PROCESS FOR INHIBITING EUTROPHIZATION OF LIVING WATERS FIRST OF ALL DEEP-WATER LAKES

摘要

To prevent entrification of deep waters such as lakes and former quarries, to adjust their phosphorus and oxygen levels, and to restore and/or maintain their biological equilibrium. - (1) The size of fish stocks is greatly increased. Introduced fish are fed on algae, grown solely in these waters. Algal growth is supported at required times by continuous addn. of nutrients. Stocks are selectively fished and/or new stocks are introduced to maintain permanent levels of fish. Periodical adjustment of concns. of algae ensures that their levels are also constant