Invasive rusty crayfish, sometimes called gladiators, monitored in various Pa. waterways
The Pennsylvania Fish and Boat Commission is monitoring invasive rusty crayfish that act like gladiators as they try to take over native species.
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Invasive rusty crayfish, sometimes called gladiators, monitored in various Pa. waterways
aquatic invasive species coordinator for Pennsylvania Fish and Boat Commission. “One of my colleagues has called them gladiator crayfish. They are much bigger, much more aggressive, much meaner ...