European sea bass genome and its variation provide insights into adaptation to euryhalinity and speciation
Comparing predictions of alternative demographic models to the joint allele-frequency spectrum indicates that genomic islands of differentiation between sea bass lineages were generated by varying rates of introgression across the genome following a period of geographical isolation.
Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)
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.
Non-invasive measurement of steroids in fish-holding water: important considerations when applying the procedure to behaviour studies
Fish behaviourists are increasingly turning to non-invasive measurement of steroid hormones in holding water, as opposed to blood plasma. When some of us met at a workshop in Faro, Portugal, in…
Near-future CO2 levels impair the olfactory system of a marine fish
These findings complement the previously proposed impairment of γ-aminobutyric acid receptors, and indicate that both the olfactory system and central brain function are compromised by elevated CO2 levels.
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus)
- A. Miranda, O. Almeida, P. Hubbard, E. Barata, A. Canário
- BiologyJournal of Experimental Biology
- 1 June 2005
The ability of male tilapia to discriminate between females of differing reproductive status is mediated by odorants released into the water, probably via the urine and faeces, by pre-ovulatory females.
QTL for body weight, morphometric traits and stress response in European sea bass Dicentrarchus labrax.
The results are the first step towards identifying genes involved in economically important traits like body weight and stress response in European sea bass.
The effect of stocking density on growth in the gilthead sea‐bream, Sparus aurata (L.)
It was concluded that growth in gilthead sea-bream, although negatively correlated to stocking density, did not seem to be related to intraspecific competition as assessed by changes in size variability.
Gene structure, transcripts and calciotropic effects of the PTH family of peptides in Xenopus and chicken
- Pedro LC Pinheiro, J. Cardoso, A. Gomes, J. Fuentes, D. Power, A. Canário
- BiologyBMC Evolutionary Biology
- 1 December 2010
The N-terminal region of PTH, PTHrP and PTH-L in Xenopus and chicken share high sequence conservation and the capacity to modify calcium fluxes across epithelia suggesting a conserved role in calcium metabolism possibly via similar receptors.
Increasing genomic information in bivalves through new EST collections in four species: development of new genetic markers for environmental studies and genome evolution.
A Sterol-Like Odorant in the Urine of Mozambique Tilapia Males Likely Signals Social Dominance to Females
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.