Synopsis of Biological Data on the Chum Salmon, Oncorhynchus keta

Period
Table 49.--Percentage <strong>of</strong> world catch <strong>of</strong> chum salmon taken by each country
[Percentage calculations were made from data in tables 47 and 48]
Catch <strong>of</strong> chum salmon
Japan U.S.S.R. United States Canada Total
- -- - - - - - - - Percent - - - - - - - - - - Millions <strong>of</strong> Fish
1940-45 31.9 36.7 22.1 9.3 279.6
1946-50 8.7 55.4 21.4 14.5 192.5
1951-55 29.8 42.3 18.0 9.9 206 . 8
1956-60 52.2 28.5 14.3 5.0 239.7
1961-64 55.1 23.9 16.7 4.3 152.9
Table 50.--Percentage contribution by area to the total coastal catch <strong>of</strong> chum
salmon in Asia (Sano) 1967)
Year Kamchatka
Peninsula
Northern
coast <strong>of</strong>
the Sea <strong>of</strong>
Amur
IUver
Sakhalin
coast
Primore
coast
Japanese
coast
1955
- - - -
37.6
Okhotsk
- - - -
28.4
Percent
16.9
- - - -
7.3 0.2 9. 6
1956 28.3 43.7
1957 15.3 35.6
1958 13.3 31.6
1959 34.0 26 .7
1960 14.3 43.0
Average 23.8 34.8
salmon fishery expanded. A summary <strong>of</strong> the
contribution <strong>of</strong> various areas to the Asian
catch in prewar years (Committee on Biology
and Research, 1961) showed that the Kamchatka
Peninsula provided the largest catches
(about 25 million fish annually). The northern
coast <strong>of</strong> the Sea <strong>of</strong> Okhotsk also produced
great numbers <strong>of</strong> chum salmon in this period
(about 11 million annually). The Amur River,
and rivers in Sakhalin, Hokkaido, and Honshu
provided a similar annual yield <strong>of</strong> about 10.5
million fish (7.5 million from the Amur and
3.0 million from the other rivers). In more
17 .6 4.0 .1 6. 3
13.9 13.3 21.9
25.4 6.4 23 . 3
24.3 1.8 13.2
29.7 1.9 11.1
21.3 5.8 14 . 2
72
recent years (table 50), catches along the
coast <strong>of</strong> Kamchatka have been less important;
the largest annual yields for most years have
been from the northern coast <strong>of</strong> the Sea <strong>of</strong>
Okhotsk.
In North America, the commercial catches
are rather evenly divided between central
Alaska, southeastern Alaska, and the area
from British Columbia southward (Shepard et
a1., 1967). Northern Alaska streams (north
<strong>of</strong> Bristol Bay) have substantial rWlS that are
used by the Alaska natives.