Spring 2013 Environmental Field Methods 1/6 Every spring, the students of GES 460 Environmental Field Methods have a demonstration at the Field Station. Download Image 2/6 Kit Hastings gave a guest lecture on limnological sampling methods. Download Image 3/6 Students collected a plankton sample with a plankton net. Download Image 4/6 Examining the plankton sample. Download Image 5/6 Kit Hastings explains how to use a Van Dorn water sampler. Download Image 6/6 Students collected a benthic grab using a ponar. Download Image