Dissolved organic carbon in lakes

FIGURE 1 Detrital structure and primary fluxes of dissolved organic carbon in lake ecosystems with the food-web structure of predominantly pelagic components (box) that reflects the importance of the microbiota, the microbial loop, and physical processes by which most other organic matter inputs are metabolized heterotrophically or degraded by physical processes. DOM denotes dissolved organic matter, with labile (LDOM) and recalcitrant (RDOM) components POM denotes particulate organic matter. 

FIGURE 2 Common sources of organic carbon and rates of mineralization of labile (LDOC) and recalcitrant (RDOC) dissolved organic carbon in lakes and streams. 

Goulden, P.D. and Brooksbank, P., 1975. Automated determination of dissolved organic carbon in lake water. Anal. Chem., 47 1943 -1946. 

Ma, X.D. and Green, S.A. (2004). Photochemical transformation of dissolved organic carbon in Lake Superior - An in-situ experiment. J. Great Lakes Res., 30,97-112. 

Driscoll, C.T., V. Blette, C. Yan, C.L. Schofield, R. Munson, and J. Holsapple. 1995. The role of dissolved organic carbon in the chemistry and bioavailability of mercury in remote Adirondack lakes. Water Air Soil Pollut. 80 499-508. 

Table II, Concentrations of Dissolved Inorganic Carbon, Dissolved C02, and Dissolved Organic Carbon in Surface Waters of Lake N2...

Ujiie et al. [204] fabricated quartz chips for NCE and reported the separation of rhodamine B and sulforhodamine at 14.4 and 66.6 cm separator lengths. The buffer was 20 mM phosphate buffer at 2kV applied voltage and the separation was achieved in 70 seconds. Wakida et al. [205] reported a high throughput characterization for dissolved organic carbon in environmental waters within 2 minutes using NCE. The authors collected water samples from 10 sampling points at the Hino River that flows into Lake Biwa. Shin et al. [206] described NCE (PDMS) with fluorescence detection for analyses of atrazine. 

Cole, J. J., W. H. McDowell, and G. E. Likens. 1984. Sources and molecular weight of dissolved organic carbon in an oligotrophic lake. Oikos 42 1-9. 

De Haan, H., and T. de Boer. 1986. Geochemical aspects of aqueous iron, phosphorus and dissolved organic carbon in the humic Lake Tjeukemeer, the Netherlands. Freshwater Biology 16 661—672. 

Hessen, D. O. 1992. Dissolved organic carbon in a humic lake effects on bacterial production and respiration. Hydrobiologia 229 115—123. 

Markosova, R. 1991. Growth of bacterioplankton on dissolved organic carbon in Hamilton Harbor and Western Lake Ontario. Water Pollution Research Journal of Canada 26 173-185. 

Sondergaard, M. 1984. Dissolved organic carbon in Danish lakes Concentration, composition,... 

Vahatalo, A. V., M. Salkinoja-Salonen, P. Taalas, and K. Salonen. 2000. Spectrum of the quantum yield for photochemical mineralization of dissolved organic carbon in a humic lake. Limnology and Oceanography 45 664-676. 

Argyrou, M.E., Bianchi, T.S., and Lambert, C.D. (1997) Transport and fate of dissolved organic carbon in the Lake Pontchartrain estuary, Louisiana, USA. Biogeochemistry... 

Zuo Y, Jones RD (1997) Photochemistry of Natural Dissolved Organic Matter in Lake and Wetland Waters-Production of Carbon Monoxide, Wat. Res. 31, No. 4 850-858. 

Morris D. P. and Hargreaves B. R. (1997) The role of photochemical degradation of dissolved organic carbon in regulating the UV transparency of three lakes on the Pocono Plateau. Limnol. Oceanogr. 42, 239-249. 

Zuo Y. and Jones R. D. (1997) Photochemistry of natural dissolved organic matter in lake and wetland waters— production of carbon monoxide. Water Res. 31, 850-858. 

P.A. Bukaveckas, M. Robbins-Forbes (2000). Role of dissolved organic carbon in the attenuation of photosynthetically active and ultraviolet radiation in Adirondack lakes. Freshwat. Biol., 43, 339-354. 

A. Perez-Fuentetaja, D.J. Dillon, N.D. Yan, D.J. McQueen (1999). Significance of dissolved organic carbon in the prediction of themocline depth in small Canadian shield lakes. Aquat. Ecol, 33,127-133. 

L.A. Molot, P.J. Dillon (1997). Photolytic regulation of dissolved organic carbon in northern lakes. Global Biogeochem. Cycles, 11, 357-365. 

Maloney, K.O., Morris, D.P., Moses, (7.O., and Osbum, C.L. (2005). The role of iron and dissolved organic carbon in the absorption of ultraviolet radiation in humic lake water. 

A number of freshwater lakes were surveyed for concentrations of plutonium, the ratio of its upper to lower oxidation states, pH, and the concentration of dissolved organic carbon (DOC), which are shown in Table 11(11). 

Miskimmin BM, Rudd JWM, Kelly CA. 1992. Influence of dissolved organic carbon, pH, and microbial respiration rates on mercury methylation and demethylation in lake water. Can J Fish Aquat Sci 49 17-22. 

Welsh, P.G., J.F. Skidmore, D.J. Spry, D.G. Dixon, P.V. Hodson, N.J. Hutchinson, and B.E. Hickie. 1993. Effect of pH and dissolved organic carbon on the toxicity of copper to larval fathead minnow (Pimephales promelas) in natural lake waters of low alkalinity. Canad. Jour. Fish. Aquat. Sci. 50 1356-1362. 

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