Eels are a highly valued fishery, particularly among Māori peoples, and a crucial indicator of environmental health. However, spawning sites and larval dispersal routes of Aoteoroa-New Zealand longfin (Anguilla dieffenbachii) and shortfin (A. australis schmidtii) eels remain unknown. This project aims to model the migration routes and spawning sites of these taonga taxa and assess their vulnerability to climate change by analyzing eDNA and testing a new eDNA sampling device.