A review of the effectiveness and feasibility of alternate liming techniques to mitigate for acid rain effects in Nova Scotia / Wesley White. : Fs70-1/2000-057E-PDF

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.

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publications.gc.ca/pub?id=9.805863&sl=1

Renseignements sur la publication
Ministère/Organisme Canada. Department of Fisheries and Oceans.
Canada. Canadian Stock Assessment Secretariat.
Titre A review of the effectiveness and feasibility of alternate liming techniques to mitigate for acid rain effects in Nova Scotia / Wesley White.
Titre de la série Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/057
Type de publication Série - Voir l'enregistrement principal
Langue [Anglais]
Format Électronique
Document électronique
Note(s) Includes bibliographical references.
Information sur la publication Ottawa : Fisheries and Oceans Canada, 2000.
Auteur / Contributeur White, W.
Description 25 p.
Numéro de catalogue
  • Fs70-1/2000-057E-PDF
Descripteurs Fisheries resources
Salt water fish
Lakes
Rivers
Acid rain
Fisheries management
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