Common carp Cyprinus carpio displaying proactive or reactive stress coping styles were acclimated to two environmental regimes (low oxygen and low temperature), and selected groups were tested for response to an inflammatory challenge ( Escherichia coli lipopolysaccharide, LPS ). Plasma glucose and lactate levels were measured, as were selected C. carpio ‐specific messenger (m) RNA transcript abundance, including cortisol rece...