From rookeries to foraging grounds: understanding regional connectivity and genetic diversity in hawksbill turtles

This study investigated the genetic structure, diversity, and migratory patterns of hawksbill turtles ( Eretmochelys imbricata ) from two nesting locations in Papua New Guinea (PNG) using mitochondrial DNA (mtDNA) sequencing satellite telemetry. Tissue samples collected female (n=75) PNG revealed a total 6 haplotypes Conflict Group site 5 Kavieng site, with significantly differing one another all other known Asia-Pacific stocks. finding expands our understanding stock structure region, resulting 9 Management Units (MUs) now published. Satellite tracking 15 that individuals migrated westerly towards foraging areas eastern Australia (93%) (7%). With mean migration path distance 1241 ± 108 km, three distinct strategies were used by 10 made it to their grounds I) Torres Strait, II) Far North Queensland, III) western waters. A broad scope home-range sizes (95% UD) used, comparison studies further postulates hawksbills are connected non-specific associated food source availability. provides for first time essential insights into turtle population connectivity Pacific highlighting importance effectively conserving managing this critically endangered species as Furthermore, we make recommendations national regional conservation transboundary management ensure long-term survival recovery Pacific’s populations.