626 BULLETIN OF THE BUREAU OF FISHERIES 



Table 88. — Numerical expressions of certain systematic characters for 10 specimens of Coregonus 

 clupeaformis from Lake Superior, selected according to size and locality 



Field 

 No. 



Locality 



Length 



Rakers 



Sex 



Scales 



L/H 



L/O 



L/DB 



L/AB 



L/DA 



L/AT 



L/D 



L/W 



D/W 



SD/H 



SD/O 



SA/H 







































53526 



Marquette, Mich. 



348 



10+16 



Im. 9 



84 



4.9 



6.3 



8.9 



9.4 



3.0 



6.6 



4.0 



7.5 



1.8 



2.3 



2.9 



3.9 



63530 



do 



350 



11+17 



Im. d 1 



86 



4.9 



6.2 



8.3 



8.9 



2.5 



6.1 



4.2 



7.7 



1.7 



2.3 



2.9 



3.8 



57052 



Agawa Bay 



380 



11+17 



& 



79 



4.6 



5.8 



8.0 



10.5 



2.7 



6.9 



4.0 



8.0 



2.0 



2.3 



2.9 



3.6 



57362 



Black Bay 



278 



11+17 



Im. 9 



82 



4.5 



6.0 



7.6 



8.1 



2.6 



6.6 



3.5 



7.9 



2.2 



2.1 



2.8 



3.5 



57366 



do 



271 



11+16 



Im. 9 



84 



4.6 



6.0 



7.6 



8.4 



2.6 



6.3 



3.5 



8.2 



2.3 



2.2 



2.9 



3.6 



57381 



do 



297 



11+16 



Im. 9 



77 



4.7 



6.0 



8.2 



9.5 



2.5 



6.6 



3.5 



8.0 



2.2 



2.2 



2.8 



3.5 



57840 



Batchawanna 



273 



11+17 



Im. C? 



86 



4.5 



5.9 



8.0 



7.9 



2.7 



7.5 



4.0 



9.4 



2.3 



2.1 



2.8 



3.5 





Bay. 



































53053 



Marquette, Mich. 



180 



10+17 



Im. 9 



86 



4.5 



6.2 



8.5 



9.4 



2.8 



6.8 



4.2 



10.0 



2.3 



2.0 



2.8 



3.5 



53521 



do 



226 



9+18 



Im. <? 



91 



4.6 



5.9 



8.6 



9.3 



2.6 



6.1 



4.7 



9.4 



2.0 



2.1 



2.8 



3.5 



53716 



Ontonagon, Mich. 



223 



11+16 



Im. 9 



84 



4.6 



6.2 



8.7 



9.2 



2.7 



7.9 



3.8 



7.9 



2.0 



2.1 



2.9 



3.8 



Field 

 No. 



Locality 



SA/O 



H/E 



H/M 



H/S 



H/J 



H/Ad 



H/E 



O/E 



O/M 



O/S 



PV/P 



AV/V 



DR 



AR 



VR 



PR 



DC 



AC 



Br 



Wt. 













































Lb. oz. 



53526 



Marquette, 

 Mich. 



5.0 



4.6 



3.1 



3.7 



2.6 



2.6 



10.0 



3.6 



2.4 



2.9 



2.0 



1.9 



11 



12 



11 



16 



1.4 



1.0 



9 



1 6.5 



53530 



do 



4.8 



5.0 



3.4 



3.9 



2.7 



2.6 



10.2 



3.9 



2.6 



3.1 



1.9 



1.7 



11 



11 



11 



15 



1.4 



1.0 



9 



1 6 



57052 



Agawa Bay- 



4.5 



4.7 



2.9 



3.0 



2.5 



2.4 



10.5 



3.7 



2.3 



2.4 



1.6 



1.6 



12 



11 



12 



16 



1.3 



1.2 



9 



1 10.5 



57362 



Black Bay.. 



4.6 



4.3 



3.8 



4.1 



2.6 



2.4 



10.3 



3.2 



2.8 



3.1 



1.6 



1.5 



11 



12 



12 



17 



1.6 



1.2 



9 



12 



67366 



do 



4.7 



4.3 



3.3 



3.8 



2.4 



2.4 



10.5 



3.3 



2.5 



2.9 



2.0 



1.7 



11 



12 



12 



14 



1.5 



1.1 



9 



11 



57381 



do 



4.5 



4.7 



3.6 



4.0 



2.5 



2.4 



10.1 



3.7 



2.8 



3.1 



1.6 



1.6 



11 



11 



12 



16 



1.6 



1.2 



9 



13.5 



67840 



Batchawan- 

 na Bay. 



4.5 



4.4 



3.3 



3.9 



2.5 



3.1 



9.6 



3.4 



2.5 



3.0 



1.8 



1.5 



11 



13 



11 



15 



1.5 



1.0 



9 



8 



53053 



Marquette, 

 Mich. 



4.8 



3.8 



3.3 



4.0 



2.5 



3.2 



10.0 



2.7 



2.4 



2.9 



2.1 



1.7 



12 



12 



11 



17 



1.5 



1.0 



9 



2 



53521 



do 



4.6 



4.0 



3.3 



3.7 



2.4 



2.8 



8.9 



3.1 



2.6 



2.9 



1.7 



1.6 



11 



12 



11 



16 



1.6 



1.1 



10 



4.5 



53716 



Ontonagon, 

 Mich. 



5. 1 



4.3 



3.4 



3.7 



2.5 



3.1 



12.0 



3.2 



2.5 



2.7 



2.1 



1.8 



11 



11 



11 



16 



1.5 



1.0 



8 



5.5 



Table 89. — Movements of the whitefish in the pound nets of Lake Superior, according to data gathered 



from the operators of these nets 



Locality 



Nets set 



Depth, 

 in feet 



Appearance 



Maximum abund- 

 ance 



Disappearance 



Return in autumn 



Whitefish Point, 



Mich. 

 Marquette, Mich. . 



Black Bay, Ontario 



Nipigon Bay, Ross- 

 port, Ontario. 



Gargantua, Ontario. 



Batchawanna Bay, 

 Ontario. 



May, third week.. 

 June, first week... 



do 



May, third week- 

 May, fourth week. 

 May, third week.. 



24- 90 



25- 30 



40-50 



25-35 



20-60 

 15-80 



June, first week... 



do 



do 



May, third week.. 



June, first week... 

 do 



June and July 



June and early 



July. 

 Late June and 



early July. 

 June 



July 



do. 



A few in August 

 and September. 

 August, first week. 



do... 



July, first week 



August, first week. 

 August.third week- 



September, sec- 

 ond week. 

 October, first 



(No fall run.) 



(Nets out.) 

 October, last week 







Table 90. — Records of the occurrence of Coregonus clupeaformis in Lake Nipigon 



[For each record is given, if known, the date and locality, the kind of gear used to make it, the depth of the water where made, 



and the total number of preserved specimens examined] 



Rec- 

 ord 

 No. 



Date 



Location 



Gill-net 

 mesh, in 

 inches 



Depth, in 

 fathoms 



Preserved 

 specimens 

 examined 



1 



July 28,1922 

 July 26,1922 

 Aug. 1, 1922 

 July 26,1922 

 (') 



Off Macdiarmid 



2V 2 ,2% 

 2H.2M 



30 



6 



2 



Off Blackwater River 



1-3 



3 



3 



Ombabika Bay 



15-20 



1 



4 



Off source of Nipigon River 



10-15 



21 



5 





3 













1 No data. 



