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2021-02-15Zeitschriftenartikel DOI: 10.18452/23312
Innate immunity, oxidative stress and body indices of Eurasian perch Perca fluviatilis after two weeks of exposure to artificial light at night
dc.contributor.authorKupprat, Franziska
dc.contributor.authorHölker, Franz
dc.contributor.authorKnopf, Klaus
dc.contributor.authorPreuer, Torsten
dc.contributor.authorKloas, Werner
dc.date.accessioned2021-09-02T10:53:20Z
dc.date.available2021-09-02T10:53:20Z
dc.date.issued2021-02-15none
dc.date.updated2021-06-14T20:49:52Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/23914
dc.description.abstractArtificial light at night (ALAN) can disrupt biological rhythms of fish and other vertebrates by changing the light information of the nocturnal environment. Disrupted biorhythms can impair the immune system of vertebrates as it has been shown for conditions with continuous illumination or long-day photoperiod in many vertebrates, including fish. Nonetheless, this has not been shown so far for typical ALAN scenarios with high light intensities during day and low light intensities at night. Therefore, in this study, proxies for the innate immune system and oxidative stress as well as body indices of Eurasian perch Perca fluviatilis were measured under a wide range of intensities of nocturnal illumination. The authors found no changes in parameters of the innate immune system and no significant changes in proxies for oxidative stress after 2-week exposures to nocturnal illuminance ranging from 0.01 lx to 1 lx in one experiment or from 1 lx to 100 lx in a second experiment. A decrease in the hepato-somatic index at the highest tested light intensity of 100 lx compared to the dark control was the only significant difference in all parameters among treatments. After 2 weeks of exposure, ALAN does not seem to seriously challenge the innate immune system and seems to cause less oxidative stress than expected. The results of this study contradict the findings from other studies applying continuous illumination or long-day photoperiod and highlight the importance of further research in this field. Because ALAN represents a sustained modulation of the environment that may have cumulative effects over time, long-term studies are required for a better understanding of how ALAN modulates the health of fish.eng
dc.description.sponsorshipLeibniz Association http://dx.doi.org/10.13039/501100001664
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC 4.0) Attribution-NonCommercial 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectALANeng
dc.subjectfisheng
dc.subjectfreshwatereng
dc.subjectlight pollutioneng
dc.subjectnon‐specific immune systemeng
dc.subjectskygloweng
dc.subject.ddc590 Tiere (Zoologie)none
dc.titleInnate immunity, oxidative stress and body indices of Eurasian perch Perca fluviatilis after two weeks of exposure to artificial light at nightnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/23914-0
dc.identifier.doihttp://dx.doi.org/10.18452/23312
dc.type.versionpublishedVersionnone
local.edoc.pages13none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dcterms.bibliographicCitation.doi10.1111/jfb.14703none
dcterms.bibliographicCitation.journaltitleJournal of fish biologynone
dcterms.bibliographicCitation.volume59none
dcterms.bibliographicCitation.issue1none
dcterms.bibliographicCitation.originalpublishernameWiley-Blackwellnone
dcterms.bibliographicCitation.originalpublisherplaceOxford [u.a.]none
dcterms.bibliographicCitation.pagestart118none
dcterms.bibliographicCitation.pageend130none
bua.departmentLebenswissenschaftliche Fakultätnone

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