Ichthyological Research

, Volume 61, Issue 2, pp 165–168 | Cite as

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

  • Teruhiko Takahara
  • Toshifumi Minamoto
  • Hideyuki Doi
  • Takafumi Ito
  • Zen’ichiro Kawabata
Short Report


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.


Domesticated Eurasian strain Handling Japanese indigenous strain Non-invasive method Stress sensitivity 


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Copyright information

© The Ichthyological Society of Japan 2014

Authors and Affiliations

  • Teruhiko Takahara
    • 1
    • 2
  • Toshifumi Minamoto
    • 1
    • 3
  • Hideyuki Doi
    • 4
  • Takafumi Ito
    • 5
  • Zen’ichiro Kawabata
    • 1
  1. 1.Research Institute for Humanity and NatureKyotoJapan
  2. 2.Graduate School of Integrated Arts and SciencesHiroshima UniversityHigashi-HiroshimaJapan
  3. 3.Graduate School of Human Development and EnvironmentKobe UniversityKobeJapan
  4. 4.Institute for Sustainable Sciences and DevelopmentHiroshima UniversityHigashi-HiroshimaJapan
  5. 5.Tamaki Laboratory, Aquatic Animal Health DivisionNational Research Institute of Aquaculture, Fisheries Research AgencyTamakiJapan

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