Icicle Creek Restoration Project
Author:
Publisher:
Published: 2002
Total Pages: 416
ISBN-13:
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Author:
Publisher:
Published: 2002
Total Pages: 416
ISBN-13:
DOWNLOAD EBOOKAuthor: Margaret F. Docker
Publisher: Springer
Published: 2014-11-24
Total Pages: 451
ISBN-13: 9401793069
DOWNLOAD EBOOKThe book provides the most comprehensive review of lamprey biology since Hardisty and Potter’s five-volume “The Biology of Lampreys” published more than 30 years ago. Published in two volumes, it includes contributions from international lamprey experts, reviewing and providing new insights into the evolution, general biology, and management of lampreys worldwide. This first volume offers up-to-date chapters on the systematics, general biology, conservation status, and conservation needs of lampreys. It will serve as an important reference for researchers working on any aspect of lamprey biology and fishery managers whose mandate is to control or conserve lamprey populations.
Author:
Publisher:
Published: 1994
Total Pages: 262
ISBN-13:
DOWNLOAD EBOOKAuthor: Margaret F. Docker
Publisher: Springer
Published: 2019-06-03
Total Pages: 590
ISBN-13: 9402416846
DOWNLOAD EBOOKThis book, published in two volumes, provides the most comprehensive review of lamprey biology since Hardisty and Potter’s “The Biology of Lampreys” published more than 30 years ago. This second volume offers a synthesis of topics related to the lamprey gonad (e.g., lamprey sex ratios, sex determination and sex differentiation, sexual maturation, and sex steroids), the artifical propagation of lampreys, post-metamorphic feeding and the evolution of alternative feeding and migratory types, the history and status of sea lamprey control in the Laurentian Great Lakes and Lake Champlain, and an overview of contributions of lamprey developmental studies for understanding vertebrate evolution.
Author: Richard Beamish
Publisher: Cambridge Scholars Publishing
Published: 2016-02-29
Total Pages: 436
ISBN-13: 1443889644
DOWNLOAD EBOOKHagfishes and lampreys, both examples of jawless fishes, are elongated, eel-like animals lacking paired fins, and are the only living representatives of ancient creatures that gave rise to current species of fish and, eventually, humans. This volume provides an overview of the current status of knowledge on a variety of topics related to jawless fishes, including their taxonomy, zoogeography, phylogeny, molecular biology, evolution, life history, role in the ecosystem, and fisheries and management of hagfishes and lampreys worldwide. This is the first book dealing exclusively with the various aspects of jawless fish species throughout the world. It brings together a number of papers providing new data on jawless fishes, and offers readers a range of useful information within a single reference, reflecting the growing appreciation for hagfishes and lampreys worldwide.
Author: National Research Council
Publisher: National Academies Press
Published: 1996-08-17
Total Pages: 473
ISBN-13: 0309053250
DOWNLOAD EBOOKThe importance of salmon to the Pacific Northwestâ€"economic, recreational, symbolicâ€"is enormous. Generations ago, salmon were abundant from central California through Idaho, Oregon, and Washington to British Columbia and Alaska. Now they have disappeared from about 40 percent of their historical range. The decline in salmon numbers has been lamented for at least 100 years, but the issue has become more widespread and acute recently. The Endangered Species Act has been invoked, federal laws have been passed, and lawsuits have been filed. More than $1 billion has been spent to improve salmon runsâ€"and still the populations decline. In this new volume a committee with diverse expertise explores the complications and conflicts surrounding the salmon problemâ€"starting with available data on the status of salmon populations and an illustrative case study from Washington state's Willapa Bay. The book offers specific recommendations for salmon rehabilitation that take into account the key role played by genetic variability in salmon survival and the urgent need for habitat protection and management of fishing. The committee presents a comprehensive discussion of the salmon problem, with a wealth of informative graphs and charts and the right amount of historical perspective to clarify today's issues, including: Salmon biology and geographyâ€"their life's journey from fresh waters to the sea and back again to spawn, and their interaction with ecosystems along the way. The impacts of human activitiesâ€"grazing, damming, timber, agriculture, and population and economic growth. Included is a case study of Washington state's Elwha River dam removal project. Values, attitudes, and the conflicting desires for short-term economic gain and long-term environmental health. The committee traces the roots of the salmon problem to the extractive philosophy characterizing management of land and water in the West. The impact of hatcheries, which were introduced to build fish stocks but which have actually harmed the genetic variability that wild stocks need to survive. This book offers something for everyone with an interest in the salmon issueâ€"policymakers and regulators in the United States and Canada; environmental scientists; environmental advocates; natural resource managers; commercial, tribal, and recreational fishers; and concerned residents of the Pacific Northwest.
Author:
Publisher:
Published: 1988
Total Pages: 1132
ISBN-13:
DOWNLOAD EBOOKAuthor: United States Environmental Protection Agency (EPA)
Publisher: Createspace Independent Publishing Platform
Published: 2018-08-15
Total Pages: 276
ISBN-13: 9781725607576
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Author: United States. Federal Aviation Administration
Publisher:
Published: 1994
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKAuthor: Eric A. Stene
Publisher:
Published: 1994
Total Pages: 56
ISBN-13:
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