Further experiments with radial escape section (RES) as fish-shrimp separator in trawl
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A new approach to the bycatch problem when trawling for shrimp was initiated in Norway in 1984 utilizing the difference in swimming behaviour of fish and shrimp. A radial escape section (RES) in the aft belly of the trawl allowed fish to activly escape as shrimp was guided by funnels of netting towards the codend. The performance of the new selective device (RES) as well as behaviour of fish in trawls has been observed by a remote controlled television vehicle (RCTV). Comparative fishing experiments to evaluate its selective properties was conducted with a siamese twin trawl as well as with two trawlers fishing in the same area.