Abstract
The present study demonstrates that social dominance is a hierarchy of body size and that every adult male tilapia has the potential to become dominant depending upon the body size of his opponents. Further, we show chronic social stress down-regulates GnRH1-2 but not GnRH3 mRNAs levels, which could influence reproduction and reproductive behaviors.
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References
Parhar, I.S. 2002. Cell migration and evolutionary significance of GnRH subtypes. Prog. Brain Res. 141: 3–17.
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Ogawa, S., Soga, T., Sakuma, Y. et al. Modulation of GnRH subtypes by social stress and aggressive behavior. Fish Physiology and Biochemistry 28, 49–50 (2003). https://doi.org/10.1023/B:FISH.0000030474.32151.12
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DOI: https://doi.org/10.1023/B:FISH.0000030474.32151.12
Keywords
- mRNAs Level
- Body Size
- Aggressive Behavior
- Reproductive Behavior
- Social Stress