TABLE 2 Occurrence of Lesions in Steelhead {Salmo gairdneri) Smolts Exposed to 115% 

 Supersaturated Water and Sampled After 45, 93, 143, 216, 255, and 336 hr 



Number having gas emboli in: 

 afferent gill vessels 

 conus arteriosis 

 atrium 

 other vessels or tissues 



Number with: 

 exophthalmia 

 hemorrhage from gills 

 fin hyperemia 

 stomach filled with food 

 intestine filled with food 

 excess mucus in intestine 

 other eye pathology 



•Under peritoneum along kidney. 



TABLE 3 Occurrence of Lesions in Steelhead [Salmo gairdneri) Smolts Exposed to 110% 

 Supersaturated Water and Sampled After 69, 142, 213, 310, 360, and 408 hr 



Number of fish in sample 



Number of hr of exposure 



Number with emphysema of: 

 tail 



anal fin 

 pelvic fin 

 pectoral fin 

 dorsal fin 

 operculum 



Number having gas emboli in: 

 afferent gill vessels 

 conus arteriosis 

 atrium 

 other vessels or tissues 



Number with: 

 exophthalmia 

 hemorrhage from gills 

 fin hyperemia 

 stomach filled with food 

 intestine filled with food 

 excess mucus in intestine 

 other eye pathology 



•Corneal opacity. 

 "•Hemorrhage in anterior chamber of at least one eye. 



3 



t, r 



17 



3 



10 

 7 



68 Stroud, Nebeker 



