Download or read book Acidification Status of Rivers in Several Regions of Nova Scotia and Potential Impacts on Atlantic Salmon written by Gilles Lucien Lacroix and published by St. Andrews, N.B. : Fisheries and Oceans Canada. This book was released on 2005 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of pH variation throughout eight river systems in three regions of Nova Scotia was completed to evaluate the potential impacts on Atlantic salmon. Sampling at 428 sites on seven occasions during a one year period provided a high level of resolution in pH distribution within each system and throughout the year,'Rivers were either chronically acidic (near minimum pH at all times) or episodically acidic (minimum pH from November to March). Low pH episodes followed increased rainfall, and they were usually correlated with increased dissolved organic carbon concentrations with some regional exceptions where low pH episodes were not correlated with the flushing of organic acids. Minimum pH was 5.0 in 80-90% of sites in five of the river systems indicating that they had little habitat where salmon would survive acid episodes. Minimum pH was 5.0-5.5 in 30-40% of sites and 5.5 in about 4540% of sites in the three other systems which were considered to be responsible for much of the salmon production within the regions surveyed. However, minimum pH during acid episodes was low enough to limit salmon survival In at least 35-50% of sites in the three least affected systems. The survey indicated that a high degree of both spatial and temporal resolution in pH distribution in a river is required to accurately assess potential acidification impacts on salmon populations

Download or read book 1997 Canadian Acid Rain Assessment written by Dean Stuart Jeffries and published by . This book was released on 1997 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acid Rain CZMA written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Oceanography and published by . This book was released on 1982 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acidic Deposition and Aquatic Ecosystems written by Donald F. Charles and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acidic deposition and its effect on aquatic ecosystems have become major scientific and public policy issues in the United States since the early 1970s, and many diverse studies have been completed. This book is the first comprehensive, integrated synthesis of available information on current and potential effects of acidic precipitation on lakes and streams in geographic regions with a high number of low-alkalinity surface water from the Adirondacks and the Southern Blue Ridge to the Upper Midwest to the Rocky Mountains, the Sierra Nevada, and the Cascades. Written by leading authors, the book examines the current status of water chemistry and characterizes the processes controlling water chemistry on a regional basis by using and comparing high-quality data sets. Methods for the assessment of long-term changes in water chemistry and their effects in fish and other biota are also presented. The book amply illustrates the substantial diversity among geographical regions with respect to the nature of surface waters and the complexity of their response to acidic deposition. This volume will be of great interest to researchers in limnology, aquatic ecology, environmental chemistry, hydrology, and atmospheric sciences. It will also serve as an important reference for environmental managers and policy makers.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acid Precipitation written by and published by . This book was released on 1986 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liming of Acidified Surface Waters written by Lennart Henrikson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acidification is one of the most serious environmental problems - especially in Sweden, which suffers most from the consequences of acid rain. Besides international negotiations to reduce sulphur emissions - 85% of the acid load on Sweden can be traced to emissions from outside the country itself - the Swedish Government has employed large-scale, operative liming activities to counteract acidification of surface waters. The scientific results show that - although acidification cannot be solved by liming alone - the measures taken resulted in substantial improvements to around 8,000 Swedish lakes and watercourses. The idea is that other countries affected by acidification may also profit from this experience.

Download or read book Inventory of research under the National Acid Precipitation Assessment Program written by United States. Interagency Task Force on Acid Precipitation and published by . This book was released on 1984 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Water Acidification in the ECE Region written by Kirsi Merilehto and published by Nordic Council of Ministers. This book was released on 1988 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Miljørapport 1988:14

Download or read book The Sea Has Many Voices written by Dalhousie University. School for Resource and Environmental Studies and published by McGill-Queen's Press - MQUP. This book was released on 1994 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sea Has Many Voices is the first Canadian book to examine oceans policy in the making. The contributors believe that Canadian oceans policy making to date has been reactive, susceptible to pressure from special interest groups, and lacking in continuity or consistency.

Download or read book Cooperative Technology Assistance Program written by and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interim Assessment Effects of acidic deposition written by and published by . This book was released on 1987 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Technical Report of Fisheries and Aquatic Sciences written by and published by . This book was released on 2005 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report INT written by and published by . This book was released on 1972 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology and Management of Atlantic Salmon written by D. Mills and published by Springer Science & Business Media. This book was released on 1991-09-30 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: From reviews of the hardback edition:- No matter how experienced a salmon man the reader is, I cannot believe he will study this extremely informative book without learning a great deal and gaining much enjoyment from doing so.The biology and life of the salmon . . .are all dealt with in a most interesting manner . . .Highly recommended. A book not to be read just once, but often to be consulted.; This book is dedicated to Salar the Salmon and what a tribute it is to this unique fish. Supporters of the Trust would be wise to purchase this book and to keep it on the shelf for future reference. - Atlantic Salmon Trust Progress Report

Download or read book Acid Rain 1983 written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 1983 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Operating Research Plan written by United States. Interagency Task Force on Acid Precipitation and published by . This book was released on 1984 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: