Western Washington Fish and Wildlife Conservation Office
Pacific Region



The Western Washington Fish and Wildlife Conservation Office (WWFWCO) conducts monitoring and scientific evaluation for fish and other aquatic species and their habitats in Puget Sound, Coastal Washington, and the Chehalis River Basin. Biologists and technicians in our office focus on the conservation and management of Pacific salmon and steelhead, as well as other species including bull trout, Pacific lamprey, Olympic mudminnow, and freshwater mussels. The WWFWCO is located in Lacey, WA and is part of the Puget Sound/Olympic Peninsula Fisheries Complex.


Elwha River weir (Photo: USFWS)

Hatchery Evaluation

We work with hatchery staff and tribal partners to evaluate hatchery programs at the three National Fish Hatcheries in our Complex; Quilcene, Makah, and Quinault. Data collected from these efforts is used to better manage our National Fish Hatcheries which provide salmon and steelhead for harvest and recreational opportunities.

Elwha River weir (Photo: USFWS)

Population Assessment

Our staff work with our partners across Western Washington to conduct scientific monitoring and evaluation for a number of fish species and other aquatic organisms. These efforts help monitor the status of threatened, endangered, and sensitive species, evaluate the effects of urbanization on fish populations, and prioritize conservation and recovery efforts.

Elwha River weir (Photo: USFWS)

Fishery Management Assistance

We provide data and technical expertise to multiple fishery management forums. We help curate and report regional coded-wire-tag data for USFWS, evaluate the impacts of coastwide salmon fisheries, and help develop fishery management recommendations.

Elwha River weir (Photo: USFWS)

Habitat Restoration

Our office manages two aquatic habitat restoration programs: the National Fish Passage Program and the Chehalis Fisheries Restoration Program. WWFWCO staff also conduct monitoring studies to evaluate the effectiveness of aquatic habitat restoration projects.


Click here for a list of WWFWCO reports and publications.


Elwha River weir (Photo: USFWS)














Staff members may be contacted by phone or email from the directory table below. To see staff bios, scroll past this table or select staff by name.

David Teuscher Project Leader  
Email link to Denise Hawkins
Carol Mitchell Administrative Assistant  
email link to Carol Mitchell
Carrie Cook-Tabor Fish Biologist Pacific Salmon Commission / Data Analysis
email link to Carrie Cook-Tabor
Benjamin Cross Fish Biologist Hatchery Monitoring and Evaluation
email link to Benjamin Cross
Jeffery Johnson Fish Biologist White and Elwha River Projects
email link to Jeffery Johnson
Roger Peters Fish Biologist Salmon and Bull Trout Ecology Studies
email link to Roger Peters
Miranda Plumb Fish Biologist Fish Passage, Pacific Lamprey and the Chehalis Restoration Program
email link to Miranda Plumb
Roger Tabor Fish Biologist Fish Ecology Studies
email link to Roger Tabor
Yvonne Dettlaff Fish & Wildlife Biologist Hatchery Monitoring and Evaluation
email link to Yvonne Dettlaff
Keith Sweeney Biological Science Technician Fish Marking & Evaluation
email link to Keith Sweeny
Michael Elam Biological Science Technician Hatchery Evaluation
email link to Michael Elam
Gregory Byford Biological Science Technician Various
email link to Gregory Byford

Elwha River weir (Photo: USFWS)

David Teuscher

Dave Teuscher has been our project leader since May of 2019. Dave came to the USFWS after 24 years with Idaho Fish and Game where he held many research and management positions. Dave also worked for Montana Fish Wildlife and Parks and the Shoshone-Bannock Tribes. His work experience has focused on restoring salmon and native cutthroat trout populations, protecting fish and wildlife habitats, studying competition and predation interactions, and creating new fishing opportunities. Dave played basketball for Utah State University, enjoys outdoor volleyball, and hunting pheasants with his German Shorthaired Pointer “Buddy”.

Elwha River weir (Photo: USFWS)

Carol Mitchell

Carol Mitchell has been the administrative assistant for the FWCO since 2009. Prior to coming to the USFWS, she served for 21 years in the Army operating tugboats and landing craft on both coasts of the US and abroad. Carol has a BS in ecology. She enjoys hiking and camping, gardening, and volunteers with local environmental groups monitoring plants and birds in the South Puget Sound prairies and Mount Rainier National Park.

Elwha River weir (Photo: USFWS)

Carrie Cook-Tabor

Carrie Cook-Tabor is a Fish Biologist at the WWFWCO. She has worked for USFWS since 1990. Prior to coming to WWFWCO she worked briefly at the USFWS Arcata Fish and Wildlife Office in Northern California and the USFWS Fish Health Center in Olympia, WA. Carrie's background is in hatchery and harvest management assessment, modeling, and biostatistics. She has a bachelor’s degree from Humboldt State University and a master’s degree from the University of Washington.

