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Broodstock management and endocrine control of reproduction of the matrincha, Brycon cephalus (Gunther, 1869) (Teleostei: Characidae), an Amazonian fish with potential for aquaculture
Fim, J.D.I.; Randall, C.F.; Storti Filho, A. (2000). Broodstock management and endocrine control of reproduction of the matrincha, Brycon cephalus (Gunther, 1869) (Teleostei: Characidae), an Amazonian fish with potential for aquaculture, 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. 332
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., meer
In: International Symposium on the Reproductive Physiology of Fish. Museo Nacional de Ciencias Naturales. , meer
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  • Fim, J.D.I.
  • Randall, C.F.
  • Storti Filho, A.
Abstract
    To examine whether environmental factors may influence sexual maturation, broodstock matrincha were maintained either in ponds or in an enclosure within a natural small stream (igarape). The peak in testosterone levels in fish maintained in the igarape occurred one month later, and was approximately five times higher, than in fish held in ponds. Fertilization rate of eggs produced by hormonal induction was 75% in fish selected from the igarape, but zero in fish from the ponds.
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