The influence of artificial light on the capture of deep-water demersal fish by bottom trawling
Gordon, J.D.M.; Bergstad, O.A.; Pascoe, P.L. (2002). The influence of artificial light on the capture of deep-water demersal fish by bottom trawling. J. Mar. Biol. Ass. U.K. 82(2): 339-344. http://dx.doi.org/10.1017/S0025315402005532
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
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| Keywords |
Catching methods > Net fishing > Trawling > Bottom trawling
Environmental effects > Light effects
Fauna > Aquatic organisms > Aquatic animals > Fish
Fisheries
Radiation > Electromagnetic radiation > Light > Artificial light
Water > Deep water
Marine/Coastal |
| Authors | | Top |
- Gordon, J.D.M.
- Bergstad, O.A., more
- Pascoe, P.L.
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| Abstract |
Lights were attached to the headline of a bottom trawl during a series of tows at 1000 m depth in the Rockall Trough (north-east Atlantic). There was no significant difference in the overall numerical abundance of demersal fish between the trawl catches with light and the controls with no light. A principal components analysis based on the total fish catch between the experimental and the control stations showed no segregation. At the individual species level significant differences in catch rate were found for eight species. These are discussed in relation to the small amount of available information on the visual systems of deep-sea demersal fish and their diet. |
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