Is lake mead oligotrophic

Lake Mead is generally considered a mesotrophic to eutrophic lake, rather than oligotrophic. Oligotrophic lakes are characterized by low nutrient levels and high oxygen content, typically supporting fewer aquatic plants and animals. In contrast, Lake Mead has experienced fluctuations in nutrient levels due to factors like runoff and water management practices, leading to increased productivity in some areas. Therefore, it does not fit the criteria for being classified as oligotrophic.