Stream Bugs that Speak for the Water: How Mayflies, Stoneflies, and Caddisflies Reveal the Health of Our Rivers

Previously, we’ve talked about the connections between snail anatomy and water quality [https://www.savethesound.org/2025/06/16/snail-anatomy-101-and-pollution-tracking/]. Next up on the topic of freshwater bodies, we’re sharing something stranger, tucked under rocks and crawling along streambeds. Enter—the EPT, Ephemeroptera (mayflies), Plecoptera (stoneflies), and Trichoptera (caddisflies).   These freshwater macroinvertebrates— small, spineless aquatic animals visible to the naked eye—are the […]

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