Figure 9. — Trawl catch taken off Grand Traverse Bay during cruise 25. Drag lasted 1 hour, and the catch was 2,600 

 pounds of chubs, 20 pounds of lake trout, and 10 pounds of smelt. 



were more scattered and the best catches of 

 100, 110, and 180 pounds were taken at 10 and 

 15 fathoms. During cruise 20, smelt were also 

 scattered; however, good catches of 100 to 240 

 pounds were taken at 10 to 15 fathoms in Huron 

 and Keweenaw Bays, On cruise 23, fair 

 concentrations of smelt were in deeper water 

 (30 to 50 fathoms), and catches were taken as 

 follows: 200 pounds at 40 fathoms in Whitefish 

 Bay, 110 pounds at 50 fathoms off Shelter Bay, 

 and 100 to 150 pounds at 30 to 40 fathoms in 

 Keweenaw Bay. During cruise 25, smelt were 

 extremely dispersed and were taken at all 

 depths from 5 to 52 fathoms, and the best 

 catch was only 45 pounds taken off Duluth in 

 12 fathoms. On cruise 29, smelt were con- 

 centrated mostly in 15 and 20 fathoms, where 

 the catch rate was 100 pounds per drag. The 

 largest catch of smelt taken during the study 

 was 1.200 pounds in Huron Bay during the 

 last cruise. Other significant catches during 

 cruise 29 were made in Keweenaw Bay and 

 off Duluth. 



Suckers 



The trawl catches contained longnose and 

 white suckers. The composite total of both 

 species made suckers the third most abundant 



fish taken during the study, composing 6.5 

 percent of the total catch. White suckers were 

 taken more frequently east of the Keweenaw 

 Peninsula whereas longnose suckers were 

 more common west of the peninsula. West of 

 Keweenaw Peninsula, where only 20 percent 

 of the total fishing effort was devoted, over 

 75 percent of the total poundage of suckers 

 was taken. Over 80 percent of the total pound- 

 age of suckers during the study was caught on 

 cruise 29. 



The two most outstanding catches of 900 and 

 320 pounds were taken off the Porcupine 

 Mountains at 30 and 40 fathoms. Other areas 

 west of the Keweenaw Peninsula that produced 

 catches over 100 pounds include Ontonagon, 

 Apostle Islands area, and Duluth. East of the 

 Keweenaw Peninsula, only Keweenaw and Huron 

 Bays, particularly the latter, produced catches 

 of over 100 pounds. The best catch east of the 

 Keweenaw Peninsula was 225 pounds during 

 cruise 23. 



Lake Trout 



Results of the Kaho's explorations helped 

 substantiate the success of lake trout rehabili- 

 tation in Lake Superior. Lake trout were in 

 59 percent of the Kaho's 340 drags. The 



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