316 AGE AND GROWTH OF THE CISCO 
APPENDIX A. GROWTH OF THE CISCO IN ALLEQUASH AND TOMAHAWK 
LAKES 
Small collections of ciscoes were obtained from Allequash Lake in 1928 and in 
1930 and from Tomahawk Lake in 1928. Since it is unlikely that any further collec- 
tions of ciscoes will be made in either of these lakes in the near future, the available 
growth data for each of the populations are being presented at this time. 
Tables 1 and 2 show the average length, average weight, average value of K, 
and the calculated length at the end of each year of life in each age group for each of 
the three collections. The most noteworthy features of the growth in these two 
populations are the slow growth during the first year of life in the Allequash fish, the 
generally excellent growth of the Tomahawk Lake cisco, and the indication that in 
the Allequash Lake cisco the year 1929 was one above the average in the amount of 
growth. (It should be pointed out that 1929 was a good growth year in the Trout 
Lake, Muskellunge Lake, and Silver Lake cisco populations.) The I group of the 
1930 Allequash collection shows a particularly high growth for the 1929 season. It is, 
of course, true that the selective action of gear would be expected to cause a too high 
calculated growth for this group in any year but selection can hardly explain such a 
great growth as that which is present here in 1929, for it may be seen that in 1929 the 
calculated growth for the first year of life is 29 millimeters greater than that calcu- 
lated for 1927 from the 1928 I group. 
Table 1. — Allequash Lake cisco 
[Length, weight, value of K, and calculated length at the end of each year of life. Division of data is according to year class and 
year of capture. Sexes combined] 
Year class 
Year of 
capture 
Age 
Number 
of speci- 
mens 
Weight 
in grams 
K 
Length 
in milli- 
meters 
Year of life 
1 
2 
3 
4 
1925 
1928 
III 
3 
54 
1. 50 
155 
54 
101 
127 
1926 
192S 
II 
17 
45 
1.51 
144 
59 
107 
1930 
IV 
1 
140 
1.67 
203 
49 
98 
138 
175 
1927 
1928 
I 
27 
25 
1.36 
123 
64 
1930 
III 
12 
108 
1. 56 
190 
58 
115 
165 
1928 
1930 
II 
11 
71 
1. 54 
167 
54 
133 
1929 
1930 
I 
42 
42 
1. 43 
143 
93 
Table 2. — Tomahawk Lake cisco, 1928 
[Length, weight, value of K, and calculated length at the end of each year of life for each age group. Sexes combined] 
Year class 
Age 
Number 
of speci- 
mens 
Weight 
in grams 
K 
Length 
in milli- 
meters 
Year of life 
1 
2 
3 
4 
5 
1923 
V 
1 
156 
1. 53 
217 
81 
138 
172 
193 
210 
1924 
IV 
16 
146 
1. 59 
209 
78 
141 
174 
198 
1925 
III 
39 
125 
1. 58 
199 
76 
140 
182 
1926 
IT 
1 1 
99 
1. 61 
183 
81 
155 
1927 
I 
1 
35 
I. 42 
135 
83 
Because of the poor growth in the first year of life the general growth of the 
Allequash Lake cisco differs from that of all four populations considered in the main 
body of this study. The closest resemblance is probably with the Silver Lake cisco. 
The growth of the Tomahawk Lake cisco although poorer than that of the Clear Lake 
cisco is distinctly better than that found in Trout, Muskellunge, and Silver Lakes. 
