Distribution of Persistent Organic Pollutants and Mercury in Freshwater Ecosystems Under Changing Climate Conditions - Climate Change Impacts on Freshwater Ecosystems - page 194

(a)

10

B L
P 5

T2

P4

N1

1

P2

T1

GK

N2

P3

R 2 = 0.539

P1

0.1

280 278 276 274 272

Annual temperature (K)

(b)

100

GK

N2

T2

10

P4

P5

P2 BL

P3 T1

P1 N1

R 2 = 0.445

1

280 278 276 274 272

Annual temperature (K)

Figure 8.9 Correlation between (a) Cyp1A expression values and (b) total PCB content
is Salmo trutta and the reciprocal of absolute year average temperatures for different
European lakes. The X -axis represents temperature values, instead of their reciprocals, to
facilitate reading. Dots represent average values for all fish from each lake; bars
represent standard deviations. In both graphs, regression lines and correlation coefficient
values were calculated between logarithmic transformants of gene expression or PCB
contents, depending on the graph, and the reciprocal of absolute temperatures
(discontinuous lines and R 2 values on the graphs). Different lakes are labelled according
their geographic situation: P1-P5, lakes from the Pyrenees; T1 and T2, lakes from the
Tatras; N1 and N2, lakes from central Norway; GK, lake from Austrian Alps; BL, lake from
the Rila Mountains.