Diel activity patterns of the fish community in a temperate stream

• Published in: Journal of Fish Biology
• Main Authors: Toobaie, A., Kim, J.‐W., Dolinsek, I. J., Grant, J. W. A.
• Other Authors: Natural Science and Engineering Research Council of Canada
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2013
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Atlantic salmon; Salmo salar
• Online Access: http://dx.doi.org/10.1111/jfb.12071; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12071; https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12071

The diel activity patterns of fishes in a temperate New Brunswick stream were studied during the summer over 5 years. Young‐of‐the year Atlantic salmon Salmo salar and blacknose dace Rhinichthys atratulus were more active during the day than at night, whereas lake chub Couesius plumbeus , brook trout Salvelinus fontinalis and adult white suckers Catostomus commersonii were more active at night than during the day. Because fishes were as likely to be nocturnal as diurnal, the data suggest that more night‐time sampling is needed to provide an unbiased view of fish community structure in temperate streams.