ISSN 0258-2244 March/April 2010 Volume 9 No 2 CatCh and release leaving sa fish stressed Sea Water-210x297-afrique du sud:Mise en page 1 18/12/08 18:44 Page 1 www.degremont.com SEA WATER: SOURCE OF REUSE LIFE. Degrémont's membrane filtration technology is suitable for the whole range of treated wastewater uses, from agriculture and landscaping to industry and many others. Already valued by farmers and industries, the clean water produced by this demanding process makes a major contribution to water conservation and environmental protection. DESALINATION Degremont draws its desalination experience from its portfolio of more than 250 reverse osmosis plants © Les Éditions Stratégiques around the world. The process removes mineral salts by forcing water to cross a semi-permeable membrane. With the growth in world demand for drinking water - and with 40% of the world's population living within 100 km of the sea - this technology offers a sustainable solution for the supply of potable water. FOR THIS & OTHER DEGRÉMONT’S WATER TREATMENT PLANT EQUIPMENT, CONTACT : MAITE BERNARD, Commercial Manager
[email protected] MORNAY DE VOS, Business Develop. Mg
[email protected] Tel: +27 (0) 11 807 1983 Fax: +27 (0) 11 807 4118 www.degremont.edx.co.za THE WATER TREATMENT PLANT SPECIALISTS Table of contents 3 letters 4 upfront 6 AquAtic species conservAtion 14 ISSN 0258-2244 March/April 2010 Volume 9 No 2 First SA study on stress levels of caught and released fish WAter History 18 Wemmershoek – 75 years in the making Groundwater mAnAGement 24 New strategy to light path for sustainable groundwater use WAter netWorks 26 Hundreds gather for first young water professionals conference in Africa CatCh and release leaving sa fish stressed comment And opinion 29 Is water the new oil? Cover: Is catch and release angling placing undue stress on our yellow WAter kidz 32 fish? (See page 14) Rivers: Life-giving veins of the Earth Original oil painting by Barry Jackson.