Identity of a Tilapia Pheromone Released by Dominant Males that Primes Females for Reproduction

@article{KellerCosta2014IdentityOA,
  title={Identity of a Tilapia Pheromone Released by Dominant Males that Primes Females for Reproduction},
  author={Tina Keller-Costa and Peter C. Hubbard and Christian Paetz and Yoko Nakamura and Jos{\'e} P. da Silva and Ana Rato and Eduardo N. Barata and Bernd Schneider and Adelino V. M. Can{\'a}rio},
  journal={Current Biology},
  year={2014},
  volume={24},
  pages={2130-2135}
}

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References

SHOWING 1-10 OF 29 REFERENCES
Tilapia male urinary pheromone stimulates female reproductive axis.
A Sterol-Like Odorant in the Urine of Mozambique Tilapia Males Likely Signals Social Dominance to Females
TLDR
It is suggested that dominant/territorial tilapia males dramatically increase urination frequency in the presence of females ready to spawn and that the urinary odorant acts as a pheromonal signal of dominance, thereby influencing female spawning.
Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)
TLDR
It is suggested that males actively advertise their dominant status through urinary odorants which may act as a 'dominance' pheromone to modulate aggression in rivals, thereby contributing to social stability within the lek.
Brief review of fish pheromones and discussion of their possible uses in the control of non‐indigenous teleost fishes
TLDR
The approach would be to use a variety of pheromones to supplement and increase the efficiencies of other control strategies including the application of poisons or fish with genetic modification, trapping for removal or sterilisation, and barriers to prevent spread.
l-Kynurenine, an amino acid identified as a sex pheromone in the urine of ovulated female masu salmon
TLDR
The urine of the reproductively mature female masu salmon (Oncorhynchus masou) contains a male-attracting pheromone, identical to l-kynurenine in spectral and chromatographic properties, which is a reasonable substance for female masU salmon to advertise their readiness for mating.
Olfactory sensitivity of the Mozambique tilapia to conspecific odours
TLDR
Electro-olfactogram recordings from female Mozambique tilapia Oreochromis mossambicus gave large responses (up to 45 mV) to water previously occupied by sexually active males, indicating that urine provides the strongest olfactory stimulus for females.
Hormonally derived sex pheromones in fish
Social Modulation of Sex Steroid Concentrations in the Urine of Male Cichlid FishOreochromis mossambicus
TLDR
Social interactions may have an important modulatory effect on sex steroid concentrations in Cichlid fish Oreochromis mossambicus.
Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals
TLDR
The results suggest that the larger, more muscular bladder of dominant males is an adaptation, facilitating higher urination frequency, post-renal modulation and storage of larger urine volumes for longer.
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