Background:
Oceanic manta rays are classified as Endangered by the IUCN due to global population declines. Their vulnerability stems from slow reproductive rates, wide-ranging movements, and heavy fishing pressure. While their presence in the Eastern Tropical Pacific has been documented for nearly two decades, knowledge of manta rays in the West and Central Pacific is only now emerging. In 2022, Manta Trust used satellite tags to record an oceanic manta migrating over 1,900 km from New Zealand to southern Fiji and Tonga—the longest migration recorded for this species. This suggests oceanic manta rays may cross the entire South-West Pacific, although much remains unknown about their migratory pathways, habitat use, and population sizes.
Mission:
This project will improve the understanding of habitat use and population connectivity of oceanic manta rays in the West and South Pacific. Manta Trust will also engage coastal communities in the conservation of this species to enhance awareness of protective measures needed to revive populations.
Research Impacts & Applications:
This research will inform conservation policy by identifying critical habitats and connections between manta ray populations and will support species management by providing new insights into manta ray movements, behavior, and population structure. The project will also engage coastal communities to raise awareness and encourage local stewardship.
