Lake Ilmen is one of the most productive lakes in northwestern part European Russia. The purpose study was to assess trophic status period 2003–2020 based on two different indicators. index (ITS) calculated from hydrochemical indicators: pH value and percentage water saturation with oxygen. other indicator average annual concentration total phosphorus. Interannual ITS values for 2003 2020 were ...

1 Summary Farmington Bay covers 94 mi 2 (260 km 2) in the SW corner of the Great Salt Lake, and is essentially a separate lake because it is enclosed by Antelope Island and a causeway leading to the island from the mainland. The bay has received wastes from the adjoining Salt Lake City metropolitan area for decades. Because of water quality concerns for Farmington Bay, the Aquatic Ecology Labor...

Abstract Background and purpose: Eutrophication is one of the major environmental problems in waterways causing substantial adverse impact on domestic, livestock and recreational use of water resources. Aras Dam, Iran which provides Arasful city with drinking water, has chronic algal blooms since 1990. Levels of up to 900,000 cells/mL of toxic cyanobacteria (mainly Anabaena and Microcystis) hav...