8. In 1963, maximum number of salmonids 

 counted in 1 day (4,743) was on July 15. 



9. Season's total of fish other than salmon 

 and steelhead trout passing Rock Island Dam 

 in 1963 was 137,367, about 30,800 more than 

 salmon and steelhead. The following were 

 recorded: sucker, 95,423; squawfish, 15,221; 

 whitefish, 17,240; chub, 6,266; carp, 351; shad, 

 2; Dolly Varden and rainbow trout, 66; and 

 lamprey, 2,798. 



10. All salmon and steelhead were examined 

 for injuries as they passed over the counting 

 boards. Only the top and one side could be 

 seen by the counter. About 2 percent had 

 injuries, and most of the injured fish were 

 observed in July and August. Large chinook 

 and sockeye salmon suffered a higher rate of 

 injury than small chinooks, cohos, and steel- 

 heads. In 1962, about 0.5 percent exhibited 

 some type of injury. 



MS #1390 



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