00000nam 2200000za 4500 9.805863 CaOODSP 20221107135745 cr ||||||||||| 150406s2000 onc ob f000 0 eng d CaOODSP eng eng fre n-cn--- Fs70-1/2000-057E-PDF White, W. A review of the effectiveness and feasibility of alternate liming techniques to mitigate for acid rain effects in Nova Scotia [electronic resource] / Wesley White. Ottawa : Fisheries and Oceans Canada, 2000. 25 p. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/057 Includes bibliographical references. This paper is a summary of some techniques that may be applicable to liming acid rivers in Nova Scotia. It emphasises the preservation of Atlantic salmon habitat. Acid rain has eliminated salmon entirely from some rivers in Nova Scotia and reduced salmon production in many others. Controls on atmospheric emissions have produced less improvement than expected in the pH of Nova Scotia's rivers. As an interim measure, alkaline substances (lime) can be added to acidified surface waters to raise their pH. Once liming has been carried out, the higher pH can only be maintained by frequent or continual liming. This paper describes several methods of applying lime to lakes and rivers. The factors that affect efficiency of dissolution are discussed. Methods are described for calculating the required lime dose for each method of liming. The relative costs, efficiency and reliability of different liming techniques are compared. gccst Fisheries resources gccst Salt water fish gccst Lakes gccst Rivers gccst Acid rain gccst Fisheries management Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/057 (CaOODSP)9.507740 PDF 264 KB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-057-eng.pdf