Episode Details

Scientists are sounding the alarm as key aquatic insects like salmonflies vanish from rivers like the Madison, revealing deeper troubles in our waterways. Using specialized tools like the Hess Sampler, researchers are tracking how rising temperatures, pollution, and development are pushing these vital ecosystem indicators toward collapse. Once rebounding from past threats like DDT, these bugs now face new pressures—some species have shrunk or vanished entirely. Anglers have long noticed the decline, but only now are scientists gathering hard data to decode the causes. With long-term monitoring programs underway, the goal is clear: protect these tiny but essential creatures to safeguard the rivers and fish that depend on them.

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