The proportions of lakes categorized as oligotrophic, mesotrophic, eutrophic, and hypereutrophic for the presettlement time period were not significantly different from the proportions found in 2007.

For humans, the oligotrophic state—in which the water has submerged vegetation and allows swimming and water sports—is the ...

Vertical distributions of both concentrations and stable isotopic compositions of nitrate, including the 17O-excesses (Δ17O), were determined four times during 1 yr within the mesotrophic water column ...

In eutrophic lakes, zooplankton communities often shift towards smaller-bodied species that are less rich in phosphorus than larger species that tend to dominate temperate lakes. This reduces the ...

The presence of very high amounts of nutrients, or hypereutrophic levels, coupled with the government's decision to allow the lake's wetlands to be drained for agriculture, bred a toxic stew of ...

The presence of very high amounts of nutrients, or hypereutrophic levels, coupled with the government's decision to allow the lake's wetlands to be drained for agriculture, bred a toxic stew of ...