Characterization of phytoplankton extracellular products (PDOC) and their subsequent uptake by heterotrophic organisms in a mesotrophic forest lake
- 1 January 1989
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Plankton Research
- Vol. 11 (3) , 463-486
- https://doi.org/10.1093/plankt/11.3.463
Abstract
The magnitude of phytoplankton release of photosynthetically produced dissolved organic carbon (PDOC), the size distribution and chemical nature of the released substances, and the quantity and composition of PDOC that were immediately assimilated by heterotrophic bacteria were investigated in a meso- to oligotrophic, mesohumic forest lake by means of the 14CO2 technique. The percentage extracellular release (PER) was comparatively high (up to ˜40%). The bulk of the released substances was of high mol. wt (>5000 dalton), with a minor contribution from low mol. wt (14CO2 method to assess phytoplankton release of PDOC is critically evaluated and discussed.This publication has 1 reference indexed in Scilit:
- The Use of Radio-active Carbon (C14) for Measuring Organic Production in the SeaICES Journal of Marine Science, 1952