Parks in America's heartland secure free-flowing rivers, mighty springtimes, and meandering pasture streams. NPS scientists stand guard by keeping track of aquatic invertebrates, the insect larvae and fairies living in stream beds. Some species can endure inadequate water quality, while others require excellent problems. Aquatic invertebrates work as the canary in the coal mine for general stream health. Invertebrate diversity informs us just how a river changes gradually. This info helps us estimate water top quality condition of streams. We accumulate habitat information that aids us identify exactly how the stream changes over time. Data on stream invertebrates assists us assess impacts of development and contamination in the watershed. Source: Data Store Collection 3745.
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