poundage) was less than the lakewide average. 

 Only small amounts of lake herring, whitefish, 

 and suckers were taken. 



District II - Michigan Waters from Crisp Point 

 Light to the Outlet of Beaver Lake 



Few drags were attempted in this district 

 because of poor harbor facilities, unfavorable 

 weather during the visits, and extensive 

 stretches of irregular bottom. Fourteen drags 

 in District II caught a total of only 52 pounds 

 of fish, and none of the drags was of com- 

 mercial significance. 



District III - Michigan Waters from the Outlet 

 of Beaver Lake to Salmon - Trout Point 



A large number of snags were encountered 

 in this district, and bottom trawling is feasible 

 only in rather restricted areas in the deeper 

 water. From Marquette Bay to Granite Island, 

 50 percent of the drags hit snags. 



Catches of chubs were generally fair in this 

 district. Fifteen drags with the 52-foot trawl in 

 35 fathoms and deeper produced a catch rate 

 of 207 pounds of chubs per 1/2-hour drag. The 

 best catches, both taken off Shelter Bay, were 

 580 pounds at 50 fathoms during cruise 23 

 and 950 pounds at 40 fathoms during cruise 29. 



Trout were taken in only 1 8 of the 49 drags, 

 making up 1.7 percent of the total catch by 

 weight and yielding 1-1/2 pounds per 1/2-hour 

 drag. 



Excellent catches of common whitefish were 

 taken in Munising Bay. Six drags here caught 

 three-quarters of all whitefish taken in Lake 

 Superior by the Kaho. The best individual 

 catch in Munising Bay was 235 pounds, and the 

 average catch for effective effort was 135 

 pounds, Whitefish were also taken in Marquette 

 Bay, but the best catch was only 41 pounds. 



Catches of other species were small. The 

 best smelt catch (110 pounds) was taken in 

 50 fathoms off Shelter Bay during cruise 23. 

 The best alewife catches (30 and 60 pounds) 

 were taken west of Granite Island in Marquette 

 Bay. Lake herring and suckers were taken 

 occasionally only in small amounts. 



District IV - Michigan Waters from Salmon- 

 Trout Point to the Elm River 



Explorations were made only from Salmon- 

 Trout Point to Manitou Island, thus waters of 

 this district adjacent to the west side of the 

 peninsula were not trawled. A large amount of 

 localized trawling grounds is available in the 

 area explored, and few snags (mostly sub- 

 merged logs) were encountered on these 

 grounds . 



The most successful and consistent pro- 

 duction rates for chubs in Lake Superior have 

 been obtained in this district especially along 

 the east shore of the Keweenaw Peninsula 



and in Keweenaw Bay. Consistently good 

 catches of chubs were taken in 35 to 50 fathoms 

 in the following areas: off Portage Entry, 

 along the east shore and south central portion 

 of Keweenaw Bay, and along the east shore of 

 the Keweenaw Peninsula from Grand Traverse 

 Bay to Bete Grise Bay (fig. 7). The best chub 

 catch rates in District IV were obtained at 45 

 fathoms on all but the last cruise. The 1/2-hour 

 catch rates at 45 fathonns for cruises 18 

 through 25 were as follows: 440,425,520, and 

 650 pounds. On cruise 29 the best catch rate 

 (250 pounds) was obtained at the 40-fathom 

 depth. At the above depths where chub pro- 

 duction was the best, very few lake trout were 

 taken in the trawl as indicated by catch rates 

 by cruise of only 2, 0, 1, 7, and 2 pounds, 

 respectively. The best individual 1/2-hour chub 

 catches in this district for each of the five 

 cruises (18 to 29) were 840, 1,210, 620, 1,650 

 and 430 pounds. Figure 8 illustrates the catch 

 rates of chubs and trout by depth in this 

 district for each cruise. 



A potential harvest for smelt and suckers 

 also appears to exist in this district. The best 

 individual catches of smelt taken in District IV 

 on each cruise (18 to 29) were 320, 240, 150, 

 25, and 1,200 pounds. All of the above landings 

 were in Huron Bay or the southern half of 

 Keweenaw Bay. Good catches (140 to 255 

 pounds) of suckers were taken during cruises 

 20, 23, and 29 in 10 to 15 fathoms in Huron 

 Bay and at the mouth of Huron Bay. Lesser 

 amounts of suckers (up to 120 pounds) were 

 caught in Keweenaw Bay. Alewives were taken 

 sporadically, and the best catch was 75 pounds 

 in 30 fathoms in Keweenaw Bay during cruise 

 23. Catches of both common and round white- 

 fish were small--the best catch was less than 

 50 pounds. 



District V - Michigan Waters from the Elm 

 River to the Montreal River 



Good trawling bottom was found continuously 

 from Fourteen Mile Point, east of Ontonagon, 

 to the Montreal River. Depths from 5 to 75 

 fathoms were trawlable, and the only snags 

 encountered were submerged logs. 



Most drags in District V during cruise 25 

 were aimed at taking chubs; therefore, most 

 effort was made at 35 fathonns where the largest 

 chub concentrations inthe district were located 

 at that tinne. At the 35 -fathom depth range on 

 cruise 25, the catch rate was 204 pounds, and 

 the best catch of 450 pounds was taken off 

 Ontonagon. During cruise 29, significant 

 catches of chubs--250 and 350 pounds--were 

 taken at 30 and 40 fathoms, respectively. 



Species other than chubs totaled 48 percent 

 of the district landings. Suckers were the most 

 abundant of the other species followed by smelt 

 and lake trout. Sucker concentrations were not 

 found on cruise 25; however, during cruise 

 29, suckers were taken in 1 1 of the 15 drags 



