The Tropical Eastern Pacific is the oceanic region that stretches from the Gulf of California to Ecuador. The influence of different warm and cold ocean currents on the Equatorial area makes the existence of tropical, warm and cold water species possible. Additionally, the cold water welling up from the ocean depths carries a large quantity of nutrients up to the surface, giving rise to high productivity zones on the region of the Galapagos archipelago.
These conditions are, among other factors, those responsible for the wide biodiversity and the high presence of native and migratory endemic species in the region. Therefore, due to its exceptional universal value, its high level of biodiversity and its unique and irreplaceable marine ecosystems, seven groups of islands are catalogued here as World Heritage Sites by UNESCO.