Could green artificial light reduce bycatch during Barents Sea deep-water shrimp trawling?


Larsen, R.B., Herrmann, B., Sistiaga, M., Brcic, J., Brinkhof, J. and Tatone, I.



Journal/Publisher Name: 

Fisheries Research

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Contact information: 

The Arctic University of Norway, UiT, Breivika, N-9037 Tromsø, Norway

Light-emitting diodes (LEDs) were mounted on the lower part of a Nordmore grid to determine if they would encourage fish to move up towards the escape outlet prior to contacting the grid. Trials were conducted to assess the size selective properties of a 19 mm bar spaced Nordmore grid with and without LEDs. The target in the fishery is deep water shrimp (Pandalus borealis). Small fish are bycatch, with 51-100% passing through the Nordmore grid. The use of LEDs in addition to the Nordmore grid did not significantly affect the escape probability or the size selectivity of any species.