A plankton net is lowered to the bottom and raised vertically to collect zooplankton. Samples are set aside for later examination. Sediments and Benthos. A core sample may also be obtained using a two-inch gravity core. Samples are set aside for later examination.
Students line up at the halyards to help raise the sails.
Teamwork and cooperation are taught as sails go up. A hauling chantey adds fun to the job. The sample is washed through a screen and bottom fauna are recovered. Benthos are examined with a hand lens. Benthic modes of life, the importance of benthos in the food web, and life cycles of aquatic insects and crustacea are studied.