuable reference text for biologists around the world, ecologists, and fishery managers, and of interest to the angling public.
Book Synopsis Climate Change and Northern Fish Populations by : National Research Council Canada
Download or read book Climate Change and Northern Fish Populations written by National Research Council Canada and published by NRC Research Press. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Book Synopsis Response of Lake Trout and Rainbow Trout to Dietary Cellulose by : Hugh A. Poston
Download or read book Response of Lake Trout and Rainbow Trout to Dietary Cellulose written by Hugh A. Poston and published by . This book was released on 1986 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lake Trout Salvelinus Namaycush Growth Efficiency As Affected by Temperature by : William P. Dwyer
Download or read book Lake Trout Salvelinus Namaycush Growth Efficiency As Affected by Temperature written by William P. Dwyer and published by . This book was released on 1981 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology, behaviour and conservation of the charrs, genus Salvelinus by : Pierre Magnan
Download or read book Ecology, behaviour and conservation of the charrs, genus Salvelinus written by Pierre Magnan and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salvelinus species are one of the most thoroughly studied groups of fishes. Many reasons explain this intense interest in charr biology. Charrs have a Holarctic distribution encompassing many Asian, North American, and European countries and occupy diverse marine and freshwater environments. Furthermore, the current distribution of charr includes areas that were directly influenced by climate and topographic change associated with the many Pleistocene glaciations. Undoubtedly, these conditions have promoted much of the tremendous morphological, ecological, and genetic variability and plasticity within Salvelinus species and they make charr very good models to study evolutionary processes 'in action'. Many charr species also exhibit demographic characteristics such as slow growth, late maturity, and life in extreme environments, that may increase their susceptibility to extinction from habitat changes and overexploitation, especially in depauperate aquatic habitats. This vulnerability makes understanding their biology of great relevance to biodiversity and conservation. Finally, charr are of great cultural, commercial, and recreational significance to many communities, and their intimate linkage with human societies has stimulated much interest in this enigmatic genus. This volume comprises a selection of papers presented at the fourth International Charr Symposium held in Trois-Rivières (Québec, Canada), from 26 June to 1 July 2000. It includes 31 papers on ecological interactions and behaviour, trophic polymorphism, movement and migration, ecophysiology and evolutionary genetics, ecological parasitology, environmental stress and conservation. These studies cannot cover all recent developments in the ecology, behaviour and conservation of Salvelinus species, but collecting them into a special volume should bring attention to current research on this important genus and stimulate further work on Salvelinus species.
Download or read book Global Warming written by C. M. Wood and published by Cambridge University Press. This book was released on 1997-05-13 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global warming and climate change are growing environmental concerns which are much in the scientific, governmental and public eye. The potential impact on freshwater and marine fishes is immense, because most fish have no physiological ability to regulate their body temperature. This volume focuses on the effects of temperature at all levels of organization in fish, with particular emphasis on physiological function: cells, epithelia, organ systems, the whole organism, reproduction, behaviour, pollutant interactions, ecology and population dynamics, with each chapter written by experts in the field. Many chapters also speculate on the long-term physiological and ecological implications to fish of a 2-4°C global warming scenario. Researchers and graduate students in the areas of animal physiology and behaviour, environmental toxicology, population ecology and fisheries biology and management will find this volume of particular interest.
