EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Biological Data of Arctic Char Salvelinus Alpinus from Selected Lakes in Quttinirpaaq National Park Nunavut 1990 2002

Download or read book Biological Data of Arctic Char Salvelinus Alpinus from Selected Lakes in Quttinirpaaq National Park Nunavut 1990 2002 written by J. A. Babaluk and published by . This book was released on 2007 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ecology behaviour and conservation of the charrs genus Salvelinus

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.

Book Enumeration and Biological Data on Arctic Char Salvelinus Alpinus Ikaluit River Nunavut 1974 94

Download or read book Enumeration and Biological Data on Arctic Char Salvelinus Alpinus Ikaluit River Nunavut 1974 94 written by and published by . This book was released on 2003 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents & discusses data collected from 1974 to 1993/94 concerning Arctic char in the Ikaluit River, northern Baffin Island. Data collection activities included counting the fish at a weir constructed in the river to enumerate & sample the 1989 upstream migration of char; sampling & tagging of char caught in the subsistence & commercial fisheries; test netting & sampling of char in lakes north of the Ikaluit River mouth; and otolith-based age determination of sampled char.

Book Enumeration and Biological Data on Arctic Char Salvelinus Alpinus Ikaluit River Nunavut 1974 1994

Download or read book Enumeration and Biological Data on Arctic Char Salvelinus Alpinus Ikaluit River Nunavut 1974 1994 written by Canada. Department of Fisheries and Oceans. Central and Arctic Region and published by . This book was released on 2003 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Lake Charr Salvelinus namaycush Biology Ecology Distribution and Management

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 Genetic Variation in Cultured and Natural Populations of Arctic Charr Salvelinus Alpinus from North America microform

Download or read book Genetic Variation in Cultured and Natural Populations of Arctic Charr Salvelinus Alpinus from North America microform written by Tricia Anne Lundrigan and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2002 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The amount of genetic variation in aquaculture strains of North American Arctic charr (Salvelinus alpinus) was compared to that in natural populations using six microsatellite markers. Aquaculture strains originating from the Fraser River (Labrador), Nauyuk Lake and Tree River (Nunavut), and Lake Aleknagik (Alaska) showed less genetic variability than their wild source populations in terms of allelic diversity. but not necessarily in observed heterozygosity. Pairwise tests for genetic differentiation between populations were significant for all but three comparisons. These comparisons consisted of consecutive year classes of cultured Labrador and Nauyuk fish originating from the same wild collections. A neighbour joining tree based on microsatellite data grouped samples according to their geographic origin. Phylogenetic analysis of mitochondrial control region sequences from S.alpinus-S.malma did not always group samples thought to be conspecific. These results indicate that all hatchery strains and wild populations of Arctic charr- should not be considered equal and that small founding population sizes have contributed to reduced genetic variation in aquaculture strains"--Leaf before i.

Book Biology of the Arctic Charr

    Biology of the Arctic Charr

    Book Details:
  • Author : Lionel Johnson
  • Publisher : Univ. of Manitoba Press
  • Release : 1984-01-01
  • ISBN : 0887550924
  • Pages : 573 pages

Download or read book Biology of the Arctic Charr written by Lionel Johnson and published by Univ. of Manitoba Press. This book was released on 1984-01-01 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Symposium on Arctic charr held in Winnipeg, 4-8 May 1981, on the campus of the University of Manitoba.

Book A Bibliography of the Arctic Char Salvelinus Alpinus L Complex to 1976

Download or read book A Bibliography of the Arctic Char Salvelinus Alpinus L Complex to 1976 written by K. E. Marshall and published by . This book was released on 1977 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Investigation of Arctic Char Salvelinus Alpinus and Lake Trout Salvelinus Namaycush in Lake Clark National Park Alaska

Download or read book An Investigation of Arctic Char Salvelinus Alpinus and Lake Trout Salvelinus Namaycush in Lake Clark National Park Alaska written by Ryan Kreiner and published by . This book was released on 2006 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Survey of Restriction Fragment Length Polymorphism Variation in Arctic Char Salvelinus Alpinus L Mitochondrial DNA

Download or read book Survey of Restriction Fragment Length Polymorphism Variation in Arctic Char Salvelinus Alpinus L Mitochondrial DNA written by Canada. Department of Fisheries and Oceans. Central and Arctic Region and published by . This book was released on 1995 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: