

A^^^^ 

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tom-grab samples were taken to confirm the existence of 

 trawlable bottom as indicated by the echogram. The sur- 

 veys were restricted to a depth of 3,000 feet or less. About 

 one-tenth of the potential area of this depth was surveyed, 

 and a little less than half of this area was found to be 

 trawlable. The largest trawlable expanse was north of the 

 i.sland of Maui, where drags as long as 4 hours were 

 made. A total of 119 trawl drags was made around the 

 islands. The most promising find, from a commercial 

 standpoint, was a large penaeid shrimp, Penaeus mar- 

 uinalvs (fig. 16). Other potentially valuable species were 

 deep-water flatfishes about 6 inches long. 



After the surveys, Yoshida concluded that although the 

 Hawaiian waters do offer the possibility for establishing 

 a commercial shrimp fishery, the resource is too small to 

 supply anything but a minor, specialty market. 



FIGURE 15. The moin Hawaiian Islands, showing the 1,000-fothom 

 (6,000-foot) depth contours. The crosshotching shows the orcos 

 surveyed by the TOWNSEND CROMWELL, Darker oreas show 

 principol concentrations of shrimp. These large shrimp were the 

 most promising find, from a commercial standpoint. Many small, 

 deep-water flatfishes were also token. 



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