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The Kejimkujik Watershed Study (KWS) was initiated in 1978 in response to growing concerns about the possible harmful effects on the environment of long range transport of air pollutants, particularly acid rain. It is one of five calibrated watershed studies in Canada that represent a range of climatic conditions, terrain sensitivities, and rates of atmospheric acidic deposition. This report presents the proceedings of a workshop on the study, covering programs and concepts in integrated monitoring and research; monitoring global change; research and monitoring in and around Kejimkujik National Park; monitoring and research of surface waters, lakes and streams, and forests and watersheds; and the organization and interpretation of Kejimkujik research station establishment. Summary reports are given on watershed studies in the Experimental Ponds Area of Newfoundland, the Integrated Forest Studies Cooperative in Vermont, and the Humic Lake acidification experiment in Norway. Highlights of an open discussion on future activities are also included.
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
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The Mersey Fish Culture Station is located on the Mersey River which drains to the southwest coast of Nova Scotia. The river is acidic, dark brown in colour, lacks acid-neutralizing capacity, has a low calcium concentration and an elevated concentration of total dissolved aluminum. Water for the fish station is withdrawn at a 2 m and a 9 m intake at the Big Falls headpond. Salmon parr were exposed to water withdrawn from the bottom of the Big Falls headpond from mid-June 1988 until mortalities began to occur on August 12. At that time, increasing volumes of surface water were mixed with the bottom water so that by August 25 only surface water was provided to the parr. This report describes the attempts made to determine the cause of the mortalities.