Hawaiʻi is home to ʻoʻopu nākea ( Awaous stamineus ), a culturally significant, endemic, goby that exhibits an amphidromous life cycle characterized by a marine larval stage followed by post‐larval recruitment to streams, where they live to become reproductive adults. However, it was recently suggested that their migration to the ocean might not be obligatory, as originally thought. Despite their importance in Hawaiian traditi...