thass's picture
Affiliate Assistant Professor, School of Marine and Environmental Affairs; Program Manager, Puget Sound Partnership


Ph.D. Biology (1997). University of North Carolina at Chapel Hill

B.S. Zoology (1989). Graduated with College Honors, Honors Program, University of Washington, Seattle


Research Interests

Coastal and pelagic ecology · climate change, modeling and policy · maritime traffic risk assessment · oil spill prevention policy · citizen science · social marketing · tarheel basketball · ornithology


Web Media

High Country News -

Seattle Times -


Recent Publications

Hass, T, J. Hyman and B.X. Semmens. 2012. Climate change, heightened hurricane activity, and extinction risk for an endangered tropical seabird, the Black-capped Petrel Pterodroma hasitata. Marine Ecology Progress Series 454: 252-261. View a PDF of the article here.

Improving Oil Spill Prevention and Response in Washington State: Lessons Learned from the BP Deepwater Horizon Oil Spill. 2011. Joint Report of Washington Department of Ecology and Puget Sound Partnership. 19 pages.

Hass, T. and J.K. Parrish. 2006. BEACHED BIRDS: A COASST Field Guide to the North Atlantic. 165p. Wavefall Press, Seattle.

Hass, T. and J.K. Parrish. 2002. BEACHED BIRDS: A COASST Field Guide. 2nd Edition, Wavefall Press, Seattle.


Teaching & Advising

Fully responsible for all aspects of course development, instruction and assessment for the following classes, ranging in enrollment from eight to more than 200 students:

University of Washington, Seattle

Lecturer, Biology (2000-06)

BIOL 477 - Marine Conservation (Summer 2006)

BIOL 120 - Current Controversies (Summer 2006)

BIOL 356 - Foundations in Ecology (Fall 2004; Spring 2005)

BIOL 476 - Conservation Biology (Summer 2000, 2002-05; Co-taught Fall 2005)

BIOL 203 - Introductory Biology (Co-taught Spring 2000)

Undergraduate Research Advisor, Depts. of Zoology, Biology & Fisheries (2000-05)

BIOL 499 & FISH 499 - Undergraduate Research (Supervised 1-2 students most quarters, 2000-05)

University of Washington, Bothell

Lecturer, Interdisciplinary Arts & Sciences (2005-2006)

BES 312 - Ecology (Winter 2005)

BIS 390 - Ecology and the Environment (Spring 2005 & 2006; Winter 2006)

BIS 358 - Issues in Environmental Science (Fall 2005)


Professional Service & Committee Membership (active in bold)

Burke Museum of Natural History & Culture (Affiliate Curator of Ornithology, 2009-present) 

Science Committee, Seattle Audubon Society (Science Committee Member, 2003-present)

Washington Ornithological Society (Editorial Board, 2000-present)                      

Puget Sound Harbor Safety Committee (Member, 2012-present)

Puget Sound Vessel Traffic Risk Assessment Steering Committee (Co-chair, 2012-present)

Washington State Oil Spill Rule Advisory Committee (Member, 2012)

Puget Sound Nearshore Ecosystem Restoration Project Implementation Team and Steering

Committee (Member, 2011-present)

Puget Sound Partnership Oil Spill Work Group (Facilitator/Staff Lead, 2010-present)

Northwestern Atlantic Marine Bird Conservation Cooperative, Atlantic Coast Joint Venture (Member, 2007-present)

Washington State Ocean Caucus (Member, 2007-present)

Oil Spill Communications Work Group for Northwest Area Committee and Regional Response Team (Chair, 2009-10)

Curriculum Committee, Department of Biology, University of Washington (Contributor, 2005)

Curriculum Committee, Department of Zoology, University of Washington (Member, 2000)