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2009-10 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Climate Change on North-temperate Lake Trout (Salvelinus Namaycush) Populations by : Matthew Michael Guzzo
Download or read book The Effects of Climate Change on North-temperate Lake Trout (Salvelinus Namaycush) Populations written by Matthew Michael Guzzo and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic ecosystems are expected to undergo major changes in response to climate change. Lake trout (Salvelinus namaycush) is predatory fish found in oligotrophic lakes of Canada and is considered a sentinel species for studying the impacts of warming on lakes due to its requirement for cold water. The objective of this thesis was to determine the impacts of warming on north-temperate lake trout populations. In Chapters 1-3, I used long-term datasets collected from small lakes near the southern extent of lake trout's distribution to determine how warming impacts thermal habitat and how these habitat changes cascade to alter the behaviour and growth of individuals and ultimately population-level characteristics of this species. I found that over a period when annual air temperatures increased by ≈ 2 ̊C there was a 14-day reduction, on average, in the ice-free season and an equal extension of summer - a period when littoral zone temperatures exceed the metabolic optimal for lake trout. Years with shorter springs and longer summers negatively impacts lake trout by limiting access to littoral prey, resulting in slower growth and reduced condition. I also found that the growth and size structure of an unexploited lake trout population shifted during this warming period; the population is now made up of a larger number of small individuals with lower condition and reduced life span. Lake trout also began to mature at younger ages and had reduced maximum size. Results suggest these changes in size-structure were not due to changes in the amount or size of prey fish or density-dependence, as the biomass of adult lake trout remained constant over time. In Chapter 4, I collected data from a northern lake to describe the seasonal ecology of this northern lake trout population and predict how warming might alter growth. I found that lake trout displayed similar seasonal cycles in habitat use and diet as in southern lakes, but that the use of littoral habitat was far reduced, likely due to the presence of pelagic prey fish and northern pike (Esox lucius) in this lake. Lastly, bioenergetic simulations indicated that the under a 2 ̊C warming scenario, the growth and consumption of lake trout would increase in this northern lake assuming prey was readily available.
Book Synopsis Midyear Report by : Great Lakes Fishery Laboratory
Download or read book Midyear Report written by Great Lakes Fishery Laboratory and published by . This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quarterly Report by : Great Lakes Fishery Laboratory
Download or read book Quarterly Report written by Great Lakes Fishery Laboratory and published by . This book was released on 1983 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of Lake Trout (Salvelinus Namaycush) by : Christopher Todd Weeks
Download or read book Dynamics of Lake Trout (Salvelinus Namaycush) written by Christopher Todd Weeks and published by . This book was released on 1997 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Fishery Research written by and published by . This book was released on 1980 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feeding Habits of Immature Lake Trout (Salvelinus Namaycush) in the Michigan Waters of Lake Michigan by : Kenneth James Wright
Download or read book Feeding Habits of Immature Lake Trout (Salvelinus Namaycush) in the Michigan Waters of Lake Michigan written by Kenneth James Wright and published by . This book was released on 1968 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Bathythermal Habitat Use by Lake Trout and Lake Whitefish in Lake Huron as Measured with Implanted Archival Tags by : Roger Allen Bergstedt
Download or read book Seasonal Bathythermal Habitat Use by Lake Trout and Lake Whitefish in Lake Huron as Measured with Implanted Archival Tags written by Roger Allen Bergstedt and published by . This book was released on 2008 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model-based Exploration of the Variability in Lake Trout (Salvelinus Namaycush) BAFs Caused by Physiology and Trophic Relationships by : Sivani Baskaran
Download or read book Model-based Exploration of the Variability in Lake Trout (Salvelinus Namaycush) BAFs Caused by Physiology and Trophic Relationships written by Sivani Baskaran and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because eating fish is often a major vector of human exposure to persistent organic pollutants (POPs), much effort is directed towards a quantitative understanding of fish bioaccumulation using mechanistic models. Many such models fail to consider how uptake and loss rate constants relate to fish physiology. Here, we calculate the bioaccumulation factor (BAF) of hypothetical POPs, with octanol-water partition coefficients values ranging from 104.5 to 108.5, in lake trout (Salvelinus namaycush), with a food web bioaccumulation model that uses bioenergetics to ensure that physiological parameters applied to a species are internally consistent and energetically balanced. Fish in six Canadian lakes were modelled to understand what causes the BAFs of differently sized lake trout to vary between and within lakes. Lake trout activity, diet composition, prey contamination levels and the fraction of the total energy intake spent on growth were found to affect the bioaccumulation potential of chemicals.
