Carbon metabolism in a humic lake: pool sizes and cycling through zooplankton
Hessen, D.O.; Andersen, T.; Lyche, A. (1990). Carbon metabolism in a humic lake: pool sizes and cycling through zooplankton. Limnol. Oceanogr. 35(1): 84-99
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Waco, Tex., etc. ISSN 0024-3590; e-ISSN 1939-5590, more
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| Keywords |
Acids > Organic compounds > Organic acids > Humic acids
Aquatic communities > Plankton > Zooplankton
Detritus
Organic matter > Carbon > Organic carbon > Dissolved organic matter > Dissolved organic carbon
Organic matter > Particulates > Particulate organic matter > Organic carbon > Particulate organic carbon
Water bodies > Inland waters > Lakes
Fresh water |
| Authors | | Top |
- Hessen, D.O.
- Andersen, T.
- Lyche, A.
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| Abstract |
To characterize the major carbon pathways in a humic lake, we determined carbon pool sizes and main pathways by long-term tracer studies in enclosures. Dissolved organic carbon (DOC) was by far the largest pool and constituted 80-85% of total carbon. In the water column particulate organic carbon was partitioned between detritus, zooplankton, bacteria, and phytoplankton at ratios of 22:4:3:1. Detritus was found to support of 46-82% of body carbon in the surveyed species, with Acanthodiaptomus as the upper extreme. Bacterial carbon accounted for 11-42% of body carbon and phytoplankton for 6-19% in the surveyed species. |
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