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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Maxime Geoffroy, Tom Langbehn, Pierre Priou, Øystein Varpe, Geir Johnsen, Arnault Le Bris, Jonathan A. D. Fisher, Malin Daase, David McKee, Jonathan Cohen, Jørgen Berge
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/df2ffea0b96f4428b7162d9ac3fcaa02
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:df2ffea0b96f4428b7162d9ac3fcaa02
record_format	dspace
spelling	oai:doaj.org-article:df2ffea0b96f4428b7162d9ac3fcaa022021-12-02T16:50:25ZPelagic organisms avoid white, blue, and red artificial light from scientific instruments10.1038/s41598-021-94355-62045-2322https://doaj.org/article/df2ffea0b96f4428b7162d9ac3fcaa022021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94355-6https://doaj.org/toc/2045-2322Abstract 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.Maxime GeoffroyTom LangbehnPierre PriouØystein VarpeGeir JohnsenArnault Le BrisJonathan A. D. FisherMalin DaaseDavid McKeeJonathan CohenJørgen BergeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maxime Geoffroy Tom Langbehn Pierre Priou Øystein Varpe Geir Johnsen Arnault Le Bris Jonathan A. D. Fisher Malin Daase David McKee Jonathan Cohen Jørgen Berge Pelagic organisms avoid white, blue, and red artificial light from scientific instruments
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.
format	article
author	Maxime Geoffroy Tom Langbehn Pierre Priou Øystein Varpe Geir Johnsen Arnault Le Bris Jonathan A. D. Fisher Malin Daase David McKee Jonathan Cohen Jørgen Berge
author_facet	Maxime Geoffroy Tom Langbehn Pierre Priou Øystein Varpe Geir Johnsen Arnault Le Bris Jonathan A. D. Fisher Malin Daase David McKee Jonathan Cohen Jørgen Berge
author_sort	Maxime Geoffroy
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	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/df2ffea0b96f4428b7162d9ac3fcaa02
work_keys_str_mv	AT maximegeoffroy pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT tomlangbehn pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT pierrepriou pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT øysteinvarpe pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT geirjohnsen pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT arnaultlebris pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT jonathanadfisher pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT malindaase pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT davidmckee pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT jonathancohen pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments AT jørgenberge pelagicorganismsavoidwhiteblueandredartificiallightfromscientificinstruments
_version_	1718383070543872000

Pelagic organisms avoid white, blue, and red artificial light from scientific instruments

Ejemplares similares