BIOSTATISTICAL ANALYSIS 



21 



Canadian 

 Catch 



(.8) 



U S 



Catch 



Son Juon & 

 Point Roberts Area 

 95% on U.S. side 



ftjssage Time \fariable 



West Beach 

 Passge Time Idoy 



U. S. 

 Catch 



Canodion 

 Cotch 



(bssage Time Marioble 



Escapement 

 to Froser Rivei 

 Spawning Ground 



FIG. 10. Schematic outline of biological and gear sectors of sim- 

 ulation program for sockeye salmon. 



of gear fishing in the inner Puget Sound area, and are only slightly 

 affected by the gear intensities in upper Puget Sound. Twenty per 

 cent of the sockeye leave the Strait of Juan de Fuca and spend one 

 day in the West Beach area before returning to a migratory path 

 through the San Juan Islands, to the Fraser River. 



The three major fishing areas for sockeye salmon are : ( 1 ) the 

 Strait of Juan de Fuca, where the sockeye run is fished extensively 

 by the Canadian seine and gill net fleet; (2) the San Juan Island- 

 Point Roberts area, where the United States purse seines, gill nets, 

 and reef nets harvest the majority of the United States catch; (3) the 

 Fraser River area, which include the Strait of Georgia off the 

 mouth of the Fraser and the lower part of the Fraser River, where 

 the Canadian gill net fleet takes the remainder of the Canadian 

 catch (Fig. 1). 



The major fishing areas for pink salmon are similar to those 

 for sockeye. 



Silver salmon catches are taken to a greater extent in upper 

 Puget Sound. The United States catch of chum salmon is made in 

 both upper and inner Puget Sound areas. 



The numbers of fish that enter convention waters from the north 



