Limnology and Oceanography, Vol. 54, No. 4 (Jul., 2009), pp. 1403-1411 (9 pages) This study investigated the bulk nitrogen isotopic composition and fractionation of marine and freshwater cyanobacteria ...

nitrogen and mercury from urban and agricultural sprawl. The lake in particular has been besieged by nutrient pollution for decades, causing unprecedented blooms of blue-green algae. Also known as ...