Portrait of David Armstrong

David Armstrong

Professor Emeritus

Aquatic & Fishery Sciences

Working on:
David Armstrong's research focuses on the crab and shrimp fisheries that are so important along the U.S. West Coast. Much of his work is done in conjunction with programs designed to predict possible negative effects of development—such as dredging, oil exploration, and materials disposal—on populations of these animals. To this end, he works on population dynamics and production, spatial and temporal distribution, habitat requirements, reproductive cycles, feeding strategies, energetic requirements, and toxicant effects. Along the Washington coast and in Puget Sound, he has also studied the importance of major coastal estuaries to early juvenile stages of Dungeness crab. He is also very interested in predator-prey interactions of crab and shellfish, shellfish being a source of refuge habitat for juvenile crab. Many aspects of these programs have application in controversial environmental and societal issues, including mitigation of crab loss caused by Army Corps dredging, and Native American Treaty rights pertaining to shellfish resources in Puget Sound. Armstrong is the former director of the School of Aquatic and Fisheries Sciences at UW.