A diatom, showing the typical results for diatoms and copepods
A dinoflagellate, showing the typical results for dinoflagellates and zooplankton
Little shift in mean seasonal peak – peak during turnover in water column responding to photoperiod cues
Climate Envelope Modelling Approach:
1. Observed effects on (distribution, abundance) and growth of temperature and dissolved O2
2. Projected changes in temperature and dissolved O2 under SRES A2 Scenario.
Chinook and RBT: 24 C thermal toleranceBull trout: 14.4 C thermal tolerance
- 95th percentile of frequency distribution- on a weekly scale
John Day River systemHobo temperature loggers
AIRTEMPERATUREPROJECTIONS
A1B emissionsscenario
(a) Historic (1993-2009)(b) Projection (2070-2099)
Chinook and RBT: 24 C thermal toleranceBull trout: 14.4 C thermal tolerance