Anthropogenic eutrophication of Lake Titicaca (Bolivia) revealed by carbon and nitrogen stable isotopes fingerprinting
Highlights C and N stable isotopes were measured in four compartments of Lake Titicaca. Anthropogenic discharge affects baseline C and N isotope signatures. C recycling from soil, anthropogenic and lacustrine sources affect the δ13C signature. δ15N signatures track anthropogenic contamination independently of plant type. Decreased anthropogenic contribution in the bay assessed by isotope mixing model. […]