Studies on the photosynthetic pigments and their decomposition in the sediment of Lake Balaton and Lake Belső

Oláh, János (1972) Studies on the photosynthetic pigments and their decomposition in the sediment of Lake Balaton and Lake Belső. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 39. pp. 115-121. ISSN 0365-3005

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Abstract

1. In the examination period the chlorophyll-a content of the mud surface in Lake Balaton was 29-71 mg/m². The Moss and Tietjen ratios as well as the absorption spectra and the phaeo-pigment content computed by using the equation of Lorenzen showed that a large proportion of the pigments was in an active condition. These results suggest that the contribution of the microphytobenthos to the primary production of the lake is considerable. 2. The chlorophyll-a content of the superficial layer of the mud in the highly eutrophic Lake Belső was 66 mg/m², with a highest proportion of phaeopigments. In the upper 12 cm layer of mud the pigments were of homogeneous distribution. The phaeo-pigments are suggested to originate from the rich phytoplankton, and their destruction is retarded by the semi-anaerobic condition of the watersediment interface.

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