ALASKA FISHERY AND FUR-SEAL INDUSTRIES 165 
When man did not interfere and all males grew to maturity, 
harem bull would be replaced after a short period of service by = 
stronger bull. This resulted in a stronger and better race and un- 
tained at one time over a hundred cows. There were numerous strong, 
husky bulls without cows a short distance from the harem, but none of 
them seemed interested in securing any of the cows from this particular 
PUPS AND COWS 
The number of pups and cows was determined by applying the 
average rate of increase secured through actual pup counts made from 
1917-to 1922. It is difficult to say whether there was an actual in- 
crease of approximately 8 percent, but observations would indicate 
that this estimate is somewhat high. The harems now cover such 
large areas that a normal increase in cows would not necessarily be 
readily observed from year to year, but should be easily discernible 
over a period of years. From year to year one area may show a large 
increase or a considerable decrease, as movements are not constant 
in any particular place. 
Distribution of pups on the Pribilof Islands, Aug. 10, 1938, and comparison with 
distribution in 1937 




iss 
Total Rape Se 
Rookery pups = 
Living Dead Total Pement 1957 ~s 
| pups pups pups dead pups 
St. Paul Isisnd: 
Wo 7 pete ee Bee Ae ee ee 30. 081 232 wh 330 Lz 18 S24 Ls 
pera Se Pe ee ee Q 616 213 gs22 217 9 101 TS 
O00) kL. Jee eee SL, 176 s 31, .8% 47, 736 Zs 
~  AN See  e  eee +. 766 117 255 233 4521 s 
J Tee EEE eee 102. 174 1,514 18, & 1s %, WT 7&1 
ET oT Bate Sot Seaemerteaterleg ceeetteetigaat 3a, 955 T+ 31,733 ls 23.378 2330 
~-2 ie ei ee eee = |. 3oer St segs! 51 2 
ot) 7 Tih ee Se ee ee & 189 = 61. G7 LX 3 56 4 531 
es 2 Lf 31 435 
T+ 1 250 27. SS 2.215 
.& So , 
iS 3 3 L® 
LS 1a aS 8S 
251 832 Sil 
28 aw. sO 
28 TS 6 31 
LL? 4.15 37, 13d 
La 37, S77 XG 
23 AHS 238 
LR 4,027 } —m 
Lv 5 76 
1a S679 BH 
14 24. 781 LS 
LT 1M SSS & ST 

5 
g 
o 
= 
e 
44 
aa 
uw 
ro 
= 
rd 
wv 
4 
th 
oi 

