T. M. BEASLEY, T. A. JOKRELA and R. J. EAGLE
\TES
Table 1. Radionuclide concentrations in fish protein concentrates
shes. Manganese-54
lue to physical decay)
nerally higher.
The
the concentrates was
ght. Lead-210 and
le to those reported
exception of the anxern California coast.
dis/min/g dry weight
s confirmed by the
his sample by C. W.
ctor Testing Station.
wasat first surprising,
yzed various organs
) of fresh anchovy
aury (Cololabis satra)
yution of the 74%Po,
i these fishes. Both
> fishes whose dict
nic crustacea {67
hat in these fishes the
“19Pb activity, as well
1 the internal organs,
, stomach contents and
yleen, kidney, stomach
mber in parenthesis
“ specimens analyzed.
‘rrved makes the 7!°Po
concentrate less surstable lead content of
liver substantiates the
ound in the anchovy
Sample
yy Ter Haar ef ail.,{®
{ rain waters collected
-d States.
ave recently summarof alpha radioactivity
and water collected
ugh Shannon did not
ing of either ##°Pb or
organs of the pelagic
observe a mean 7©Po/
157 for whole fishes.
ratios for the internal
ury reported in ‘Table 3
Catch
date
Location
Menhaden
(Brevoortia
tyrannus)
Radionuclide concentrations (dis/min/g dry weight}
10K
54Min
137Cs
n.d.
0.05 £0.05
Chesapeake June, 69 10.7 +0.6
Bay
Menhaden
Chespeake June, 69
(Brevoartia
tyrannus)
Menhaden
(Breveortia
Bay
tyrannus
Menhaden
Chesapeake June, 69
Eyrannus
Ocean Pout
Mass.
JjJan., 69
(Brevaartia
2.2+0.2
9.540.6 0.07 4.0.05 0.2540.05 0.40.2 0.25+0.02
1.0+0.2
Atlantic herring
0.09+4+0.05
nd.
0.1940.05
1.3+40.2
1.140.6 0.234002
4,640.2
9.1-+0.5
n.d.
0.16-+.0.04
1.3-+0.5 0.17+4+6.08
1.5+0.02
Lake
April, 69 12.4-£0.5 0.05+0.04 0.06 +0.04 10.7--0.3 0.1640.04
3.2 40.07
Miss.
Coast
May, 69 {0.4 40.5 0.06+0.04 0.06+6,04
South
Jan.,69
California
Coast
(Clifca harengus
harengus)
n.d.
0.49-0.09
Michigan
harengus}
Gulf Menhaden
(Brevoortia
patronus)
Anchovy
(L£ngraulis
mordax)
210Po
n.d.
Coast
(Alosa pseudo
210Ph
10.041.2
Bay
(Macro zearces
americanus)
Alewife
o5Fe
0.3+0.2 0.18+4+0.02
Chespeake June, 69 10.4+0.6
Bay
Mass.
Coast
Nov., 68
8.0 40.4 0.15+0.05
11.9+0.5
n.d,
0.9+0.4
1440.3
3.740.2
n.d.
6.7 +0.6 0.744-0.08 57.7 +0.5
n.d.
11.2+0.8 0.074-0.02
0.2 +0.06
n.d. not detectable.
pecific activities (dis./
1Ovy tissue range from
specific activity of the
ig 0.09. These values,
nd other concentrates
wate the range of lead
317
Zable 2. Polonium-210, Lead-210 and stable lead in pelagic fishes
Sample
Anchovy
(Eneraulis
mordax)
Saury
(Cololabis
saira’
Location
Collection
date
Oregon Coast
27 May
(46°30°)
(124°14")
California
Coast
(35°10°5
(122°23")
1969
Radionuclide Concentration
‘Lissue
Muscle (13)
Bone (13)
Liver (10)
WViscera (10)
Stomach
16 Sept.
1969
contents (10)
Eviscerated
whole fish (31)
Muscle (19)
Bone (19)
Liver (19)
Viscera (19)
Stomach
contents (13)
(dis/min/g¢ dry weight)
210Po
20Pb
1.6 + 0.1
20 = 03
255.2 — 19.2
<Q]
20 +03
1.2 4. 0.4
Stable Lead
(uefe dry
weight)
0.2
26.6
10.1
158.9 =. 6.3
29.) -4- 3.4
1.3 | 0.08
2.5 + 1.0
<O.1
<0.1
6.7 + 0.8
0.12 =- 0.05
0.4
4.3 = 0.3
<O.i4
0.9 -- G2
53.1 + 9.0
Li4.} = 7.9
95.0 -- 6.2
12 £03
er
a.
- pac
*
»
0.2
0.9 =a. 0.2
0.5 += 0.2
1.1 -4 Git
“*
5.0
3.9
<O.1
3.5