Science QuestionsNatural Production
- Is Taneum Creek a good place for Coho?
Ecological Interactions
- How will trout respond to naturally produced coho?
- Will increased coho natural production have any negative effects on resident trout (growth or abundance) or will the nutrient benefits from stocking (carcasses) outweigh any potential negatives?
PIT Tagged Smolts- Fall 2008- PIT tagged 1300 Taneum coho
- Spring 2009- Detected 71 at mainstem dams
Ecological Interactions- Track changes in RBT abundance and biomass - BACI
- Monitor growth of PIT tagged RBT in areas with and without coho production
- Track changes in total combined biomass of salmonids - Ecological Efficiency
- Determine utilization of carcass material
Preliminary Results- No detectable change to NTT abundance, growth or biomass after 1 year of coho natural production
- Increase in combined biomass