. w 0 1ââ âIââ¢âIâ'âIââ âIâ'âIââ âI JFMAMJJASOND Days Figure 18. Seasonal abundance of calanoid copepods in 1972 (open symbols) and 1988 (closed symbols) at the Mid-Lake Deep station in Flathead Lake. Densities were calculated by summing up incremental 10m hauls from 50m to the surface.

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