Home > About > Picture Gallery > Fieldwork Gallery

Incubation tank for C14 primary production. Tim Meinke is placing light and dark bottles into the three channels that are at the temperature of the epilimnion, the metalimnion, and the hypolimnion. Each bottle contains lake water from one of those layers and is spiked with C14. Differences in uptake between the light and dark bottles at different temperatures and light levels are used to calculate primary production for the entire lake water column.
Site: Trout Lake Station
Date: 2004
Photographer: Tim Kratz

Click on image for larger picture