PACIFIC HERRING 
257 
Table 13. — Comparisons of the means of the vertebral counts in southeastern Alaska 
[Asterisk shows differences that are probably significant] 
Localities compared 
Differ- 
ence 
between 
means 
Prob- 
able 
error of 
differ- 
ence 
Differ- 
ence 
divided 
by 
prob- 
able 
error of 
differ- 
ence 
Localities compared 
Differ- 
ence 
between 
means 
Prob- 
able 
error of 
differ- 
ence 
Differ- 
ence 
divided 
by 
prob- 
able 
error of 
differ- 
ence 
CHIEF LOCALITIES 
MINOR LOCALITIES 
Craig and Stephens Passage 
0.04 
0. 031 
1.3 
Gravina Island and Craig 
0.08 
0. 079 
1. 1 
Craig and Larch Bay 
. 26 
.033 
*7.9 
Gravina Island and Larch Bay 
.34 
.078 
*4. 4 
Craig and Tebenkof Bay 
.28 
.032 
* 8.7 
Whale Bay and Craig _ 
. 52 
.082 
*6. 3 
Craig and Point Gardner 
.32 
.035 
* 9. 1 
Whale Bay and Larch Bay 
.26 
.081 
3. 2 
Stephens Passage and Larch Bay 
.30 
.027 
*n. i 
Yakutat Bay and Craig 
.08 
. 165 
. 5 
Stephens Passage and Tebenkof Bay. 
.32 
.025 
*12.8 
Yakutat Bay and Larch Bay 
.18 
.165 
1. 1 
Stephens Passage and Point Gardner. 
.36 
.029 
*12.4 
Larch Bay and Tebenkof Bay 
.02 
.028 
.7 
Larch Bay and Point Gardner . 
.06 
.031 
1.9 
Tebenkof Bay and Point Gardner 
.04 
.029 
1.4 
In Prince William Sound (Table 14), the differences between the localities 
are not as great as in southeastern Alaska. It will be noted that there are three 
localities — Puget Bay, Snug Harbor, and Port Fidalgo — that do not differ signif- 
icantly among themselves, but each of which differs from all of the other localities 
in Prince William Sound by an amount over four times its probable error, the signif- 
icance of which will be discussed later. The only other differences of any possible 
significance occur between McClure Bay and Elrington Passage, and between McClure 
Bay and Macleod Harbor. 
Table 14 .—Comparisons of the means of the vertebral counts in Prince William Sound 
[Asterisk shows those statistically significant] 
Localities compared 
Differ- 
ence 
between 
means 
Prob- 
able 
error of 
differ- 
ence 
Differ- 
ence 
divided 
by 
prob- 
able 
error of 
differ- 
ence 
Localities compared 
Differ- 
ence 
between 
means 
Prob- 
able 
error of 
differ- 
ence 
Differ- 
ence 
divided 
by 
prob- 
able 
error of 
differ- 
ence 
Elrington Passage and Puget Bay 
0. 31 
0.045 
*6.9 
Puget Bay and Port Fidalgo __ 
0.01 
0.055 
0.2 
Elrington Passage and Macleod 
Macleod Harbor and Snug Harbor... 
. 17 
.040 
*4.3 
Harbor 
.04 
.036 
1. 1 
Macleod Harbor and Eshamy Bav... 
. 11 
.045 
2.4 
Elrington Passage and Snug Har- 
Macleod Harbor and McClure Bay.. 
.18 
.040 
'4.5 
bor 
.21 
.038 
*5.5 
Macleod Harbor and Naked Island. 
.08 
.048 
1. 7 
Elrington Passage and Eshamy 
Macleod Harbor and Port Fidalgo. _ . 
.28 
.048 
*5.8 
.07 
.043 
1.6 
Snug Harbor and Eshamy Bay 
. 28 
. 045 
*6. 2 
Elrington Passage and McClure 
Snug Harbor and McClure Bay 
.35 
.042 
*8.3 
. 14 
.038 
3.7 
Snug Harbor and Naked Island 
.25 
.049 
*5. 1 
Elrington Passage and Naked Is- 
Snug Harbor and Port Fidalgo 
,ii 
.049 
2.2 
.04 
.047 
.9 
Eshamy Bay and McClure Bay 
.07 
. 046 
1. 5 
Elrington Passage and Port Fidalgo.. 
.32 
.047 
*6.8 
Eshamy Bay and Naked Island 
.03 
.053 
.6 
Puget Bay and Macleod Harbor 
.27 
.047 
*5.7 
Eshamy Bay and Port Fidalgo 
.39 
.053 
*7.4 
. 10 
.057 
1.8 
McClure Bay and Naked Island 
. 10 
. 050 
9 O 
.38 
.052 
*7.3 
McClure Bay and Port Fidalgo 
. 46 
. 050 
*Q O 
.45 
.048 
*9.4 
Naked Island and Port Fidalgo 
. 36 
.057 
*6.3 
Puget Bay and Naked Island 
.35 
.055 
*6.4 
In the Cook Inlet and Kodiak- Afognak districts (Table 15) the extreme dif- 
ferences between localities are slightly less than in Prince William Sound, but there 
are several differences of probable statistical significance. Dogfish Bay differs 
from both Kachemak Bay and Shuyak Strait, the two nearest localities, by four 
97241—30 3 
