A sediment record of trophic state change in an Arkansas (USA) reservoir

• DOI: 10.1007/s10933-013-9762-2
• Publication Date: 2013-12-31T11:15:37Z
• Authors: Byron Winston; Sonja Hausmann; Jaime Escobar; William F. Kenney
• Keywords: 0106 biological sciences; 13. Climate action; 01 natural sciences

Reservoir sediments are used cautiously in paleolimnological studies because of dating uncertain- ties, possible sediment disturbances and even concerns that indicators of trophic status may behave differently in reservoirs as opposed to natural lakes. We measured loss on ignition (LOI), carbon to nitrogen ratio (C:N), diatom abundance, total nitrogen (TN), total phosphorus (TP), TN:TP ratio, and carbon and nitrogen isotopes (d 13 Ca ndd 15 N) in an 83-cm sediment core to track