Differences between domesticated Eurasian and Japanese indigenous strains of the common carp (Cyprinus carpio) in cortisol release following acute stress

Autor: Teruhiko Takahara, Zen'ichiro Kawabata, Takafumi Ito, Toshifumi Minamoto, Hideyuki Doi
Rok vydání: 2014
Předmět:
Zdroj: Ichthyological Research. 61:165-168
ISSN: 1616-3915
1341-8998
Popis: To understand the differences in the stress sensitivities between domesticated Eurasian and Japanese indigenous strains of common carp (Cyprinus carpio Linnaeus 1758), we compared concentrations of cortisol released into the water in response to handling of the two types of strains. At 0.5 and 2 h after the handling treatment, the cortisol emission was greater from the Eurasian strain than from the Japanese strain. There were no differences between the strains in the cortisol levels after 4 to 24 h. We found that Eurasian strains exposed to the unnatural stressor (i.e., handling) exhibited a higher cortisol response than the Japanese strain.
Databáze: OpenAIRE