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Non-native Fish Species: A Management Conundrum and an Ecological Headache

Angela Strecker
Director, Institute for Watershed Studies; Associate Professor of Environmental Sciences


Thursday, November 12, 2020 - 4:30pm

Photo courtesy of Utah DWR

See Zoom details.

Many non-native fish species have been stocked in aquatic habitats for recreational purposes for over a century.  However, non-native game fish can have significant effects on native organisms, as well as the functioning of freshwater ecosystems.  Nowhere are these consequences more strongly felt than in mountain lakes, most of which were historically fishless.  Although fish stocking in wilderness areas is widespread practice,  it is incongruent with the intent of the Wilderness Act.  This has put management agencies in a challenging position.  Here, I will discuss some research on the ecological effects of fish stocking on contaminants in mountain lakes, how visitors to national parks perceive fish stocking activities, unintended consequences of fish removal, and thoughts on how we go forward from here.

Photo of Angela Strecker

Dr. Angela Strecker is the Director of the Institute for Watershed Studies and Associate Professor of Environmental Sciences.  Prior to arriving at WWU, she was faculty in the Department of Environmental Science and Management at Portland State University and Director of the Center for Lakes and Reservoirs.  She completed her Bachelor of Science degree with Honours in Biology at the University of Regina and a Ph.D. at Queen's University in Biology.

Photo of Angela Strecker


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