Fish Physiology and Biochemistry

, Volume 28, Issue 1, pp 439–440

Effect of high water temperature on brain-pituitary-gonad axis of the red seabream during its spawning season

  • Koichi Okuzawa
  • Naoki Kumakura
  • Koichiro Gen
  • Sonoko Yamaguchi
  • Bong-Soo Lim
  • Hirohiko Kagawa
Article

DOI: 10.1023/B:FISH.0000030621.31336.91

Cite this article as:
Okuzawa, K., Kumakura, N., Gen, K. et al. Fish Physiology and Biochemistry (2003) 28: 439. doi:10.1023/B:FISH.0000030621.31336.91

Abstract

In the present study, we examined the effect of high water temperature on brain-pituitary-gonad (B-P-G) axis of a perciform fish red seabream, Pagrus (Chrysophrys) major during its spawning season (April-May). High water temperature negatively affected all levels in B-P-G axis and turned out to be the termination factor of the spawning season of this species.

FSHGnRHGnRH receptorLHred seabreamtemperature

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Koichi Okuzawa
    • 1
  • Naoki Kumakura
    • 2
  • Koichiro Gen
    • 3
  • Sonoko Yamaguchi
    • 4
  • Bong-Soo Lim
    • 2
  • Hirohiko Kagawa
    • 5
  1. 1.National Research Institute of AquacultureFisheries Research AgencyWatarai, MieJapan
  2. 2.Department of Aquatic Biosciences, TokyoUniversity of Fisheries, 4-5-7 Konan, Minato, Tokyo 108-8477Japan
  3. 3.Inland Station, National Research Institute of AquacultureFisheries Research AgencyWatarai, MieJapan
  4. 4.Department of Animal and Marine Bioresources Sciences, Faculty of AgricultureKyushu UniversityFukuokaJapan
  5. 5.Division of Fisheries Science, Faculty of AgricultureMiyazaki UniversityMiyazakiJapan