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1-8 of 8
Keywords: Gulf toadfish
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Journal Articles
Interactions between cortisol and Rhesus glycoprotein expression in ureogenic toadfish, Opsanus beta
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (2): 314–323.
Published: 15 January 2012
...Tamara M. Rodela; M. Danielle McDonald; Patrick J. Walsh; Kathleen M. Gilmour SUMMARY In their native environment, gulf toadfish excrete equal quantities of ammonia and urea. However, upon exposure to stressful conditions in the laboratory (i.e. crowding, confinement or air exposure), toadfish...
Includes: Supplementary data
Journal Articles
Tamara M. Rodela, Andrew J. Esbaugh, Dirk Weihrauch, Clémence M. Veauvy, M. Danielle McDonald, Kathleen M. Gilmour, Patrick J. Walsh
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (2): 301–313.
Published: 15 January 2012
... the movement of NH 3 across cell membranes. This study examines the effects of crowding and feeding on ammonia excretion in gulf toadfish ( Opsanus beta ) within the context of Rh glycoproteins and the ammonia-fixing enzyme, glutamine synthetase (GS). Four Rh isoforms (Rhag, Rhbg, Rhcg1 and Rhcg2) were...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2006) 209 (15): 2939–2951.
Published: 1 August 2006
...Josi R. Taylor; Martin Grosell SUMMARY Experiments on Gulf toadfish Opsanus beta demonstrate how feeding impacts osmoregulation in the marine teleost intestine. A high Ca 2+ diet of pilchards Sardina pilchardus ([Ca 2+ ]=404.2 mmol kg -1 ) was compared to a low Ca 2+ diet of common squid Loligo...
Journal Articles
Patrick J. Walsh, Molly J. Heitz, Catherine E. Campbell, Gordon J. Cooper, Monica Medina, Yuxiang S. Wang, Greg G. Goss, Vladimir Vincek, Chris M. Wood, Craig P. Smith
Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (15): 2357–2364.
Published: 1 August 2000
...Patrick J. Walsh; Molly J. Heitz; Catherine E. Campbell; Gordon J. Cooper; Monica Medina; Yuxiang S. Wang; Greg G. Goss; Vladimir Vincek; Chris M. Wood; Craig P. Smith ABSTRACT Urea excretion by the gulf toadfish ( Opsanus beta ) has been shown in previous studies to be a highly pulsatile...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (6): 1027–1037.
Published: 15 March 2000
...M. Danielle McDonald; Chris M. Wood; Yuxiang Wang; Patrick J. Walsh ABSTRACT The possible presence of a urea transporter in the kidney of the gulf toadfish ( Opsanus beta ) and further characterization of the pulsatile facilitated transporter previously identified in its gills were investigated...
Journal Articles
Haiyan Kong, Natalie Kahatapitiya, Kyle Kingsley, Wilmar L. Salo, Paul M. Anderson, Yuxiang S. Wang, Patrick J. Walsh
Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (2): 311–320.
Published: 15 January 2000
...Haiyan Kong; Natalie Kahatapitiya; Kyle Kingsley; Wilmar L. Salo; Paul M. Anderson; Yuxiang S. Wang; Patrick J. Walsh ABSTRACT Gulf toadfish ( Opsanus beta ) rapidly switch to excretion of urea as their main nitrogenous waste product under several laboratory conditions, including confinement...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (1995) 198 (10): 2229–2235.
Published: 1 October 1995
...Todd E. Hopkins; Chris M. Wood; Patrick J. Walsh ABSTRACT We examined the relationship between plasma cortisol levels, hepatic glutamine synthetase (GNS) activity and the form of nitrogen excreted (e.g. urea, ammonia) in undisturbed versus confined/crowded (acutely stressed) gulf toadfish...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (1995) 198 (7): 1559–1566.
Published: 1 July 1995
...Patrick J. Walsh; C. Louise Milligan ABSTRACT In order to elucidate further the cues for, and the biochemical mechanisms of, the transition to ureogenesis in the gulf toadfish Opsanus beta , experiments on the effects of feeding (i.e. nitrogen loading) were carried out. Baseline nitrogen excretion...