Maryland Department of Natural Resources’ (DNR) fisheries biologists demonstrated how electrofishing for invasive blue catfish works on the Potomac River this September as part of an event with the Choose Clean Water Coalition in Washington D.C. The event took place near the Woodrow Wilson Bridge. Catfish have specialized sensory organs that make them particularly sensitive to low frequency currents, which do not typically affect other fish species. Researchers commonly use electrofishing to sam
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