85 



Table 19-2.— Recent average, 

 current potential, and long-term 

 potential yields in metric tons (t), 

 and status of utilization for 

 Bering Sea-Aleutian Islands 

 groundfish. The LTPY, CPY, and 

 RAY for the unit equals the sum 

 of the species' LTPY's, CPY's, and 

 RAY's. Where the species' LTPY 

 is unknown, the species' CPY is 

 substituted in the sum. 



Long-term potential yield (LTPY) = 

 Current potential yield (CPY) = 

 Recent average yield (RAY)' = 



2,784,800 1 

 2,926,1 00 1 

 1, 790,1 00 1 



Yield (t) 



Status of 



' 1 988-90 average 



Figure 19-3.— Landings and 

 abundance trends for groundfish 

 resources in the Bering 

 Sea/Aleutian Islands region for 

 the foreign, joint-venture, and 

 U.S. fisheries, 1976-90. 



2,500 



2.000 



§ 1,500 



o 



1,000 



500 



Y/\ U.S. landings 



] Joint-venture landings 



j Foreign landings 



— Abundance 



- 15 - 



1975 



20 



1980 



. . . Bering Sea-Aleutian 

 Islands Groundfish 



ring Sea (EBS) stock, Aleutian Basin (AB) 

 stock, and the Aleutian Islands (Al) stock. 

 The EBS and Al stocks are moderately 

 high (above the levels that produce LTPY) 

 and are now fully utilized. 



Another large pollock fishery lies outside 

 the U.S. and Soviet EEZ's in the "donut 

 hole" of the central Bering Sea (Fig. 19-1). 

 This fishery is dominated by Japan, 

 (J.S.S.R., Poland, China, and the Republic 

 of Korea. The fishery targets the AB pol- 

 lock stock during its migration through the 

 donut hole area. Catches from this stock 



appear far too high. Although the status of 

 the Aleutian Basin stock is not well known, 

 it appears to be declining rapidly. 

 Pacific Cod: Pacific cod abundance re- 

 mained high and stable throughout the 

 1980's. However, the 1990 survey showed 

 a 26% drop from 1989. This decline and 

 poor production over the past 2 years may 

 be due to changing environmental condi- 

 tions or ecological relationships. The cod 

 stock is fully utilized. 



Flatfishes: Yellowfin sole is the most 

 abundant of the flatfishes. During the 



