Fig. (1) Osoyoos Lake north basin, showing echosounding transects and lake bathymetry (water depths in m). Phytoplankton and water chemistry were sampled at 2 stations in 46 meters of water. Zooplankton were sampled at 5 stations all deeper than 30 m and equally spaced down the long axis of the lake. Mysis were sampled at 10 stations all deeper than 30 m and equally spaced down the long axis of the lake ([47] for details).