Hydrologic regimes in a changing climate: characteristics and responses of wetland and off-channel habitat along the Telkwa River and the implications for juvenile coho salmon. Given changing climatic conditions in British Columbia, Canada, there is a need to examine the hydrologic regime in freshwater systems and the potential implications of a changing regime to species in these systems. This study assessed parameters in the Telkwa River (TR) watershed which, if altered, could potentially have adverse effects on the TR’s hydrologic regime and juvenile Pacific coho salmon (Oncorhynchus kisutch).