Elwha River weir (Photo: USFWS)

Benjamin Cross

As a Supervisory Fish Biologist, Benjamin Cross focuses on hatchery monitoring and evaluation as part of a team at the WWFWCO. He worked for several federal and tribal government agencies prior to onboarding with USFWS in 2018. Benjamin has a B.S. from North Dakota State University, M.S. from University of Wisconsin–Stevens Point, and Ph.D. from Washington State University. His research interests include salmonid habitat, population, and carrying capacity assessments.

Elwha River weir (Photo: USFWS)

Jeffery Johnson

Jeffery Johnson is currently a Fish Biologist on the Population and Habitat Assessment Team at the Western Washington FWCO. Jeff has worked for the WWFWCO since 2017. Prior to his current position, Jeff studied fish at the University of Idaho and Oklahoma State University. Jeff grew up in Western Washington and describes his current position as his “dream Job”.

Elwha River weir (Photo: USFWS)

Roger Peters

Roger Peters is a Supervisory Fish and Wildlife Biologist at the WWFWCO. He has worked at this office since receiving his PhD from the University of Washington in the mid 1990’s. His background is in monitoring stock and habitat restoration efforts.

Elwha River weir (Photo: USFWS)

Miranda Plumb

Miranda comes to us from a quaint little town in Vermont, through MT with a stop at the University of Montana for a bachelor’s degree in Wildlife Biology, and on to Alaska for a Master’s in Fisheries from the University of Alaska. Miranda has worked for the USFWS since 1999. Her focus at the WWFWCO is aquatic habitat restoration and assessments with an emphasis on Pacific Lamprey and freshwater mussels.

Elwha River weir (Photo: USFWS)

Roger Tabor

Roger Tabor is a Fish Biologist at the Western Washington FWCO, a position he has held since 1991. He has mostly worked on fish ecology projects in the Lake Washington basin including habitat and predation studies of juvenile salmon. Roger also works on nongame species including sculpins and Olympic mudminnow. Roger is an avid photographer of freshwater fauna. Roger has a bachelor’s degree from Colorado State University and a master’s degree from Utah State University.

Elwha River weir (Photo: USFWS)

Yvonne Dettlaff

Yvonne Dettlaff has worked in this office for over 15 years. She started her federal career working for the Forest Service and Pacific States Marine Fisheries Commission. Yvonne is like a fish CPA, as she tracks the number of fish released from or returning to federal hatcheries. Yvonne also secures needed hatchery permits. Yvonne received her science degree from Humboldt State University and went on to study herpetology at UC Berkeley. When not at work, she is usually at home tending to her farm or working on a 90-year-old shack she calls home.

Elwha River weir (Photo: USFWS)

Keith Sweeney

Keith Sweeney has been a Biological Scientific Technician at Western Washington FWCO since 2007. His job duties include supervising marking trailers in the spring, sampling adult salmonids in the fall, and assisting with necessary projects in between. Keith has a B.S. in Environmental Biology and Zoology from Eastern Washington University. Keith’s interests are ecosystem dynamics and supporting local sports, GO HAWKS!!!

Elwha River weir (Photo: USFWS)

Michael Elam

Michael is a Biological Science Technician with the WWFWCO Hatchery Monitoring and Evaluation team. His responsibilities include supervising marking and tagging at three hatcheries and leading the biosampling program. After serving 23 years in the US Navy as a Hospital Corpsman and Preventive Medicine Technician, Michael earned a B.S. in Aquatic and Fishery Sciences from the University of Washington. Research interests include fish habitat, migration, and carrying capacity assessments; and recreational and artisanal fisheries.

Gregory Byford staff photo (Photo: USFWS)

Gregory Byford

Greg Byford is the new Biological Science Technician with the WWFWCO. He received his B.S. and M.S. degrees from the Department of Fisheries and Wildlife at Michigan State University. During his time at MSU, Greg worked on a variety of research projects in the Great Lakes region including using pheromones to control invasive sea lamprey, the rehabilitation of Lake sturgeon at a streamside hatchery, diet studies of salmonids and tracking the invasion of red swamp crayfish. Greg enjoys exploring the outdoors in all capacities, even more so with a fishing rod in hand.

For their contributions to the region’s centralized hatchery database (FINS), Carrie Cook-Tabor and Yvonne Dettlaff received the Region’s 2019 Data Champion Award which includes the prestigious Pacific Region Employee Recognition Coin..

Award (Photo: USFWS)













Western Washington Fish & Wildlife Conservation Office

510 Desmond Drive SE

Lacey, WA 98503


Office Phone: 360 753-9440






Last updated: February 19, 2021