Laboratory Tests of an Electrical Barrier for Controlling Predation by Northern Squawfish (Classic Reprint) PDF Download
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Author: Galen H. Maxfield Publisher: Forgotten Books ISBN: 9780267215911 Category : Technology & Engineering Languages : en Pages : 20
Book Description
Excerpt from Laboratory Tests of an Electrical Barrier for Controlling Predation by Northern Squawfish Electrical fields were produced by two rows of hollow aluminum electrodes suspended in the water across a laboratory tank. Exploratory tests were run to determine what combinations of electrode arrays, voltage gradients, and electrical conditions would give results warranting systematic testing. Ten fish were tested individually in each of these elimination tests. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Galen H. Maxfield Publisher: Forgotten Books ISBN: 9780267215911 Category : Technology & Engineering Languages : en Pages : 20
Book Description
Excerpt from Laboratory Tests of an Electrical Barrier for Controlling Predation by Northern Squawfish Electrical fields were produced by two rows of hollow aluminum electrodes suspended in the water across a laboratory tank. Exploratory tests were run to determine what combinations of electrode arrays, voltage gradients, and electrical conditions would give results warranting systematic testing. Ten fish were tested individually in each of these elimination tests. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Galen H. Maxfield Publisher: Forgotten Books ISBN: 9780656191383 Category : Technology & Engineering Languages : en Pages : 24
Book Description
Excerpt from Electrical Installation for Control of the Northern Squawfish Osquawfish spawned in the two tributaries in late June and early July; after spawn ing, the fish returned to the reservoir immediately. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Research Council Publisher: National Academies Press ISBN: 0309125391 Category : Nature Languages : en Pages : 611
Book Description
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author: Tim Caro Publisher: Island Press ISBN: 159726959X Category : Nature Languages : en Pages : 394
Book Description
The vast scope of conservation problems has forced biologists and managers to rely on "surrogate" species to serve as shortcuts to guide their decision making. These species-known by a host of different terms, including indicator, umbrella, and flagship species-act as proxies to represent larger conservation issues, such as the location of biodiversity hotspots or general ecosystem health. Synthesizing an immense body of literature, conservation biologist and field researcher Tim Caro offers systematic definitions of surrogate species concepts, explores biological theories that underlie them, considers how surrogate species are chosen, critically examines evidence for and against their utility, and makes recommendations for their continued use. The book clarifies terminology and contrasts how different terms are used in the real world considers the ecological, taxonomic, and political underpinnings of these shortcuts identifies criteria that make for good surrogate species outlines the circumstances where the application of the surrogate species concept shows promise Conservation by Proxy is a benchmark reference that provides clear definitions and common understanding of the evidence and theory behind surrogate species. It is the first book to review and bring together literature on more than fifteen types of surrogate species, enabling us to assess their role in conservation and offering guidelines on how they can be used most effectively.
Author: Galen H. Maxfield
Author: Galen H. Maxfield
Author: Galen H. Maxfield
Author: Galen H. Maxfield
Author: 
Author: National Research Council
Author: 
Author: 
Author: United States. Army. Corps of Engineers
Author: 
Author: Tim Caro