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A comparison of primary production measurements using two laboratory systems with differences in light quality

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Abstract

Primary production measurements were carried out simultaneously, using two laboratory systems with different light conditions: (1) a'classical' incubator and (2) a Laboratory Scale Enclosure. The model used for calculating primary production (STEELE, 1965) does not correct for spectral changes caused by high phytoplankton biomass. In the incubator, light of almost all wavelengths decreased more or less according to the attenuation of total PhAR in water. In the LSE, high absorption was found of the blue light and some of the red light, which was due to the high sestonic concentration. The Steele function provided a good fit for both sets of data. The depth integrated gross production values derived from the simultaneous measurements were not significantly different.

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Rijkeboer, M., De Kloet, W.A. & Gons, H.J. A comparison of primary production measurements using two laboratory systems with differences in light quality. Hydrobiological Bulletin 20, 93–99 (1986). https://doi.org/10.1007/BF02291154

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