Loss of hydrologic stationarity prior to climate change and associations with fish diversity
Loss of hydrologic stationarity prior to climate change and associations with fish diversity
2nd Floor Boardroom National Wildlife Research Centre
Contact Information
Registration
Cost
About this Event
Speaker/Présentateur
Mary Trudeau, Ph.D. candidate
Carleton University
Department of Geography and Environmental Studies
Abstract/Résumé:
Flow alterations within river systems are associated with changes in fish diversity but studies of flows at monthly, or even daily, temporal scales cannot adequately characterize changes that occur during rainstorms as watersheds urbanize. This study used Environment Canada flow data, available in 15-minute increments over 42 years, for 27 watersheds of 11 river systems in the Toronto region of the Great Lakes Basin. The temporal and spatial analyses results were applied to assess associations of event flow characteristics with fish richness. A 6-decade fish database was assembled with the cooperation of many individuals, organizations and a dose of good luck. What were the results? Come find out!