Exhibit 3.5—Understanding the risks of a changing climate on sockeye salmon—text version
2010 Fall Report of the Commissioner of the Environment and Sustainable Development
Fall 2010 Report—Chapter 3
Exhibit 3.5—Understanding the risks of a changing climate on sockeye salmon
Image shows the how the warmer climate affects the salmon’s journey home.
Climate factors include:
- Warmer winter, reduced snowpack and snowmelt
- Longer summer drought, longer summer flow and warmer river temperature.
These climate factors affect the salmon in the following ways:
- Warmer waters cause salmon to burn energy faster.
- Warmer water increase bacterial/fungal infections of salmon.
- Salmon die en route due to exhaustion and infection.
- Stressed salmon reach spawning grounds but fail to spawn.