than 5,000, "minor." Streams in which the es- 

 capement appeared by July 27 were termed 

 "early-run," those in which fish arrived in late 

 July and the peak of spawning occurred between 

 August 10 and 20 were termed "middle-run," 

 and those in which the peak of spawning oc- 

 curred after mid-August were termed "late- 

 run." The result was six strata. 



Apparently, the fishery takes most of the pink 

 salmon from the middle-run streams. To some 

 extent, the categories early-run, middle-run, 

 and late-run coincide with geographical areas. 

 For example, most of the streams in the Port 

 Wells area are early-run, and those in the 

 outer islands are late-run (fig. 1). 



Figure l.--Fry trapping stations in Prince William Sound, Alaska. Streams designated by numbers shown 



in table 1. 



