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Central monoaminergic responses to salinity and temperature rises in common carp
De Boeck, G.; Nilsson, G.E.; Vlaeminck, A.; Blust, R. (1996). Central monoaminergic responses to salinity and temperature rises in common carp. J. Exp. Biol. 199(7): 1605-1611
In: Journal of Experimental Biology. Cambridge University Press: London. ISSN 0022-0949; e-ISSN 1477-9145, more
Peer reviewed article  

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    Cyprinus carpio Linnaeus, 1758 [WoRMS]
Author keywords
    common carp; Cyprinus carpio; temperature; salinity; serotonin; dopamine

Authors  Top 
  • De Boeck, G., more
  • Nilsson, G.E.
  • Vlaeminck, A.
  • Blust, R., more

    Juvenile common carp, Cyprinus carpio, were exposed to increased levels of salinity (1% NaCl) at 25°C and 30°C, Levels of the monoamine neurotransmitters dopamine (DA) and serotonin (5-HT) and their metabolites dihydroxyphenylacetic acid and 5-hydroxyindoleacetic acid were determined in different brain parts, Whereas the elevated temperature only resulted in higher levels of the metabolites, increased salinity caused increased levels of DA and 5-HT as well. Increased levels appeared after the first day of exposure and most effects were further enhanced after 1 week in 1% NaCl. Increases in DA and 5-HT levels were most pronounced in the hypothalamus, which is the major integrative centre controlling the release of hormones, Thus, one possible role of these changes in neurotransmitter metabolism could be to control the release of prolactin and cortisol, two major hormones involved in the regulation of ion homeostasis in teleosts.

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