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FA229: A Beginner's Guide to Water Management—Common Aquatic Birds Using Florida Lakes

Figure 29. Mean chlorophyll concentration for the lakes on which an aquatic bird species was observed. The middle line (green) is the mean and the upper line (blue) and lower line (red) are the corresponding upper and lower 95% confidence limits for those data. The horizontal bold line is the grand mean chlorophyll for all 114 lakes with chlorophyll data.