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Invasive species threaten Florida

An armored catfish is seen at Wekiwa Springs State Park. David Murray, environmental specialist with the Wekiva River Aquatic Preserve, is trying to limit the park's catfish population. Armored catfish gather in huge schools and have spread across much of the state. There are several species, with different appearances, grouped under the name of armored catfish. Those in the Wekiva River are also called sailfin or suckermouth catfish.RED HUBER, ORLANDO SENTINEL FILE