Field experiment to measure primary production at Lake Kabetogama
![Field experiment to measure primary production at Lake Kabetogama](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Deploying%20Dark%20and%20Light%20Bottles.jpg?itok=aEBPRMQG)
Detailed Description
Dr. James Larson of the USGS prepares an experiment to measure primary production in Lake Kabetogama (Voyageurs National Park, MN).
Sources/Usage
Public Domain.
Photographer – National Parks Service