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Phytoplankton sampling on Shadow Mountain Reservoir

By Colorado Water Science Center
Image of USGS employees collecting a phytoplankton and cholorophyll sample.
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Detailed Description

Photograph of USGS employees, Ethan Newman and Katherine Curran, collecting a depth-integrated, water sample from the photic zone (the layer of water that receives sunlight) using a modified pool hose. Lily Delmarsh (bottom right) is preparing to measure the transparency of the water using a secchi disk.​​​



USGS 4013311005501401 – Shadow Mountain Lake near Midlake near Grand Lake, Colorado  

Sources/Usage

Public Domain.