378
L. Pellerito· R. Barbieri . R. Di Stefano . M. Scopelliti . C. Pellerito . T. Fiore . F. Triolo
An analogous investigation has been carried out by using GC-MS on the livers of
21 beluga whales found dead and stranded along the shores of st. Lawrence Estuary
and Hudson Strait (northern Quebec), during the 1995-1998 period (St-Louis et al.
2000).
Table 15.21. Concentrations of butyltin compounds in beluga liver samples
Sample"
Concentration (n9 Sn 9-' dwt)
MBT
DBT
TBT
~BTs
TBTIDBT
St.Lawrence Estuary
9507, M, 0,199
132
111
244
0.8
9508, F, 0, 157
7
57
67
130
1.2
9509, M, 1.5,247
26
735
116
877
0.2
9511, M, 26+,419
399
282
84
764
0.3
9512, M, 11,400
6
53
8
66
0.2
9601, F, 21+, 427
9
250
22
281
0.1
9602, F, 5, 325
9
45
0
54
9604, M, 16+,420
0
96
0
96
9607, M, 24+, 399
11
100
0
111
9608,F,1,2,216
17
137
0
153
9609, M, 23++, 393
23
188
0
210
9701, M, 8, 396
7
229
101
336
0.4
9702, F, 28,5, 338
7
141
58
205
0.4
9703, F, 21 +, 363
6
1613
467
2085
0.3
9704 b , M, 0,139
9
12
15
36
1.2
9705, M, 7.5, 378
14
160
40
214
0.3
9706, F, 31.5+, 385
10
716
308
1034
0.4
9802, M, N/A, 401
9
294
14
316
0.1
9803, F, N/A, 377
27
289
27
342
0.1
9804, F, N/A, 356
16
208
0
224
9806, F, N/ A, 388
16
54
28
98
0.5
Hudson Strait
98348,M, 17, N/ A
N.d.
N.d.
N.d.
98349,F, 11, N/ A
N.d.
N.d.
N.d.
98358, M, N/A, N/A
N.d.
N.d.
N.d.
98359, F, > 15, N/ A
N.d.
N.d.
N.d.
98482, F, N/A, N/A
N.d.
N.d.
N.d.
~ The first two digits indicate the year when the whale was found stranded.
This beluga whale was a neonate.
NIA = not available.
N.d. = not detected, adapted from St-Louis et al. (2000).