Figure 2: Relationship between total phosphorus (TP) and total nitrogen (TN) for shallow lakes (≤ 10 m maximum depth) and deep lakes (> 10 m maximum depth)
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Note: Dashed lines demarcate N:P ratios of 7:1 (below which algal growth is N-limited) and 15:1 (above which algal growth is P-limited). When both are high, growth is probably not nutrient-limited.
Text description of figure
Correlation (scatter) plot of TN (axis range: 10-10,000 mg/m3) against TP (axis range: 1-1000 mg/m3) with data points shaded according to whether depth of lake is greater than or less than 10 m. Data are highly correlated with strong pattern of shallow lakes having higher TN and TP than deeper lakes.
