Effects of illumination and pot design on catch and bycatch when targeting northern shrimp (Pandalus borealis) using white LED PotLights

Authors
Horton, T. W., Enever, R., Godley, B. J., Kibel, P., Malone, D., McAndrew, D., & Doherty, P. D.
Year
Journal/Publisher Name
Ocean & Coastal Management
Volume (Issue #)
267
Page #s
17
Contact information
T.W. Horton, University of Exeter, UK- t.horton@exeter.ac.uk
Summary

This study reports on trials investigating the use of white Light Emitting Diodes (LEDs) to improve target catch and reduce nontarget catch in northern shrimp  (Pandalus borealis) and Norway lobster (Nephrops norvegicus) pot fisheries. Illuminated pots led to a significantly higher catch per unit effort (CPUE) of northern shrimp, but levels were still not commercially viable. LEDs also resulted in higher juvenile poor cod (Trisopterus minutus) bycatch and reduced Norway lobster (Nephrops norvegicus) catch. LEDs on nets may be promising for increasing CPUE and an alternative to trawl fisheries for northern shrimp.

Link
https://www.sciencedirect.com/science/article/pii/S0964569125001255

Field Studies

Effects of illumination and pot design on catch and bycatch when targeting northern shrimp (Pandalus borealis) using white LED PotLights

Study Type
Field study in the wild
Location
Scotland
Target catch
Northern shrimp (Pandalus borealis), Norway lobster (Nephrops norvegicus)
Effect on bycatch species
Increase in poor cod (Trisopterus minutus)
Effect on target catch
Increased CPUE of northern shrimp (Pandalus borealis), decrease in Nephrops
Bycatch species
Bony Fishes
Trisopterus minutus (Poor cod)
Reduction technique
Visual deterrents
Fishing Gear
Pots