NORTHWESTERN LAKES OF THE UNITED STATES. 
125 
Table 12. — Analysis of net plankton of lakes examined — Continued. 
COTTAGE LAKE, WASH., AUGUST 13, 1913. 
Depth, meters. 
Cladocera. 
Copepoda. 
Nauplii. 
Rotifera. 
Protozoa. 
Blue-green 
algae. 
Green algae. 
Diatoms. 
0-2 
[Di 24,490 
E 10,710 
16,830 
A 4,080 
N 6, 120 
P 2,040 
M 340 
N 70,080 
N 19,380 
C 31,130 
D 62,260 
E 31, 130 
An 217,910 
Ap 93,390 
C 31,100 
|Di 340 
C 3,730 
5,780 
An 105,500 
A 31, 100 
2-5 
5-7 ... 
Di i, 220 
C 610 
610 
D 62,260 
An 93,390 
A 93,390 
COW LAKE, WASH., AUGUST 14, 1913. 
0-4 
/B 5, 100 
ID 1,270 
/ B 1,270 
\D 510 
ID 260 
E 260 
4,340 
As 1,520 
P 81,630 
As 760 
P 40,820 
A 260 
C 260 
M 260 
P 1,020 
A 1,270 
N 510 
P 1,520 
A 1,020 
N 510 
A 1,020 
N 510 
A 15,800 
4-8..... 
C 260 
4,080 
C i5,806 
C 260 
4,080 
C 15,800 
D 15,800 
| 
JD 50 
C 260 
1,520 
1 ;• 
{ 
100 
20-24 
::::::::::: 
C 510 
1,520 
l 
CRATER LAKE, OREG., 
AUGUST 1, 1913. 
0-10 
M 12,660 
M 12,660 
M 12,660 
M 56,970 
M 164,320 
10-20 . .. 
20-30 
|d 70 
jb sio' 
!b i40‘ 
B 20* 
30-40 
As 100 
As 910 
N 100 
A 100 
As 1,330 
N 300 
As 460 
N 50 
40-60 
60-80 
M 246,480 
80-100 
100-590 
M 69,520 
A 3, 160 
100-150 
N 20 
As 160 
N 50 
M 15,120 
M 55,440 
A 7,560 
A 10,080 
150-200 
200-400 ... 
EE:: 
M 4,800 
M 1,650 
A 1,920 
400-590 
CRATER LAKE 
, OREG., SEPTEMBER 5, 1913. 
0-10 
M 18,990 
10-20 
M 12,660 
20-30 
M 12,660 
30-40 
D 100 
As 1,840 
M 100,280 
40-50 
D 1,020 
As 2,140 
M 44,310 
50-60 
D 1,230 
As 210 
M 94,950 
(D 1,120 
A 100 
M 195,920 
A 12,640 
60-80 
As 2,500 
N 100 
80-100 
|b 450* 
As 3,470 
N 720 
ii 97,960 
A 12,640 
ID 90* 
A 100 
M 447,300 
A 110,880 
100-150 
As 960 
N 310 
;;;;;;;;;;; 
A 60 
M 55,440 
A 10,080 
150-200 
As 160 
1 
N 60 
200-400 
M 4,800 
A 1,920 
400-590 
M 1,650 
