Terrapin Excluder Devices

Terrapin excluder devices (TEDs), also known as bycatch reduction devices (BRDs), are used on commercial-style crab traps to reduce the capture and drowning of diamondback terrapins in the blue crab fishery. TEDs are available as 1 3/4-inch ovals, which we have found to be easier to install and just as effective at excluding terrapins and admitting crabs as the traditional rectangular design. 

 You can 3D print your own TED using our design.