Table 10. Estimated numbers and biomass (lbs) of trout by age-groups 



in Sections I, II and III of the GaU^tin River in Sep- ^. 

 tember 1976 and 1977. Approximate 80% confidence inter- 

 val in parenthesis. 



SECTION I - BROWN TROUT 



September 1976 



September 1977 



Age-Groups 



11+ 

 III+ 



IV+ & Older 



l,470(+347) 



lbs/15,000 Ft 



188 

 917 

 632 



1,737(+411) 



N/15,000 Ft lbs/15,000 Ft ■' 



530 

 457 

 455 



295 

 570 

 964 



l,442(+379) l,829(+587) 



N/15,000 Ft 



SECTION I - RAINBOW TROUT 

 lbs/15,000 Ft N/15,000 Ft lbs/15,000 Ft 



11+ 



III + 



IV+ & Older 



1,790 



759 



599 

 3,148(+899) 



474 

 441 

 624 



1,539(+351) 



877 

 724 

 461 



233 



415 

 483 



2,062(+353) l,131(+203) 



11 + 



III+ 



IV+ & Older 



SECTION II - BROWN TROUT 



N/10,000 Ft 



No Estimate 



826 

 297 

 165 



l,288(+233) 



l bs/10,000 Ft^ 



516 



351 

 315 

 l,182(+257) 



N/8,000 Ft 



SECTION III - BROV'^N TROUT 

 lbs/ 8,000 Ft 



11+ 



III+ 



IV+ & Older 



336 

 242 

 245 



823(+270) 



164 

 241 

 354 

 ■75^(+299) 



No Estimate 



40 



