Potential use of environmental DNA for genetic and ecological monitoring of dolphins, whales, and dugongs in Thailand: Implication for conservation planning

Marine mammals are severely threatened by human disturbance, however baseline distribution data are limited; thus it is difficult to prioritize coastal areas for protection. Integration of environmental DNA with observation-based surveys can improve species detection and facilitate monitoring. We aim to (1) develop eDNA-based surveys and molecular techniques to detect and characterize community composition of ten marine mammals in Thai waters, (2) apply occupancy modelling to investigate factors affecting eDNA persistence under varying environmental conditions, and (3) identify conservation priority sites. We envisage eDNA-based monitoring will strengthen research capacity and promote incorporation of biotechnology into marine ecosystem management and conservation.