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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Animal ecology
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The Lake Charr Salvelinus namaycush: Biology, Ecology, Distribution, and Management (Paperback, 1st ed. 2021)
Loot Price: R5,423
Discovery Miles 54 230
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The Lake Charr Salvelinus namaycush: Biology, Ecology, Distribution, and Management (Paperback, 1st ed. 2021)
Series: Fish & Fisheries Series, 39
Expected to ship within 10 - 15 working days
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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.
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