We compared baseline and maximal cortisol concentrations between predator exposure and prey blood samples in pumpkinseed Lepomis gibbosus, captured using a standardised fishing event underneath osprey Pandion haliaetus nests and away from osprey nests. We did not detect differences in cortisol or glucose between sites. These findings suggest that predictable sources of predation risk may not confer stress-related costs in teleosts.

Additional Metadata
Keywords cortisol, Lepomis gibbosus, predator, prey, risk, stress
Persistent URL dx.doi.org/10.1111/jfb.14084
Journal Journal of Fish Biology
Citation
Gallagher, A.J. (Austin J.), Lawrence, M.J. (Michael J.), Jain-Schlaepfer, S.M.R. (Sofia M. R.), Gilmour, K.M. (Kathleen M.), Wilson, A.D.M. (Alexander D. M.), & Cooke, S.J. (2019). Effects of predator exposure on baseline and stress-induced glucocorticoid hormone concentrations in pumpkinseed Lepomis gibbosus. Journal of Fish Biology. doi:10.1111/jfb.14084