Estrogen in food or water severely effect the male goldfish (Carassius auratus) sexual behaviour
Bjerselius, R.; Lundstedt-Enkel, K.; Olsén, K.H.; Mayer, I. (2000). Estrogen in food or water severely effect the male goldfish (Carassius auratus) sexual behaviour, in: Norberg, B. et al. (Ed.) Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999. pp. 388
In: Norberg, B. et al. (2000). Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999. International Symposium on the Reproductive Physiology of Fish, 6. Department of Fisheries and Marine Biology, University of Bergen: Bergen. ISBN 82-7461-048-2. 499 pp., more
In: International Symposium on the Reproductive Physiology of Fish. Museo Nacional de Ciencias Naturales. , more
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| Authors | | Top |
- Bjerselius, R.
- Lundstedt-Enkel, K.
- Olsén, K.H.
- Mayer, I.
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| Abstract |
Mature male goldfish were exposed to the natural hormone 17 beta -estradiol (E sub(2)). The fish were exposed for 24-28 days during the spawning period. The males were then paired with an artificially induced spawning female and observed for different sexual behaviours during 15 min. Also, the physiological status of the fish were examined regarding GSI, presence of milt and spawning tubercles. The results show that the measured behavioural variables were significantly and severely effected by the exposure. The physiology was also significantly affected. In conclusion, the study demonstrates that a potential endocrine disrupting chemical (EDC), E sub(2), almost totally inhibit the male sexual activity. |
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