Marañón River Basin
Just one eDNA survey can yield surprisingly rich results. In collaboration with WWF Peru, NatureMetrics analysed eDNA samples from 40 sites along the Marañón River Basin to check for the presence of river dolphins, Amazon manatees and migratory catfish. The analysis showed that many catfish species were present throughout the river, Amazon manatees at 12 sites, and river dolphins in all lowland sites. The study also detected the presence of more than 155 mammals, including the rarely observed night monkey and kinkajou, 74 amphibians, 65 birds and 6 reptiles.