Habitat and nutrients, but not artificial lighting at night, drive fish assemblage composition in urban streams
Jason R. Bohenek,
S. Mažeika Patricio Sulliván,
Suzanne M. Gray
Abstract:Arti cial light at night (ALAN) is pervasive in urban environments, yet its potential effects on biotic communities of urban streams are not fully understood. We investigated the effects of ALAN on sh assemblages in 20 lit-unlit paired stream reaches across 10 sites in Columbus, Ohio, USA across two years. Our results show that light trespass into urban streams is approximately doubled during leaf-off in winter months (1.97 lux ± 0.28) compared to leaf-on in summer months (1.00 lux ± 0.19), highlighting the im… Show more
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