302 University of California Publications in Zoology 
11400 
1800 
1500 
1200 
900 
600 
300 
6-8 8-10 10-12 
Fig. 3. 
12-2 
P.M. 
Metridia lucens. 
2-4 4-6 
6-8 
8-10 
10-12 
12-2 
A.M. 
[ Vou. 9 
2-4 
Variations in numbers per hour at surface 
according: to time of day. Data in table 26; as may be seen there, the num- 
bers before 8 a.m. are so small that they do not appear on a plot of this seale. 
In table 28 which follows, the data for 144 hauls with the 
horizontal closing nets are arranged to show the occurrence of 
Metridia at various depths at different times. 
Depth in 
fathoms 
1, 46 
2. 7-12 
3. 15-20 
4, 25-35 
5. 50-75 
6. 100-160 
7. 200-250 
8. 300-550 
No. of hauls 
Total 
a 
NSDMWOHA NH 
TABLE 28 
Distribution of Metridia as shown by the horizontal closing nets 
A. 6 a.m.—6 p.m. 
No. of hours 
Success. Total 
2 3 
0 1.6 
0 2.5 
2 2.1 
0 2.6 
1 3.3 
2 2.7 
3 3.2 
2 Syan) 
Success. 
4 
0 
0 
No. of animals 
Total Perhour Haul Time 
5 7 8 
0 
0 
15 
ins) 
o 
i) 
© bo 
0 
0 
Frequency 
0 
0 
22 
4-6 
