Nisqually Fish Hatchery at Clear Creek, Pierce County, Environmental Assessment (EA).
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Published: 1989
Total Pages: 190
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
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Publisher:
Published: 1989
Total Pages: 190
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DOWNLOAD EBOOKAuthor: W. Nelson Beyer
Publisher: CRC Press
Published: 2011-02-23
Total Pages: 750
ISBN-13: 1420084062
DOWNLOAD EBOOKExamining tissue residues of contaminants in biota reveals the movement of contaminants within organisms and through food chains as well as the context for understanding and quantifying injuries to organisms and their communities. Yet tissue concentrations of some contaminants are especially challenging to interpret and the ability of today’s analytical chemists to provide reliable analytical data of most important environmental contaminants often surpasses the ability of ecotoxicologists to interpret those data. Offering guidance on the ecotoxicologically meaningful interpretation of tissue concentrations, Environmental Contaminants in Biota, Interpreting Tissue Concentrations, Second Edition is updated with current data and new ways of analyzing those data as well as additional contaminants not previously considered. Beginning with a history of wildlife toxicology and data interpretation, chapters cover a wide range of contaminants and their hazardous and lethal concentrations in various animals including DDT, Dioxins, PCBs, and PBDEs in aquatic organisms; methylmurcury, selenium, and trace metals in fishes and aquatic invertebrates; and pharmaceuticals and organic contaminants in marine mammals. The book considers the impact of Polychlorinated Biphenyls, Dibenzo-p-Dioxins and Dibenzofurans, and Polybrominated Diphenyl Ethers; cyclodiene; and other organochlorine pesticides in birds and mammals. Later chapters examine the effects and analysis of lead, cadmium, and radionuclides in biota. With thousands of published research papers reporting tissue concentrations each year, Environmental Contaminants in Biota, Interpreting Tissue Concentrations, Second Edition gives ecotoxicologists the ability to draw actionable value regarding the toxicological consequences of those concentrations and relate tissue concentrations quantitatively to injury: the core of ecotoxicology.
Author: Cornelis Groot
Publisher: UBC Press
Published: 1991
Total Pages: 602
ISBN-13: 9780774803595
DOWNLOAD EBOOKPacific salmon are an important biological and economic resource of countries of the North Pacific rim. They are also a unique group of fish possessing unusually complex life histories. There are seven species of Pacific salmon, five occurring on both the North American and Asian continents (sockeye, pink, chum, chinook, and coho) and two (masu and amago) only in Asia. The life cycle of the Pacific salmon begins in the autumn when the adult female deposits eggs that are fertilized in gravel beds in rivers or lakes. The young emerge from the gravel the following spring and will either migrate immediately to salt water or spend one or more years in a river or lake before migrating. Migrations in the ocean are extensive during the feeding and growing phase, covering thousands of kilometres. After one or more years the maturing adults find their way back to their home river, returning to their ancestral breeding grounds to spawn. They die after spawning and the eggs in the gravel signify a new cycle. Upon this theme Pacific salmon have developed many variations, both between as well as within species. Pacific Salmon Life Histories provides detailed descriptions of the different life phases through which each of the seven species passes. Each chapter is written by a scientist who has spent years studying and observing a particular species of salmon. Some of the topics covered are geographic distribution, transplants, freshwater life, ocean life, development, growth, feeding, diet, migration, and spawning behaviour. The text is richly supplemented by numerous maps, illustrations, colour plates, and tables and there is a detailed general index, as well as a useful geographical index.
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Publisher: National Technical Info Svc
Published: 1998
Total Pages: 648
ISBN-13:
DOWNLOAD EBOOKThis document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Author: United States. Army. Corps of Engineers. Jacksonville District
Publisher:
Published: 1991
Total Pages: 460
ISBN-13:
DOWNLOAD EBOOKAuthor: Arthur Armstrong Denny
Publisher: Franklin Classics
Published: 2018-10-16
Total Pages: 94
ISBN-13: 9780343572549
DOWNLOAD EBOOKThis work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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Published: 1993
Total Pages: 36
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DOWNLOAD EBOOKAuthor: John Eric Auwaerter
Publisher:
Published: 2006
Total Pages: 460
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DOWNLOAD EBOOKAuthor: Walter Woelber Dalquest
Publisher:
Published: 1948
Total Pages: 444
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DOWNLOAD EBOOKAuthor: Mark V. Stalmaster
Publisher: Universe Publishing(NY)
Published: 1987
Total Pages: 256
ISBN-13:
DOWNLOAD EBOOKA thorough study of the bald eagle with information on evolution, classification, breeding and nesting, feeding and foraging, reproduction and survival.