Brook has worked as a fish biologist for over 20 years in the Pacific Northwest. Before arriving at the USFWS in Vancouver Washington, she worked at the Oregon Department of Fish and Wildlife, the U.S. Forest Service Sierra National Forest, and the USFWS Sacramento-San Joaquin Delta Fish Monitoring Program. Currently she develops and implements projects that evaluate fish passage, abundance, and distribution of both wild and hatchery fish. She is proficient in Program R, data management, and tracking of state and federal field sampling permits.