SOME RADIOGRAPHIC OBSERVATIONS ON THE GASTROINTESTINAL AND URINARY SYSTEMS OF ANESTHETIZED PACIFIC SALMON (ONCORHYNCHUS)

Abstract

Standard radiography with barium sulphate as the opaque medium was used to show the gastrointestinal and urinary systems of some intact, living Oncorhynchus species. The fish were anesthetized and the barium introduced into the systems by means of a syringe fitted with fine polyethylene tubing. Lateral and ventral views are presented in a series of photographs.