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Table 1

Pigments content and photosynthetic activity of phytoplankton in the littoral of Lake Hupujarvi for the period May–September 2016.

Index а k k/a PP DAN
μg · L−1 μg · L−1 mgО2 · L−1 per day mgС · mgа−1
Mean ± standard deviation (whole season) 6.22 ±2.211 6.16 ± 2.139 1.01 ± 0.199 0.66 ± 0.449 41.04
Variation limits 4.00–9.88 3.93–9.54 0.81–1.29 0.17–1.39 5.38–107.83

Abbreviations: а: chlorophyll a; k: carotenoids; PP: primary production; DAN: daily assimilation number. For DAN, the calculation of standard deviation is meaningless because of a naturally wide range of variation spanning one order of magnitude.

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