Fróðskaparrit - 01.07.2004, Page 121

KYKSILVUR í FØROYUM - EIN GJØGNUMGONGD AV TØKUM DÁTUM
119
♦ HSArsfrá. 1976/78 og
HSjournalurin'79
■ Julshamnefo/., 1987
& Caurantefo/., 1993
• AMAP Føroyar, 1997
o Olsenefo/,,2003
+ Olsenefo/,,2003
D Heilsufrøðiliga
Starvsstovan
x HS Ársfrá. 1997
x Dam og Bloch, 2000
Fig. 15 Mercury in long-
finned pilot wliale muscle is
shown, in mg/kg ww. Tlie mean
mercury for the sample pool
has been calculated from the
average distribution of muscle
from males, females and
young. (HS Ársfrág. 1976/78=
HS Annual Report 1976/78;
HS Journalurin =HS journal
1979-87 and 1987-89).
concentrations of lipid soluble persistent Recent research suggest that the food ad-
organic pollutants had been found. (HS, vice have been effective in reducing almost
1998) by a factor 10 the mercury concentration in
Hg, mg/kg ww muscle
Location Date No of whales in pod No analysed Norm. pod mean Hg * Adult males Adult females Juveniles
Vágur* 16-08-1997 108 49P 2,14 2,66 2,46 1,55
Sandavágurb 26-08-1997 165 57P 2,3 3,25 2,73 1,28
Bøurb 28-08-1997 36 35P 1,72 2,3 2,03 1,06
Hvannasundb 01-09-1997 60 50P 0,89 1,27 0,97 0,59
Tórshavn1’ 05-09-1997 39 36P 2,59 3,17 2,74 2,22
Bøurb 06-09-1997 35 35P 1,49 1,76 1,88 0,94
Bøurb 20-09-1997 158 50P 2,23 3,10 2,58 1,34
Tórshavnb 24-09-1997 157 54P 1,65 1,93 1,97 1,19
Tórshavnb 13-11-1997 81 50 2,61 2,92 3,30 1,74
Leynar15 02-12-1997 74 50 1,44 1,94 1,65 0,95
Tórshavnc 14-03-1999 131 50 1,54 1,85 1,63 1,31
Vestmannac 08-09-1999 34 22 1,99 2,06 2,49 1,46
Hvannasundc 31-08-2000 246 50P 2,44 3,07 2,86 1,62
Tórshavnc 09-09-2000 21 21 1,61 2,00 1,86 1,13
Tórshavn2 03-09-2002 42 42 2,48 3,18 3,18 1,27
* The normaliscd pod mean mercury concentration is based on the average distribution of adults
and juveniles, males and females (Bloch et al„ 1993b).
p These samples were analysed in three pooled samples consisting of adult males, adult females and juveniles of both sexes.
Table 15 Mercury in pilot whales analysed since 1997 (a. Larsen and Dam, 1999, b. Dam and Bloch, 2000 c.
Olsen et al„ 2003; d: Heilsufrødiliga starvsstovan, 2002).