Biology Reference
In-Depth Information
(a)
Site 7
Site 8
Site 9
Site 10
Site 11
Site 12
80
70
60
50
40
30
20
10
0
1987 1990 1991 1993 1995 1997 1999 2001 2004 2007 2009 2011
(b)
6
5
4
3
2
1
0
1987 1990 1991 1993 1995 1997 1999 2001 2004 2007 2009 2011
(c)
100
90
80
70
60
50
40
30
20
10
0
1987 1990 1991 1993 1995 1997 1999 2001 2004 2007 2009 2011
Year
FIGURE 9.6
Temporal trend in dogwhelk imposex metrics RPSI, (a) VDSI (b) and incidence of sterile females in populations
(c) at six monitoring sites inside Sullom Voe where populations have been most heavily affected by exposure to
TBT. See Figure 9.5 for site location details.
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