caa a22 4500 477116973 CHVBK 20180405111625.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF01874839 doi (NATIONALLICENCE)springer-10.1007/BF01874839 Drinking rate in juvenile Atlantic salmon, Salmo salar L fry in response to a nitric oxide donor, sodium nitroprusside and an inhibitor of angiotensin converting enzyme, enalapril [Elektronische Daten] [Juan Fuentes, J. McGeer, F. Eddy] Drinking in freshwater juvenile salmon was investigated in response to vasodilation by sodium nitroprusside (SNP), a nitric oxide donor, which significantly increased blood vessel diameter in Atlantic salmon alevins. Atlantic salmon fry (1-3 g), as previously shown, drank at a significant rate in fresh water which doubled to about 1.2 ml kg−1 h−1 following injection of SNP (100 μmol kg−1), through dilation of body vasculature and activation of a vasoconstrictive mechanism, the endogenous renin angiotensin system (RAS). This response was 50% inhibited by injection of about 100 mg kg−1 enalapril. Fry increased drinking in response to SNP administered in the water, though the concentration required for maximal response, 1.6 mmol l−1, was much greater than for injected SNP; this response was also inhibited by enalapril injection. Possible involvement of the gill vasculature and branchial osmoreceptors or baroreceptors in control of the drinking response is discussed. Kugler Publication bv, 1996 salmon fry nationallicence drinking nationallicence nitric oxide nationallicence renin angiotensin system nationallicence Fuentes Juan Department of Physiology, Faculty of Biological Sciences, University of Santiago, 15706, Santiago de Compostela, Galicia, Spain aut McGeer J. Department of Biological Sciences, University of Dundee, DD1 4HN, Dundee, Scotland, UK aut Eddy F. Department of Biological Sciences, University of Dundee, DD1 4HN, Dundee, Scotland, UK aut Fish Physiology and Biochemistry Kluwer Academic Publishers 15/1(1996-02-01), 65-69 0920-1742 15:1<65 1996 15 10695 https://doi.org/10.1007/BF01874839 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01874839 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fuentes Juan Department of Physiology, Faculty of Biological Sciences, University of Santiago, 15706, Santiago de Compostela, Galicia, Spain aut NATIONALLICENCE 700 1- McGeer J. Department of Biological Sciences, University of Dundee, DD1 4HN, Dundee, Scotland, UK aut NATIONALLICENCE 700 1- Eddy F. Department of Biological Sciences, University of Dundee, DD1 4HN, Dundee, Scotland, UK aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Kluwer Academic Publishers 15/1(1996-02-01), 65-69 0920-1742 15:1<65 1996 15 10695 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer