Pelagic organisms avoid white, blue, and red artificial light from scientific instruments
Abstract In situ observations of pelagic fish and zooplankton with optical instruments usually rely on external light sources. However, artificial light may attract or repulse marine organisms, which results in biased measurements. It is often assumed that most pelagic organisms do not perceive the...
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Online Access: | http://dx.doi.org/10.1038/s41598-021-94355-6 http://www.nature.com/articles/s41598-021-94355-6.pdf http://www.nature.com/articles/s41598-021-94355-6 |
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crspringernat:10.1038/s41598-021-94355-6 2023-05-15T15:07:59+02:00 Pelagic organisms avoid white, blue, and red artificial light from scientific instruments Geoffroy, Maxime Langbehn, Tom Priou, Pierre Varpe, Øystein Johnsen, Geir Le Bris, Arnault Fisher, Jonathan A. D. Daase, Malin McKee, David Cohen, Jonathan Berge, Jørgen Norges Forskningsråd Canada First Research Excellence Fund Network of Centres of Excellence Canada Natural Sciences and Engineering Research Council of Canada Fisheries and Oceans Canada 2021 http://dx.doi.org/10.1038/s41598-021-94355-6 http://www.nature.com/articles/s41598-021-94355-6.pdf http://www.nature.com/articles/s41598-021-94355-6 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-94355-6 2022-01-04T14:27:47Z Abstract In situ observations of pelagic fish and zooplankton with optical instruments usually rely on external light sources. However, artificial light may attract or repulse marine organisms, which results in biased measurements. It is often assumed that most pelagic organisms do not perceive the red part of the visible spectrum and that red light can be used for underwater optical measurements of biological processes. Using hull-mounted echosounders above an acoustic probe or a baited video camera, each equipped with light sources of different colours (white, blue and red), we demonstrate that pelagic organisms in Arctic and temperate regions strongly avoid artificial light, including visible red light (575–700 nm), from instruments lowered in the water column. The density of organisms decreased by up to 99% when exposed to artificial light and the distance of avoidance varied from 23 to 94 m from the light source, depending on colours, irradiance levels and, possibly, species communities. We conclude that observations from optical and acoustic instruments, including baited cameras, using light sources with broad spectral composition in the 400–700 nm wavelengths do not capture the real state of the ecosystem and that they cannot be used alone for reliable abundance estimates or behavioural studies. Article in Journal/Newspaper Arctic Zooplankton Springer Nature (via Crossref) Arctic Scientific Reports 11 1 |
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Multidisciplinary Geoffroy, Maxime Langbehn, Tom Priou, Pierre Varpe, Øystein Johnsen, Geir Le Bris, Arnault Fisher, Jonathan A. D. Daase, Malin McKee, David Cohen, Jonathan Berge, Jørgen Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
topic_facet |
Multidisciplinary |
description |
Abstract In situ observations of pelagic fish and zooplankton with optical instruments usually rely on external light sources. However, artificial light may attract or repulse marine organisms, which results in biased measurements. It is often assumed that most pelagic organisms do not perceive the red part of the visible spectrum and that red light can be used for underwater optical measurements of biological processes. Using hull-mounted echosounders above an acoustic probe or a baited video camera, each equipped with light sources of different colours (white, blue and red), we demonstrate that pelagic organisms in Arctic and temperate regions strongly avoid artificial light, including visible red light (575–700 nm), from instruments lowered in the water column. The density of organisms decreased by up to 99% when exposed to artificial light and the distance of avoidance varied from 23 to 94 m from the light source, depending on colours, irradiance levels and, possibly, species communities. We conclude that observations from optical and acoustic instruments, including baited cameras, using light sources with broad spectral composition in the 400–700 nm wavelengths do not capture the real state of the ecosystem and that they cannot be used alone for reliable abundance estimates or behavioural studies. |
author2 |
Norges Forskningsråd Canada First Research Excellence Fund Network of Centres of Excellence Canada Natural Sciences and Engineering Research Council of Canada Fisheries and Oceans Canada |
format |
Article in Journal/Newspaper |
author |
Geoffroy, Maxime Langbehn, Tom Priou, Pierre Varpe, Øystein Johnsen, Geir Le Bris, Arnault Fisher, Jonathan A. D. Daase, Malin McKee, David Cohen, Jonathan Berge, Jørgen |
author_facet |
Geoffroy, Maxime Langbehn, Tom Priou, Pierre Varpe, Øystein Johnsen, Geir Le Bris, Arnault Fisher, Jonathan A. D. Daase, Malin McKee, David Cohen, Jonathan Berge, Jørgen |
author_sort |
Geoffroy, Maxime |
title |
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
title_short |
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
title_full |
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
title_fullStr |
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
title_full_unstemmed |
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
title_sort |
pelagic organisms avoid white, blue, and red artificial light from scientific instruments |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-94355-6 http://www.nature.com/articles/s41598-021-94355-6.pdf http://www.nature.com/articles/s41598-021-94355-6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Zooplankton |
genre_facet |
Arctic Zooplankton |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-94355-6 |
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Scientific Reports |
container_volume |
11 |
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1 |
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1766339417984729088 |