Zooplankton in Upper Willamette Reservoirs, 2015

Samples targeting crustacean zooplankton were collected from 3 upper Willamette Basin reservoirs during May-August 2015. Van Dorn sampling devices were used to collect samples at discrete depths from Fall Creek Reservoir, Lookout Point Reservoir, and Hills Creek Reservoir. Zooplankton samples were collected during daytime and nighttime corresponding with the new moon phase to evaluate zooplankton diel migration in these reservoirs. Zooplankton were visually identified using a microscope and the quantity found at each depth was recorded. Density was calculated for each taxa identified per sample collected. This dataset also includes environmental parameters such as temperature, light, and chlorophyll corresponding to sample collection date.