Learn how aquatic macroinvertebrates (water insects and more) can help scientists determine water quality in an aquatic ecosystem. Search for dragonflies, mayflies, snails, leeches, scuds and more from Mohonk Preserve Pond samples. Sort and record the macroinvertebrates and use pollution tolerance indexes to determine water quality. Learn how to identify macroinvertebrates using a dichotomous key and field guides.
