ty
| tmaniieia,
a
AO RGSS
SUMMARY OF OPERATIONS OM CONTRACT WO. W-28-094~eng-33
FOR THE MONTH OF DECEMBER 1946
Work continued on all. phases of our project with the collection of ,
data for report writing receiving the major effort.
Ie
\e
|
E 7 i
Applied Fisheries Laboratory at the University of Washington
1.
- i- :
The basio program of measuring the effects of the exposure of aay
aquatic. organism in various sages of development to I-rays contimad.
° Ess
+Sections I and II
oc Not Authorized for Public Retease
By
Date.
data on the return of irradiated fish from the sea and the analysis of
One additional spawning male chinook salmon was recovered
during the month in the Samish River.
This recovery brings
the total spammers recovered to twenty three.
These fish were
produced by parents that were exposed to Ierays (100 r), prior
to spawning in October of 1943, or from "control" fish.
Four of the fish recovered were females from which the
y
eggs were removed and fertilized with sperm from a male
leo 8 |
chinook with a similar history of treatment.
aluetetd
of eggs recsived are being incubated and data are being gathered
s\sseeeted
on the different mortalities, development, etc. From fer-
geecebeee
tilization to the "eyed" stage the eggs produced from the progeny
OF ENE
myo -
The four lots
|
‘of the 100 r parents have experienced a moh higher mortality
SINGLE REVIEW AUT
0!EPART MENT
than those from the "controls".
Section TIT and IV
The ran of adult sockeye salmon entering Cultus Lake, BCé
has been continuously inspected.for marked fish, It was thought
that some of the marked fingerling fish released into the lake,
#Section numbers refer to the Project Chronology Chart, revised Jamary 2, 1946.
atytn nestmahBe
oe
—