The vulnerable Amazonian manatee is most often found where human activity is low, with a new eDNA-based method most commonly detecting the freshwater mammal in the remote western Amazon
image:
Romoser taking a water sample adjacent to Ilhas das Onças near the city of Belém.
view moreCredit: Kaitlyn Romoser, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
Article URL: https://plos.io/4pYyIZW
Article title: Survey of vulnerable Amazonian manatees using environmental DNA (eDNA): A method for survey in remote field settings
Author countries: U.S., Brazil
Funding: Donation to the International Sportfish Fund from the estate of George and Carolyn Kelso (KR and KOW), and a productivity research fellowship from the Brazilian National and Technological Development Council—CNPq: IPF (CNPq #316531/2023-5), and TH (CNPq #316532/2023-1).
Journal
PLOS One
Article Title
Survey of vulnerable Amazonian manatees using environmental DNA (eDNA): A method for survey in remote field settings
Article Publication Date
4-Feb-2026
Anthropological influence on manatee eDNA detection. Manatee DNA detections in the three regions based on distance from anthropological influence. Twenty-one samples were detected in rural or protected areas and eight were detected in urban areas. Rural and urban categories were determined by overall amounts of boat traffic, settlements, and pollution in each sample area.
Credit
Romoser et al., 2026, PLOS One, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
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