Daniel J. Warren, MBA, PMP—President/Senior Project Manager

IMG_0756Daniel J. Warren has more than 30 years of experience in project/program and administrative management and supervision as well as operations management in natural resource areas.  Dan’s background is in fisheries biology and he is particularly knowledgeable about key technical and policy issues surrounding hatchery programs and operations.  He holds a Bachelors of Science in Fisheries Science and a Masters in Business Administration. Dan has worked on problem-solving and project development for numerous clients, including Native American tribes, federal agencies, and state fish and wildlife departments. He has extensive experience in technology, fisheries science, natural resources, and project and business management, including contracting, budget development and administration, finance, and accounting.  He is certified by the Project Management Institute as a Project Management Professional (PMP), and is certified in Agile Scrum management of software development.

Dr. Lars Mobrand, PhD—Senior Biometrician

lars-mobrandFor the last 40 years Dr. Lars Mobrand has led or been instrumental in developing numerous projects associated with hatchery programs and fisheries management throughout the Pacific Northwest. While serving as chair of the Hatchery Scientific Review Group, Lars guided the process for identifying actions to reform hatchery programs in the Columbia Basin to achieve conservation and harvest goals in both Puget Sound and the Columbia River Basin. Lars has also served as the scientific lead on the Northwest Power and Conservation Council’s congressionally mandated Artificial Production Review and Evaluation project, aimed at conducting a thorough review of all federally funded artificial production programs in the Columbia River Basin. Lars has directed the development of numerous simulation and decision support models including Ecosystem Diagnosis and Treatment (EDT) and the “All-H” Analyzer (AHA) which analyzes salmon production in terms of harvest, hatchery output, habitat, and the effects of hydroelectric systems. He also led the analysis to determine the effects that hatchery programs have on endangered Chinook salmon populations in Puget Sound. Lars is adept at facilitating communication between stakeholder groups, as he did in his role as the project manager for the Multi-Species Framework Project, which fostered development of a regional vision for the Columbia River Basin.

Kevin Malone—Senior Fisheries Biologist

Malone_websiteKevin Malone has been working on Northwest fisheries issues for over 25 years. His background includes extensive experience evaluating the effects of hatchery operations on Endangered Species Act-listed salmon stocks and other native fish species, fish passage at Columbia River dams, habitat modeling, fish population monitoring, and reporting required by the Northwest Power and Conservation Council.  Kevin works on NPCC Master Plan projects, and provided technical assistance to the Hatchery Scientific Review Group during their review of all Columbia River and Puget Sound salmon hatcheries.  He was the lead scientist responsible for completing the Southeast Washington Snake River Recovery Plan, and worked on the Mitchell Act environmental impact statement for the National Marine Fisheries Service.  In addition, he has worked extensively with the Ecosystem Diagnosis and Treatment tool (a tool for ecosystem management and habitat planning) along with the “All H” Analyzer.

Andy Appleby—Senior Fisheries Biologist

AndyApplebyStaffPhotoAndy Appleby joined D.J. Warren Associates after a 32-year career with the Washington Department of Fish and Wildlife.  Before joining DJWA, Andy was the WDFW hatchery reform coordinator for the State of Washington and led hatchery evaluations and reform and has overseen the development of over 170 hatchery and genetic management plans. Andy has co-authored peer-reviewed articles on rearing and release techniques, genetics research, and new technology and presented research results at numerous professional conferences.  He has experience in hatchery performance, analysis of lost catch associated with hatchery closures, hatchery stock transfer guidelines, and spawning guidelines. Andy has extensive public speaking experience, having presented on salmon and steelhead biology, ecology, domestication, hatchery practices, the use of hatchery and genetic management plans, and the effects of the Endangered Species Act on hatchery operations with groups including schools, legislative committees, international conferences, and the general public.

Jeannie Heltzel, MS—Biometrician


Jeannie joined D.J. Warren & Associates in April 2013. She has more than 15 years of experience working for natural resource agencies in the Pacific Northwest and Alaska, including the North Pacific Fishery Management Council, U.S. Geological Survey, and the Alaska Department of Fish and Game. Her experience includes working with federal and state fisheries and wildlife agencies to evaluate the effects of complex fisheries management projects on endangered species and other resources. Jeannie has a BS in Fisheries and Wildlife and a MS in Statistics from Oregon State University, and a MS in Biology from University of Louisiana. She has worked with agencies to monitor fish and wildlife populations and analyze the effects of management actions on fish and wildlife resources in riparian, forest, and marine habitats. She has co-authored peer-reviewed articles on ecosystem-based management of marine fisheries, nest success of riparian songbirds, avian sampling methods, and ungulate and waterfowl ecology. Recent projects include modeling the relationship between stream temperatures and the occurrence of bull trout in the Klamath Basin.

 Mark LaRiviere, MS—Senior Fisheries Biologist

Mark joined DJ Warren & Associates, Inc. in July 2016.  Mark has been involved with Pacific Northwest fisheries since 1973.  He has over 35 years of experience that has included work and involvement with agencies, tribes and utilities in the Pacific Northwest and Alaska.  Before joining DJWA he was the lead fisheries biologist for the largest hydropower project in Tacoma Power’s portfolio.  Mark has conducted fisheries research, participated in hydropower environmental assessments, secured project permits and implemented FERC license requirements.  Mark has technical expertise in freshwater and marine fisheries; with particular emphasis in the areas of salmonid culture, upstream and downstream fish passage, fish habitat evaluation and natural resource management planning.  Mark has both a BS and MS in Fisheries from the University of Washington.  He is a certified scuba diver who has conducted research in Puget Sound and Alaska, an avid saltwater salmon fisherman, and a USCG licensed captain.