Great Lakes Food Web
Students learn about and manipulate model fish to build a food representative of the Great Lakes.
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Where do all the toxins go?
When students have completed this activity, they will be able to demonstrate how chemicals accumulate in fish fat, the biopathways of the toxins in the fish’s body, and ways to prepare fish to avoid consuming the toxins.
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Who Can Harvest a Walleye?
Students play a board game where they learn the meaning of the following terms as they relate to a
biomass pyramid: producer, herbivore, first-order carnivore, second-order carnivore; calculate the relative number of kilograms at each level of the biomass pyramid in a given environment; and analyze how different conditions in the environment affect the pyramid.