195
If the Hanford Works was responsible for eclininating the salmon,
we would ezpoct this particular lesal population, which is highly
specialised for this particular area, perhaps, would disappear.
12 the numbors of Fish which keep returning here romain about
the same, well, things just probably can't be tco coygone bad.
which we
Q
nests
oz nests cach yeor.
have seen,
If we
vabers of
B
ss)
9
@
Vaal
This shows an analysis of th
ssune that the year the parent
o
ft
©
ws
(S1i
mmber
G)
@
We have counted thes
fish spa, 1347, 1648, 1949, 1950 -- is noznal, ard we use this
ing) wo can compara hov many nests were
cr
¢.a
eas a sero line (indice
”
available when these offsprins came back, and we can determina
herve (indicating) if our assunptions ara right.
of course, lots of if's here.
There are,
Then, we should know if this
population is remaining the sams for going downhill,
These
fish are four years eld when they spam, co each four years
there is a diiferent population that has to be considered
independently of those which spawn the year before or the year
after.
This is what haypened,
The fish which spawned in 1947
profuced offisvring which came back.
There were a few nore
nests in 1951 than thers wero in the parent year of 1947.
Every
year artter that, there have been a fevsr nests than in the parent
year.
Again, this dess not really mean anything unless we compare
this with wnat Is hangening to the Columbia River population cs
awnole,
Thoy are going down over a series of dams and going out
into the oven.
Many have beon cisapncaring there, So, we have te