Regional and Temporal Variation in the Thermal Habitat of Streams in the Great Lakes Basin

Researchers
: Nicholas Jones and Cindy Chu

Project Description: The thermal characteristics of the streams and rivers that feed the Great Lakes play an important role in defining the species specific habitat supply available for fishes. Species-specific thermal tolerances are the critical biological elements that define these thermal habitats. The primary objectives of this project are:

1. Consolidate existing time series data on water temperature for Great Lakes streams into a single data base that can be used to define existing regional differences in seasonal temperature.

2. Evaluate how these regional and temporal differences in temperature patterns shape current levels of thermal habitat supply for the stream-resident life stages of fishes.

3. Couple these findings with up-to-date climate change scenarios to assess the likely long-term impacts of climate change on stream dependent fishes across the basin.

Chu, C., Jones, N.E., Mandrak, N.E., Piggott, A.R. and Minns, C.K. 2008. The influence of air temperature, groundwater discharge and climate change on the thermal diversity of stream fishes in southern Ontario watersheds. Canadian Journal of Fisheries and Aquatic Sciences 65: 297-308.

Collaborators and Participants:
Ken Minns, Department of Fisheries and Oceans
Andrew Piggott, Environment Canada
Jim Buttle, Trent University

Links:
Cindy Chu, Ecological Modelling
Stream Temperature Analysis Tool and Exchange
ThermoStat
Confronting Climate Change in the Great Lakes
Canadian Climate Impacts and Adaptation Research Network