The Moorea Coral Reef Long Term Ecological Research Site (MCR LTER) is the complex of coral reefs and lagoons that surround the island of Moorea in French Polynesia. The project, funded by the US National Science Foundation (NSF), is a partnership between the University of California Santa Barbara and California State University, Northridge that includes additional researchers from UC Davis, UC Santa Cruz, UC San Diego and the University of Hawaii. Field operations are conducted from the UC Berkeley Richard B. Gump South Pacific Research Station (UCB Gump) on Moorea.
The Moorea Coral Reef LTER is part of the National Science Foundation's Long Term Ecological Research (LTER) Network, established by the NSF in 1980 to support research on long-term ecological phenomena. The Moorea Coral Reef LTER became the 26th site in the LTER network in September of 2004.