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Providing evidence to improve practice

Action: Turn deck lights off during night-time setting of longlines to reduce bycatch Bird Conservation

Key messages

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A single replicated and controlled study in the South Atlantic found significantly lower bycatch rates when deck lights were turned off during line setting at night.


Supporting evidence from individual studies


A replicated and controlled study (Cherel et al. 1996) in February 1994 in the South Atlantic Patagonian toothfish Dissostichus eleginoides fishery found that seabird bycatch rates on longlines set at night were much lower for lines set when the decklights were turned off, compared to sets with the lights on (0.15 vs. 0.59 birds/1,000 hooks). A total of 21 white-chinned petrels Procellaria aequinoctialis were caught. This study is also discussed in ‘Set longlines at night to reduce seabird bycatch’.


Referenced papers

Please cite as:

Williams, D.R., Child, M.F., Dicks, L.V., Ockendon, N., Pople, R.G., Showler, D.A., Walsh, J.C., zu Ermgassen, E.K.H.J. & Sutherland, W.J. (2018) Bird Conservation. Pages 95-244 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2018. Open Book Publishers, Cambridge, UK.