The influence of artificial light on the capture of deep-water demersal fish by bottom trawling

Lights were attached to the headline of a bottom trawl during a series of tows at 1000 in depth ill the Rockall Trough (northeast 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...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom
Main Authors: Gordon, John D M, Bergstad, Odd Aksel, Pascoe, P L
Format: Article in Journal/Newspaper
Language:English
Published: 2002
Subjects:
Online Access:https://pure.uhi.ac.uk/en/publications/386c5fda-b9fe-4c89-a59c-964fc3fd83eb
https://doi.org/10.1017/S0025315402005532
https://hdl.handle.net/10215.319/386c5fda-b9fe-4c89-a59c-964fc3fd83eb
Description
Summary:Lights were attached to the headline of a bottom trawl during a series of tows at 1000 in depth ill the Rockall Trough (northeast 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 oil the visual systems of deep-sea demersal fish and their diet.