334 U. S. BUREAU OF FISHERIES 
COMPLETE COMPUTATION 
Following is a summary of the method used to arrive at the com- 
plete computation for 1926, together with a recapitulation of the 
herd. It will be noted that the increase in the total number of 
seals over 1925 was 38,231, or 5.29 per cent. The increase in 1925 
over 1924 was 25,892, or 3.71 per cent. 
Complete computation of fur seals, Pribilof Islands, as of August 10, 1926 





















| 
St 
St. Paul S 
Class e George Total 
Island retail 
IRUPs ReStimated =S-- = ee Sa = 2s en an ee ee eel ao 199, 146 44, 968 244, 114 
Breeding cows, 3 years old and over, by inference_----_- BS 5e St at Sh wee ee = 199, 146 44, 968 244, 114 
iHaremibullsicounted==*2 235s 22.2 ee 2 IE A is DS et 3, 478 556 4, 034 
Tdlewbullsteountede toss se Ae ee Se Se i Se ee ee ee SE Se | 368 55 423 
Yearlings. male and female, estimated: | 
HemaleswpOnmund92o 2 6.2 Ee eee ee ee eee 92, 226 20, 819 113, 045 
INaturalemeoncalitiy.tomper Conbess= 92 = eee pee ee eee 41, 502 9, 368 50, 870 
Wearliriy females; Amp L0;d02G 0 tee a ese | 50,724| 11,451 | 62,175 
Males borin’ 192620- 00): se Meee a Titra, (PS | 92,225 | 20,820} 113, 045 
Nathralanorntalitys oO) percent. 22-22 es ee ee 46, 112 10, 410 56, 522 
Nearlingamalesibeginnin gal 926 Saas ee nes ee ee 46, 113 10, 410 56, 523 
Weanling males killega926=.b. 2 oe se ee eT EE 8 Se en eee ee 9) | 5 eee 9 
yearling males pA es OMtO26M=) bese OMe Pee ee eee | 46, 104 10, 410 56, 514 
2-year-olds, male and female, estimated: 
Weanlingiemales Ari ps1 Os O2528 see eek tes 2 ee eee oe ceo 47, 445 9, 864 57, 309 
Naturalimonvality.22:o per centue ss Pe eos eo ae ae ee eee 10, 675 2, 219 12, 894 
P=-VOan-OlGeleIn Ales seATIS a1 0; SLO 26 = eee aa re ae ee pe 36, 770 7, 645 44, 415 
YiearlingpmaleswAqiotel Oy O25 Eee oS ee Lea ne ME Se eee nee ae | 438,124 8, 967 52, 091 
Niearlingmaaleskalledifalli 1925 wae se ee os ae ee Pee eee 15/6 2a 1 
Nieanlingsmales’endtonl925; be a eS ee ey = Se ee ee ne 43, 123 8, 967 52, 090 
Natural mortality, 25 per cent_______- Or Ne i TIN BD SEN es 10, 781 2, 241 13, 022 
2=vear-Olds beginning O26 wena eee es a ee 32, 342 6, 726 39, 068 
2-Vear-Oldskalled@lO26%: = =a = oe — See Se ee ee 852 33 885, 
2-Vvear-oldsmales, Aug: 10219262_-— ses = > eee Ee eee 31, 490 6, 693 38, 183 
3-year-old males, estimated: 
2-vear-oldematles; vAvg 251051925 2-2 ae ee ae | 37,170 6, 345 43, 515 
2-Vear-old males) killed ifalliiG25- 2-22 see ea ee ee eee ee 26))| ee ee 26 
2-vear-oldiimales end: of, 192h2 "se ae eee Seek es aoe 37, 144 6, 345 43, 489 
INaturalamortalityeloipencentss.¢- 8 oe neces eas ae e ee ae ee 5, 571 952 6, 523 
3-Veat-Olds beginning 19260 < mee sos Se 2 eee Aa ee eee ee 31, 573 5, 393 36, 966 
a-vear-olds'killed 16262 --=: _ = ae a eee ae ees 2h ee 14, 285 5, 492 19, 777 
B=VORT-Old=MAleSseA eo. LO O2Ge = aan Dane = eee ee ee 2 () (1) 17, 189 
4-year-old males, estimated: 7 i 
SaVenr-Oldemales: PAIS: 1 O} i192) ss = eee ee eet Beem ee eee 20, 002 1, 188 21, 185 
B-vear-oldmnalesikitled! fall 1925 ees vee Oe ee eee 504 224 728 
S-Veor-Oldmnalesieng OldiO25) 2. foe eee ea ee ene eee ee 19, 498 959 20, 457 
INGbuEalamontalityeLO per cent. .—-« 4 kaos 7 ee ee eee 1, 950 96 2, 046 
4-vear-oldymales: beginning 1926... .--.-.73552 5 2--Sh aon 8 se 17, 548 863 18, 411 
AsyGar-0) Gsm alesyRINEG al O26 2s ee 2282 See ee eee a eee 480 59 539 
A-VGaT-OLd Males; PAE LO; el O26s- 0-2. . e eee cae 17, 068 804 17, 872 

1 Apparently a large number of 3-year-olds credited to St. Paul Island hauled out on St. George Island. 
