Turtle Excluder Devices ( TED )

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Relevance: " Take steps to remove US ban on Indian wild caught shrimps, Indian fishing community urges govt " - The Hindu businessline

USA imposed this ban because of absence of Turtle Excluder Devices in Indian fishing boats during inspection.

Turtle excluder devices, commonly called TEDs, promote sea turtle conservation by addressing interactions between sea turtles and trawl fishing gear. These devices are made of metal bars and mesh that fit inside the neck of a trawl net. While shrimp pass between the bars to the back of the net, turtles and other larger animals bump against the metal grid and escape through a flap in the mesh.

The modern TED is a simple grid made of metal bars that is fit into a trawl net. Small animals, such as shrimp, pass through the grid into the mesh bag at the end of the trawl and are caught. When larger animals like sea turtles enter the trawl net, they are redirected by the TED and are able to exit through an opening either at the top or bottom of the net. Current TED designs  have been determined to be 97 percent effective in excluding turtles from shrimp trawls. 

  1. " Turtle Excluder Devices ", NOAA
  2. " Fishing Gear: Turtle Excluder Devices ", NOAA
  3. Design and operation of Turtle Excluder Devices (TED), Raghu Prakash R., Central Institute of Fisheries Technology

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