Luke leads ESA’s Northwest Fisheries Program of fish biologists and ecologists, focused on planning, permitting, and monitoring aquatic habitat restoration and land management projects. He and his team are well-versed in the Endangered Species Act, National Environmental Policy Act, Clean Water Act, and local and state permit documentation.

He is a Certified Ecological Restoration Practitioner and a fish habitat mitigation specialist, with more than 12 years of experience as an interdisciplinary scientist working in freshwater and estuarine systems with an emphasis on stream assessment field methods, salmon biology, restoration prioritization, and watershed management planning. His background in aquatic ecology and conservation biology is well suited for research, project management, and community engagement on a range of restoration, transportation, and utility projects throughout the Pacific Northwest.