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The reaction distance of planktivorous fish (Scardinius erythrophthalmus) and the evasiveness of its prey (Daphnia pulex x pulicaria) under different artificial light spectra

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dc.abstract.enArtificial light at night may affect mortality risk in prey from visually oriented predators because the effect of the artificial light spectrum may differ for a predator’s visual prey detection and for prey evasiveness. To test this, we conducted two types of experiment. First, we assessed the reaction distance and swimming speed of juvenile rudd (Scardinius erythrophthalmus) allowed to forage on juvenile Daphnia pulex × pulicaria under three artificial light sources: halogen, high pressure sodium (HPS), and metal halide bulbs, at the same light intensity. Second, we assessed the evasiveness of D. pulex × pulicaria under the same artificial light sources and in darkness (as a control), in the presence and absence of chemical information on predation risk (kairomones) of juvenile rudd. We found that while both reaction distance and swimming speed of fish was greater under halogen compared to HPS, and similar under metal halide light compared to halogen and HPS, the evasiveness of Daphnia was greater under halogen and HPS-generated light than under metal halide light. The results suggest a possible mismatch of Daphnia’s behavioural response under metal halide light to predicted predation risk, and thus a possible threat to predator–prey balance in a lake ecosystem.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMaszczyk, Piotr
dc.contributor.authorBabkiewicz, Ewa
dc.contributor.authorTałanda, Joanna
dc.date.accessioned2024-01-26T10:36:51Z
dc.date.available2024-01-26T10:36:51Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.identifier.doi10.1007/S10201-018-0548-0
dc.identifier.issn1439-8621
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/122946
dc.languageeng
dc.pbn.affiliationbiological sciences
dc.relation.ispartofLimnology
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enArtificial light at night Evasiveness Fish kairomones Predation risk Swimming speed Reaction distance
dc.titleThe reaction distance of planktivorous fish (Scardinius erythrophthalmus) and the evasiveness of its prey (Daphnia pulex x pulicaria) under different artificial light spectra
dc.typeJournalArticle
dspace.entity.typePublication