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Fig. 6 | Helgoland Marine Research

Fig. 6

From: Influence of light quality and gassing on the vertical migration of diatoms inhabiting the Wadden Sea

Fig. 6

Histogram showing the influence of flushing the sediment surfaces with either air (A) or the gasses oxygen (O 2 ), nitrogen (N 2 ) or carbon dioxide (CO 2 ) either in the light (L) or dark (D). The relative cell density per unit area is expressed as a % (±SD) of the control (A/L) which was set to 100% in each experiment and thus is shown without SD. t o Cell density immediately after mixing the sediment samples

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Helgoland Marine Research

ISSN: 1438-3888

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