AGE AND GROWTH OF THE CISCO 
231 
0 I 23456 769 10 II 12 
Figure 4. — General growth curves showing the average weight (in grains) of the different age groups of cisco at time of capture 
in summer. Trout Lake, ; Muskellunge Lake, — . — ; Clear Lake, — ... — ; Clear Lake (males), ; Clear Lake 
(females), . 
Table 16 . — Muskellunge Lake cisco — Average iveight in grams of each age group in each year's co- 
lection, and grand average weight for each age group, 1928, 1980, and 1931 collections combined, 
together with the annual increment and the percentage increase 
[Sexes combined. The average weights for the I-group fish are probably too high as the result of gear selection. Number of spec- 
imens in parentheses. Groups marked with asterisks unreliable because of selective action of gear] 
Year of capture 
Grand 
AW 
100AW 
1928 
1930 
1931 
average 
w 
60 (2) 
51 (266) 
42 (229) 
•31 (9) 
60 (2) 
51 (290) 
46 (695) 
•35 (45) 
9 
17.6 
55 (10) 
60 (252) 
•33 (19) 
49 (14) 
45 (214) 
•39 (17) 
5 
10.9 
Table 17 . — Silver Lake cisco — Average weight in grams of each age group in each year's collection, 
and grand average weight for each age group, for the 1980 and the 1931 collections combined, together 
with the annual increment and the percentage increase 
[ Sexes separately. The average weights for the I-group fish are probably too high as the result of gear selection. Number of speci- 
mens in parentheses. Groups marked with asterisks unreliable because of selective action of gear] 
Age 
Year of capture 
Grand average 
AW 
100AW 
1928 
1930 
1931 
w 
Male and 
female 
Male 
Female 
Male 
Female 
Male 
Female 
Male 
Female 
Male 
Female 
VI 
106 (3) 
104 (8) 
104 (11) 
11 
11.6 
V 
81 (10) 
98 (10) 
99 (15) 
95 (12) 
92 (22) 
96 (22) 
95 (37) 
10 
11 
11.6 
13. 1 
IV 
68 (69) 
86 (23) 
87 (35) 
86 (13) 
80 (22) 
86 (36) 
84 (57) 
4 
11 
4.9 
15. 1 
Ill 
59 (46) 
86 (13) 
74 (12) 
76 (10) 
73 (13) 
82 (23) 
73 (25) 
16 
12 
24.2 
19.7 
II 
50 (9) 
68 (3) 
64 (4) 
64 (4) 
60 (8) 
66 (7) 
61 (12) 
I 
•28 (1) 
•32 (24) 
•35 (25) 
•32 (24) 
•35 (25) 
