Lake Sampling


Geoff Horst collects zooplankton samples. Adam Mileski measures temperature and oxygen.


Preparing to measure upwelling and downwelling light. Setting a Van Dorn sampler for collecting subsurface water.

Luis RIvera records underwater light intersities with a LiCor data logger.

Algae Blooms


Photos courtesy of Ryan Jonna

Aphanizomenon flos aquae: Ford Lake 2002  Anacystis bloom; Ford Lake August 2002.

Measuring water transparency with a Secchi disk on Ford Lake during a bloom of Aphanizomenon. August 2004.


At left, Kael Hooten examines a surface bloom of Aphanizomenon on August 16, 2004. At right, a duck traces its path through the same bloom.