150i 



)00 



50 



A 



12 3 4 

 Experiments 



1959 SEASOI 

 COMPOSIT! 



(N = 348) 



RECOVERY LOCATIONS TESTED 



(A) GIBRALTAR 



(B) COPPER R. 



(C) ILIAMNA R. 



(D) KNUTSON COMPLEX 



(E) NEWHALEN-NONDALTOr 



COOK INLET 



Figure 7.- -Recoveries by experiment, 1959, Kvichak River system. For explanation of figure, 



see legend to figure 5. 



vicinity. In view of these complications it was 

 considered best to combine recoveries for 

 several important spawning groups in the 

 Knutson Bay area. Significantly, the group 

 spawning on the beach in Knutson Bay is one 

 of the largest and therefore most important 

 in the system. 



Newhalen-Nondalton recoveries are vir- 

 tually all from personal-use fishing effort and 

 do not represent well-defined groups. Tags 

 were drawn principally from spawners destined 

 for the Newhalen River and above, though some 

 Newhalen village catches may include fish 

 bound for points east of there. 



It appears then that of the five recovery 

 points tested, two. Copper and Iliamna Rivers, 



were represented by fish drawn from their 

 respective spawning groups only. The Gibraltar 

 River recoveries were representative of the 

 group in that river though they were not 

 exclusively from Gibraltar River fish. The 

 recoveries in Knutson Complex were repre- 

 sentative of fish of a fairly well-defined 

 geographical region that includes important 

 Knutson Bay. Newhalen-Nondalton represented 

 a block of recoveries of indefinite origin 

 above Iliamna Lake. Because of their 

 heterogeneous representation, these Knutson 

 Complex and Newhalen-Nondalton recovery 

 points are not as valuable to the discussion 

 as are Copper, Iliamna, and Gibraltar; 

 but nevertheless they contribute to the 

 evaluation of segregation in time of 

 entry. 



17 



