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Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

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Figure 5.1. Water Quality Index scores vs time for the four habitat types in the <strong>Fraser</strong> <strong>River</strong> Basinfor the period 1960−2010.Water Quality Index100806040200Spawning Areas (Aug − May)●●● ●●● ●● ●●●● ● ● ● ●● ●●● ● ● ●●● ●●●●●● ● ●●●●●●● ● ● ●● ●●●●●●●●●● ● ● ●●●● ● ● ●●1960 1970 1980 1990 2000 2010Water Quality Index100806040200Rearing Areas (All Year)●●●●● ●●● ●●●●●●● ●●●●●● ●● ●●●●●●● ● ● ●● ●●● ● ● ●● ●●●● ●● ● ● ● ● ●●●●●1960 1970 1980 1990 2000 2010Water Quality Index100806040200●●● ●●●●● ●●●●●● ● ●●●●●●●●● ●● ●●● ●●●●●● ● ●●●●●●●●● ● ● ●● ● ● ●●● ● ●●Outmigrati<strong>on</strong> Route (May − June)1960 1970 1980 1990 2000 2010Water Quality Index100806040200●●●●●●●●●●●● ●●●●● ● ●●●●●●●●●●●●●●●●●●●●●●●● ● ●● ● ●●●●●●●● ●●● ●●●Upstream Migrati<strong>on</strong> Route (June − Sept)1960 1970 1980 1990 2000 2010Year <str<strong>on</strong>g>of</str<strong>on</strong>g> Observati<strong>on</strong>F-64

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