SALMON MARKING REVEALS MIGRATION COURSE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600270304-4
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: September 15, 2011
• Sequence Number: 304
• Publication Date: December 19, 1949
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/09/19: CIA-RDP80-00809A000600270304-4
50X1-HUM
C0 'IDFdTIAI ?~ 6 .a, e ? 1
CENTRAL INTELLIGENCE AGENCY REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
COUNTRY us s
SUBJECT Economic Fishing
HOW
PUBLISHED gnthly periodical.
WHERE
PUBLISHED Moscow
DATE
PUBLISHED 3ep 1949
LANGUAGE
DATE OF
INFORMATION 1949
DATE !FIST.)/` Dec 3,949
NO. OF PAGES 2
SUPPLEMENT TO
REPORT NO.
MIS DOES INNT CONTAINS INCOSNATIOS A/YNCTINN Till NATIONSI. DNI(NNN
OF US SNITNO STATUS ?ITMIS it NIANINO OF NN.IONMN ACT ND
U.S.C.. NI AMS Ye.U ANNNS[D. ITS TUNNNCpION ON nIN ONCNLAtIoN
Or In COSTNSt IN ANT NA.... TO AN ONAOTMO.:ZNS FUSION IN .NO-
THIS IS UNEVALUATED INFORMATION
To ascertain the waterways used by anadromous salmon tgoing to spawn along
Se alin shares, in 1947 the Sakhalin branch of the TIDRtO (Pacific Ocean Scientific
Research Institute of Fish Economy and Oceano~a'aphy) carried out a plan to mark
nature htmpback salmon (Oneorhynchue gorbusha). The marking was done in the
fixed seine in Antonova in the Tablochnyy Fish Combine region.
A bright red four-cornered marker (1i' x 2j centimeters) was quickly fn
to the tail by a thin copper wire. Turned loose into the sea, the fish headedd
as was expected, in the direction of Taterskiy Straits. Of the 500 fish marked,
only one returned to the area where the king had been done. The remaining
marked salmon were caught outside the marking area.
At the appropriate time the fishermen were informed of the need to mark fish.
As a result, it was possible to gather from the industrial catches 68 marked
humpback salmon, constituting 13.6 percent of the marked fish. Of these, 75
percent had migrated southward and 25 percent northward along the western shore
of Sakhalin. Of these 63 marked fish 67 were caught in ocean fishing areas and
only one in a river.
Similar results were obtained in 1938 when Japanese research workers marked
hummback salmon miaratina along the western lehores of the southern half of
Sakhalin Island. It was found that about 70 percent of the marked fish caught
'lad migrated south of the m rkinng area and about 30 percent to the north. A fay
fish were csoltt in the area where the marking had been done.
In both cases the largest number of marked fish was caught in the areas
just north and especially just south of the sia'king area. In addition to this,
in 1947, four marked fish were caught .in Anl,a Day and one along the eastern
shore of South Sakhalin, in the area of the old Starodub Fish Combine. Exactly
the sand thing occurred in 1938 when one marked humpback salmon was caught in
C V~Ii MJ?aYi d ..
CLASSIFICATION
Y NsTT ne I-
Sanitized Copy Approved for Release 2011/09/19: CIA-RDP80-00809A000600270304-4
 Sanitized Copy Approved for Release 2011/09/19: CIA-RDP8O-00809AO00600270304-4
Zaliv Terpeniya (Taraika Bay) in the Porox>ay River. Judging by rather question-
able information,, it is believed that in 1947, individual marked salmon were
caught in fixed seines in the northern half of Sakhalin. However, this cannot
be proved ac the markings on the fidh were lost.
It should be especially notices, however, that one marked humpback salmon
was cant at Innokent'evskiy Bight, slightly south of Sovetskaya Oavan', in
?rimcrakiy $ray, a considerable distance from Sakhalin waters. On the basis of
The catching of marked salmon in Primorskiy tray (Innokent'evskiy Bight)
off the eastern Sakhalin shore, and in Zaliv Terpeniye indicates that humpback
ing. From the marking area alone the salmon swam a distance up to 700 kilo-
meters, going through the Japanese and Okhotsk seas. There is a possibility
that along the western shores of South Sakhalin there m be found migrating
humpback salmon going to spawn in rivers In Primorskly tray.
) G AT11 OF HJWBAOZ SALMON
ALOH(1 SHORES OF SOUTH SASBALIN
CON
SIMM-Sanitized Copy Approved for Release 2011/09/19: CIA-RDP8O-00809AO00600270304-4