Macroinvertebrate Tag

By , February 4, 2012

Students spent time learning about the transparency water and dissolved oxygen in specific areas (Hwy 11, Hwy 7, Jay Cock and Chambers Grove). Each place a specific level that told them if the water was healthy or not. All spots checked were very good.

Water samples were taken and invertebrates were counted. Over time the invertebrates that were tolerate to pollutants grew in number. That’s bad. The invertebrates that were sensitive to pollution started to die off – also bad.

Each student was then ID as either a stone fly, caddis fly, mayfly, a scud, or a blood worm. Students lined up and on the mark “go” ran from one side to the other side of the field. The person who was “it” who represented pollution. If they tagged one of the invertebrates  the invertebrate became a “bloodworm”. A bloodworm is a symbol of polluted waters. It took only three or four runs across the field to shake out the “waters” showing how the pollution grows fast and leaves a negative impact.

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