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Keywords: urine compositionClose
Journal: Journal of Experimental Biology
J Exp Biol (1991) 155 (1): 567–583.
Published: 1 January 1991
... urine composition and measurement of PEG-4000 release into surrounding water to quantify urination events. The direct approach employed a new external catheterization technique to collect naturally discharged urine. Both methods demonstrated that trout urinate in intermittent bursts at 20–30 min...