-19-
permitted comparison, the data are shown separately, and other
'f plank-
aata appear in columns headed with question marks for mesh,
usually either No. 6 of 74/inch or No. 20 of 173/inch.
8 as
{ty per unit weight in coarse mesh to that in fine (No.6/No.20,
. the
S in-
vity of
Table 9 shows for the paired tows the ratio of the activ-
on both a wet and ash weight basis.
Table 9.
Ratio of radicectivity in tows vith coarse mesh to fine seeh
(#620) on vet and ash weight beseea.
te
1958
5A9
e
¢
lke
Deep
Ve:
Wet
Asb
Wet
Ash
88
1.41
33°
(55
Ash
6/9
27)
488
2.25
2.39
T/4
95
.96
+21
625
9A
3.62
1.39
1.18
10/1e2
-36
47
11/6
+32)
3.56
11/26
-49°«1.23
Wet
7
12/26
+33)
(661
-85
-62
1.62
4.21
11/27
42
12/17
18
Ash
«49
-67
Wet
98
Ash
21.21
2:
Wet
Ash
«TT
2.00
1.78
3.95
1.18
8.86
3.67
-59
.70
1.61
1.77
12.0
6.21
.78
55
80
6.41
2.92
6.8
1.43
42)
«wT:
1.38
1.32
«660
-36
8
12/3
Wet
Wide
2
ce
-038
86.89
11/27
Date from Tables 7 and 9.
1.12
1.09.89:
9
1.39
1.2%
2.20
1.38 1.65
WS
1.57
1.13
1.68
-83
«AR
O85
1.97
1.32
1.69
7.50
6.56
21)
«21.02
Between the northern localities of Belle Island and the
im
owe
|
Mike crater and the southern localities of Wide Passage and
Leroy Island, there was a difference using the t test,
significant at the 2% level on the ash basis.
The reason is
not apparent for this association of high counts with fine
mesh nets at northern, and with coarse at the southern and
western localities.
Whereas, in 1952 (WT-616) significantly higher radioac-
tivity occurred in fine mesh net hauls than in coarse, the
present data show wide variation.
On the wet basis the coarse
mesh was higher in 18 pairs and the fine mesh in 25 pairs,
while on the ash basis the figures were reversed,
the coarse
mesh was higher in 25 pairs and the fine mesh in 18 pairs.
Thus, neither wet nor ash basis showed a significant difference due to mesh size.
ee ge
PT mg me ee a
mere metenee ne rete ae