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MERCURY IN TUNA
Water Resources Education Center
Vancouver, WA

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Mercury — the stuff used in thermometers — is poisonous. It evaporates into the air around mines and factories, builds up in rain water, and eventually reaches the ocean floor. There, bottom fish eat it, and it gradually accumulates in big fish higher up the food chain.

One + Two Design, Inc. in Portland, Oregon contracted with Harvest Moon Studio to create “Watch What You Eat!,” an animated computer program. Cartoon fish guide visitors through the process of mercury build-up and how to monitor their consumption of swordfish, tuna fish and others. A 200-pound tuna fish, for example, may have enough mercury to warrant limiting young children to less than one can per week.


Large game - takes a minute to load - wait until you hear the fish talking before starting to play.