The proceedings of a special technical session dealing with the addition of Ca based materials to waters and soils for the purpose of restoring or enhancing fisheries in acidified waters are contained in this volume. The session was part of the North American Fisheries Society's annual meeting sponsored by the Water Quality Section of the Society. While the concept of liming is not new, the extent of the recent research, demonstrations and applications reported at the conference is enlightening. Six countries are represented by government, state and private sector participants. The scope of activities reported in the following 23 papers range from the simple to the very complex addition of liming materials to ponds, lakes, streams and watersheds. This volume of presentations is broad and impressive as are the methods used in the actual application of the neutralizing materials. Those programs that are demonstration application oriented are deploying techniques that are either new or modifications of existing technology.
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Table of ContentsSection I Program Overview.- Operational Liming of Surface Waters in Sweden.- Liming Acidic Waters in Norway: National Policy and Research and Development.- Loch Fleet A Research Watershed Liming Project.- An Update on the Lake Acidification Mitigation Project (LAMP).- Cooperative Federal-State Liming Research on Surface Waters Impacted by Acidic Deposition.- An Overview of Lake Neutralization Experiments in Ontario.- Living Lakes: An Aquatic Liming and Fish Restoration Demonstration Program.- ‘New Type’ Forest Declines and Restabilization, Revitalization Strategies: A Programmatic Focus.- Section II Lakes.- Changes in the Fish Community of a Limed Lake near Sudbury, Ontario: Effects of Chemical Neutralization of Reduced Atmospheric Deposition of Acids?.- Dose-Response Relationships for the Addition of Limestone to Lakes and Ponds in the Northeastern United States.- Liming of Lakes, Rivers and Catchments in Norway.- Lake Liming in Different Types of Acid Lakes Using Various Types of Calcite Powder and Methods.- Effects of Lake Liming on Phytoplankton Growth in Acidic Adirondack Lakes.- An Evaluation of New York State Liming Data and the Application of Models from Scandanavian Lakes to Adirondack Lakes.- Differences in Pre- and Post-Treatment Water Qualities for Twenty Limed Lakes.- Evaluation of Liming Operations through Benefit-Cost Analysis.- Section III Streams.- Effects of Liming on Water Quality of Two Streams in West Virginia.- The Effects of Stream Liming on Water Chemistry and Anadromous Yellow Perch Spawning Success in Two Maryland Coastal Plain Streams.- Evaluation of Three Experimental Low-Technology Approaches to Acid Mitigation in Headwater Streams.- Section IV Watersheds.- The Loch Fleet and Other Catchment Liming Programs.- Hydrochemical Budget Calculations for Parts of the Loch Fleet Catchment before and after Watershed Liming.- The Use of Simulation Models as Resource Management Tools for Restoring Acidified Waters.- Experimental Liming of Watersheds: an International Cooperative Effort between the United States and West Germany.- References.- Index of Authors.- Announcement.