Jeanette C Fiess

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The Mozambique tilapia, Oreochromis mossambicus, is capable of surviving a wide range of salinities and temperatures. The present study was undertaken to investigate the influence of environmental salinity and temperature on osmoregulatory ability, organic osmolytes and plasma hormone profiles in the tilapia. Fish were acclimated to fresh water (FW),(More)
In most teleost fishes, prolactin (PRL) plays a key role in freshwater (FW) adaptation, whereas growth hormone (GH) is involved in seawater (SW) adaptation in salmonids and certain euryhaline species including the tilapia, Oreochromis mossambicus. Consistent with its osmoregulatory activity, PRL release increases in response to physiologically relevant(More)
Ghrelin (Ghr) is a gut-brain peptide with potent growth hormone (GH)-releasing and orexigenic activities. Ghrelin is synthesized mainly in the oxintic mucosal cells of the stomach, but is expressed to varying degrees in many other tissues, thus suggesting both endocrine and paracrine functions. Ghrelin is the endogenous ligand of the growth hormone(More)
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