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  The development of a natural plankton population in an outdoor tank with nutrient-poor sea water. II. Changes in dissolved carbohydrates and amino acids

Brockman, U. H., Eberlin, K., Junge, H. D., Maier-Reimer, E., & Siebers, D. (1979). The development of a natural plankton population in an outdoor tank with nutrient-poor sea water. II. Changes in dissolved carbohydrates and amino acids. Marine Ecology Progess Series, 1, 283-291.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-D624-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-D625-1
Genre: Journal Article

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 Creators:
Brockman, U. H.1, Author
Eberlin, K.1, Author
Junge, H. D.1, Author
Maier-Reimer, Ernst2, Author              
Siebers, D.1, Author
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1External Organizations, ou_persistent22              
2MPI for Meteorology, Max Planck Society, ou_913545              

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 Abstract: terrelations between plankton communities and dissolved carbohydrates and amino acids were investigated under near-natural conditions in sea water enclosed in plastic tanks. In summer 1972 the development of a natural plankton population was followed in a 3-m3 plastic tank for 28 d. In the course of this experiment, concentrations of dissolved neutral carbohydrates and free amino acids were determined. Results are in the range of published data for the open sea with respect to concentrations (0.2-2.5 pnoles dm-3 total sugar; 0.2-3.1 pnoles dm3 total amino acids) and qualitative composition. A plankton succession was observed during the experiment; this was accompanied by distinct alterations in the concentrations of dissolved amino acids and carbohydrates. Glucose and lysine occurred in highest concentrations. Maximum rate of increase was 29 nmoles dm3 h-' for glucose, and 25 nmoles dm3 h-' for lysine. The rates of decrease are in the same range as bacterial uptake rates determined by various authors employing tracer methods. Numerous positive, highly significant correlations suggest heteropoly- saccharides as one source of individual carbohydrates. Relations between certain species within the plankton succession and occurrence of dissolved organic substances were observed. Significant positive correlations existed between glucose and diatoms as well as between glucose, galactose, mannose, arabinose and ribose and phytoplankton biomass. There were also several significant positive correlations of amino acids, especially of valine, leucine and isoleucine with other biological parameters.

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Language(s): eng - English
 Dates: 1979-12-31
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
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Title: Marine Ecology Progess Series
Source Genre: Journal
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Publ. Info: Oldendorf/Luhe, Germany [etc.] : Inter-Research.
Pages: - Volume / Issue: 1 Sequence Number: - Start / End Page: 283 - 291 Identifier: ISSN: 0171-8630
CoNE: https://pure.mpg.de/cone/journals/resource/954925486754_1