. . . Western Pacific Bottomfish and Armorhead Fisheries 



76 



Figure 17-1.— U.S. landings and 

 catch per unit of effort of 

 bottomfish from fisheries off the 

 a) main Hawaiian Islands (MHI 

 and b) Northwest Hawaiian 

 Islands (NWHI). 



i 



2 



800 



700 



600 



500 



400 o 

 a 



UJ 



300 3 



a. 



o 



200 



100 



1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 



250 



200 



a> 150 



c 



| 100 



50 



Effort 



2,000 



1,500 



1,000 o 



3 

 a. 

 o 



500 



1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 



Pelagic Armorhead 



posed on the Hancock seamounts. 



The long-term potential yield (Table 17- 

 1 ) is 2, 1 23 1, but further recovery is needed 

 to achieve that level. 



Standardized stock assessments began 

 in 1985. Research cruises focus on the S.E. 

 Hancock seamount and sample the 

 armorhead stock with bottom longlines. 



calibrated against Japanese trawling. 

 Catch rates vary but have not shown the 

 increases expected after the fishing mora- 

 torium was implemented (Fig. 17-3). Clo- 

 sure of only the small G.S.-EEZ portion of 

 the armorhead's distribution probably was 

 insufficient to allow population recovery. 



