Korean lakes differ from other temperate counterparts because they are artificially constructed reservoirs and experience an annual hydrologic cycle dominated by a summer monsoon (JONES et al. 1997, 2003, KIM et al. 2001). In this paper we describe how the monsoon influences the general limnology of Juam Lake, South Korea, as a contribution to the growing body of information on processes and se...

The role of greenhouse gas emissions (GHG) from freshwater reservoirs and their contribution in increasing atmospheric GHG concentrations is actually well discussed worldwide. The amount of GHGs emitted at the air-water interface of reservoirs varies over time. The maximum is attained within 3 to 5 years after impoundment. In reservoirs older >10 years in boreal and semi-arid regions, GHG emiss...

888 PERSPECTIVES as much terrestrial carbon is received by inland waters as reaches the world's oceans (11). Calcareous catchments also release considerable carbon to lakes as bicarbonate and carbonate. In total, inland waters may bury about four times as much carbon as do the oceans (10). Much of the organic carbon received by lakes is mineralized and emitted to the atmosphere as carbon dioxid...

The deoxygenation of the hypolimnia of lakes and reservoirs normally occurs as a combined result of the sediment oxygen demand and the oxygen demand of the algae and other plant materials that grow in the epilimnion. For some waterbodies, there may be appreciable amounts of oxygen-demanding material brought in from the watershed, but this is usually a relatively unimportant source of oxygen dem...

Word count: 149 words) 1. Fish-based indices of biotic integrity (IBI) have been developed for many lotic systems but remain scarce for lakes. The goal of the present study was to assess the responses of lentic fish assemblages to anthropogenic pressures when environmental variability was controlled for, and to compare them between French natural lakes and reservoirs. 2. Environmental features,...