Soiind and Kodlak areas and as far as the Peninsula district, 

 recoveries have been from the Cook Inlet fishery. 



However, the bulk of the 



Also iinder support of a Pish and Wildlife Service contract, the Fisheries Research 

 Institute of the University of Washington, has undertaken a study of sea lions and hair 

 seals in the Gulf of Alaska. Before any quantitative conclusion as to the role of sea 

 lions as predators can be made, their numbers and centers of abundance must be knovn. 

 With this consideration foremost, the program of the Fisheries Research Institute has 

 been to locate the rookeries and to develop suitable methods for census. 



Studies were made of 17 major rookeries in the area frcm Prince William Sotmd to 

 the eastern Aleutian Islands. By a system of repeated aerial surveys and counts from 

 aerial photographs, the sea lions' summer populations have been estimated as 78^500. It 

 was further learned that seasonal fluctuations occur in abundance on the rookeries. 



Ihls study will provide the basis for more detailed investigations and for the 

 establishment of control measures- that may be required. 



KCDIAK 



EVEN YEARS 



The Ifcdiak pink salmon runs of 

 1957 were less than expected In light 

 of the favorable escapement during 1955* 

 In spite of the unusually large amount 

 of gear attracted by prospects of a good 

 run, the pack was only 227,000 cases 

 (fig. 22). Survival of the I955 escape- 

 ment must have been poor because escape- 

 ment distribution appeared to be excel- 

 lent in many streams In that year. 



Although a drop in pink escapement 

 occurred during 1957^ volume did not 

 appear to be dangerously low In the 

 larger streams, and distribution ■vras 

 generally good. Die small streams were 

 poorly seeded, however, due in part to 

 the universal scarcity of pink salmon 

 and also to the unprecedented dry season 

 which retarded, or In some cases prevented, escapement. Both I956 and 1957 have been 

 characterized by weakness in the late run?, a sitimtion v^ich must be corrected In future 

 regulation . 



'33 '35 '37 "39 



'43 '45 '47 '49 



'53 '55 '57 



Figure 22. --Kodiak pink salnnon pack 



CcjTiblned weir counts for the Alitak 

 District red salmon lakes dropped to 

 78, 9^*7^ the lowest on record. Neverthe- 

 less, this escapement represents 71 

 percent of the red salmon r\in in that 

 district, thus assuring relatively even 

 distribi'tion of a minimal seeding. 



T5ie red salmon count through Red 

 River weir during 1957 was l6l,192. 

 This is a three- fold gain over the 

 parent cycle of 1952. 



The Karluk Lake run for 1957; as 

 reflected by the catch, although low, 

 was higher than in 1956 (fig. 23). Die 



'82 '90 '00 



Figure 23. 



10 '20 '30 '40 '50 



-Karluk red salmon catch 



12 



