AGE AND GROWTH OF THE CISCO 
221 
Table 5. — Calculated growth of Silver Lake ciscoes to the end of each year of life for the different year 
classes at each age; sexes combined 
[Groups marked with asterisks unreliable because of selective action of gear] 
Year class 
Year of 
capture 
Ago 
Number 
of 
speci- 
mens 
Length 
in 
milli- 
meters 
Year of life 
1 
2 
3 
4 
5 
6 
7 
1923 
1928 
V 
10 
182 
76 
115 
142 
161 
175 
( 1928 
IV 
69 
174 
79 
125 
150 
166 
1924 .. 
\ 1930 
VI 
3 
197 
72 
112 
134 
161 
177 
192 
1 1931 
VII 
1 
201 
77 
111 
135 
158 
172 
186 
196 
[ 1928 
III 
46 
165 
73 
127 
157 
1925 - 
•J 1930 
V 
25 
193 
74 
120 
145 
165 
185 
1 1931 
VI 
21 
194 
78 
119 
142 
158 
177 
189 
1928 
II 
9 
157 
90 
140 
1926.. - 
{ 1930 
IV 
58 
183 
78 
126 
152 
173 
( 1931 
V 
108 
188 
80 
126 
150 
168 
182 
( 1928 
*1 
1 
133 
95 
1927 . 
\ 1930 
III 
25 
181 
77 
134 
167 
l 1931 
IV 
102 
183 
80 
132 
159 
176 
/ 1930 
II 
7 
173 
99 
151 
1928 
\ 1931 
III 
61 
177 
83 
137 
166 
1929 
1931 
II 
19 
171 
104 
151 
1930 
1931 
*\ 
66 
141 
105 
1 
Table 6. — Calculated growth of Clear Lake ciscoes (males) to the end of each year of life for the dif- 
ferent year classes at each age 
Year class 
Year of 
capture 
Age 
Number 
of 
speci- 
mens 
Length 
in 
milli- 
meters 
Year of life 
1 
2 
3 
4 
5 
6 
7 
8 
9 
f 1931 
VIII 
3 
338 
118 
203 
248 
279 
297 
314 
326 
333 
\ 1932 
IX 
1 
355 
114 
194 
254 
290 
310 
323 
333 
345 
354 
1924 
f 1931 
Vll 
8 
331 
110 
198 
249 
279 
298 
312 
324 
\ 1932 
VIII 
7 
345 
1C8 
195 
250 
279 
302 
318 
331 
342 
/ 1931 
VI 
11 
326 
108 
192 
248 
282 
303 
316 
1925 
\ 1932 
VII 
9 
336 
102 
188 
248 
280 
302 
318 
331 
1926 
f 1931 
V 
4 
325 
110 
189 
247 
290 
312 
{ 1932 
VI 
2 
320 
98 
183 
251 
283 
299 
315 
1927 . 
/ 1931 
IV 
10 
317 
104 
190 
258 
292 
\ 1932 
V 
7 
320 
98 
181 
249 
288 
312 
1928 
/ 1931 
III 
26 
285 
104 
188 
255 
\ 1932 
IV 
ii 
314 
105 
191 
260 
302 
1929 
/ 1931 
ir 
34 
253 
108 
200 
\ 1932 
in 
23 
290 
110 
198 
268 
1930 
/ 1931 
i 
20 
178 
119 
\ 1932 
ii 
20 
254 
113 
218 
1931 
1932 
i 
20 
176 
122 
Table 7. — Calculated growth of Clear Lake ciscoes (females) to the end of each year of life for the different 
year classes at each age 
Year class 
1921. 
1922. 
1923. 
1924. 
1925. 
1926. 
1927. 
1928. 
1929. 
1930. 
1931. 
Year of 
capture 
Age 
Num- 
ber of 
specimens 
Length 
in milli- 
meters 
1 2 
1931 
X 
1932 
XI 
1931 
IX 
1932 
X 
1931 
VIII 
1932 
IX 
1931 
VII 
1932 
VIII 
1931 
VI 
1932 
VII 
1931 
V 
1932 
VI 
1931 
IV 
1932 
V 
1931 
III 
1932 
IV 
1931 
II 
1932 
III 
1931 
I 
1932 
II 
1932 
I 
2 
376 
1 
378 
1 
351 
1 
379 
13 
354 
2 
368 
21 
344 
8 
356 
12 
339 
12 
362 
2 
338 
1 
320 
4 
334 
7 
342 
25 
302 
14 
329 
35 
264 
21 
308 
18 
186 
13 
262 
11 
176 
111 
211 
110 
214 
114 
206 
1)3 
235 
112 
199 
107 
200 
108 
190 
105 
194 
105 
183 
108 
190 
108 
188 
98 
183 
103 
191 
98 
177 
108 
199 
103 
195 
108 
207 
108 
205 
119 
114 
123 
219 
Year of life 
3 
4 
5 
6 
7 
8 
9 
10 
11 
264 
265 
262 
278 
253 
259 
250 
246 
241 
252 
258 
251 
273 
251 
269 
268 
288 
294 
283 
301 
286 
291 
282 
278 
283 
294 
302 
283 
306 
297 
308 
313 
301 
312 
308 
322 
305 
304 
311 
322 
326 
299 
328 
332 
316 
326 
323 
333 
322 
324 
327 
339 
341 
342 
330 
340 
336 
346 
335 
339 
353 
351 
339 
353 
347 
354 
362 
361 
346 
370 
370 
369 
376 
377 
— 
363 
351 
357 
315 
329 
312 
282 
