HABITS OF YELLOW PERCH. 357 
TABLE 22.—COMPARISON OF NUMBER OF PERCH EXAMINED FROM LAKE WINGRA AND FROM LAKE 
MeEnpota WuicH ConTAINED LITTLE oR No Foop, SHowNn By MONTHS. 
[Figures in parentheses indicate per cent of total catch.] 
LAKE WINGRA, 1916. 
Females. Males. 
—- 
Month. eat 
(degrees = 
i ee Number | Number Nuanbes Number 
empty. empty. | caught. empty. empty. 
° ° 2 ° ° 
° ° ° ° ° 
° ° 9 ° ° 
° ° 28 ° 8(15) 
° 1(2) I ° ° 
° ° II ° ° 
° ° 19 ° ° 
° 5 (12) 25 ° 11(z7) 
a(s) ° ar 8(20) 1) 
° ° 12 ° ° 
° ° 5 ° ° 
° ° I ° ° 
LAKE MENDOTA, rors-16. 
oar bee teet Andries ea Me cath Se Re ES te ae A ee ee 
0-6 26 ° ° 20 ° ° 
1-0 28 1(2) ° 16 ° ° 
2.2 2a ° ° 37 ° ° 
3-8 28 ° 4(6) 33 ° 10(16) 
9-8 49 1 ° 23 1(1) ° 
14-4 28 2(2 ° 14 ° ° 
19-2 AT ° ° 40 1(1) ° 
19-3 29 ° 1(2) 25 ° 1(2) 
17-2 32 ° ° 13 ° ° 
13-4 22 ° ° 28 ° ° 
4-9 25 ° 1(2) Ir ° ° 
1-8 15 ° ° 15 o ° 
