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Effects of predator exposure on baseline and stress‐induced glucocorticoid hormone concentrations in pumpkinseed Lepomis gibbosus
Author(s) -
Gallagher Austin J.,
Lawrence Michael J.,
JainSchlaepfer Sofia M. R.,
Gilmour Kathleen M.,
Wilson Alexander D. M.,
Cooke Steven J.
Publication year - 2019
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.14084
Subject(s) - lepomis , biology , predator , predation , glucocorticoid , zoology , stress hormone , hormone , medicine , ecology , endocrinology
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.