engleski

Distribution patterns of monosaccharides and polysaccharides in the northern Adriatic

Distribution of carbohydrates (CHO) was studied in the northern Adriatic during major phytoplankton blooms from October 1993 to September 1994. Total carbohydrates (TCHO) and monosaccharides (MCHO) were determined directly, using the MBTH-method, while the concentration of polysaccharides (PCHO) was calculated as their difference. Phytoplankton biomass was characterised by determining chlorophyll and carotenoid pigments using an HPLC technique. The TCHO concentration varied from 70 ľg C/l to 1300 ľg C/l with significantly enhanced values in the surface layer. Carbohydrates were found mainly in the form of PCHO (up to 92 % of TCHO), and their spatial distribution suggested a link to the crop and physiological status of phytoplankton.

organic matter; phytoplankton; pigments; Adriatic sea

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