Northern Delta Lakes as Summertime CO2 Absorbers Within the Arctic Landscape

Abstract

The vast majority of lakes examined worldwide emit CO2 to the overlying atmosphere, through a process by which catchment-derived subsidies of terrigenous C, often in the form of dissolved organic carbon (DOC), augment within-lake CO2 production above the level consumed via photosynthesis. We show that shallow, macrophyte-rich lakes of the Mackenzie Delta, western Canadian Arctic, do not follow this pattern. These lakes are strong summertime CO2 absorbers, despite DOC concentrations at or above levels commonly shown to produce CO2 emission. Paradoxically, CO2 levels were lowest where DOC was greatest, in lakes which appear to be annual net CO2 absorbers, and have poor hydrologic connection to the terrestrial landscape. CO2 in these lakes is depleted by high macrophyte productivity, and although catchment-derived C subsidies are low, within-lake DOC generation appears to occur as a byproduct of macrophyte photosynthesis and evapoconcentration. Additionally, after accounting for DOC and macrophytes, lakes that were least connected to the larger terrestrial landscape remained weaker CO2 absorbers, suggesting that CO2 balance may also be affected by DOC quality, foodweb structure, or inputs of pCO2-rich riverwater to connected lakes. In contrast, a small subset of Delta lakes that were strongly affected by permafrost melting were CO2 emitters, suggesting future permafrost degradation could engender a change in the overall CO2 balance of these lakes from near-CO2 neutral over the ice-free season, to clear CO2 emission. Our work suggests that the current paradigm of lakewater CO2 regulation may need to specifically incorporate shallow, productive lakes, and those that are poorly connected to their surrounding landscape.

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References

  1. [ACIA] Arctic Climate Impact Assessment. 2004. Impacts of a warming arctic. Cambridge: Cambridge University Press. 139 p

  2. [APHA] American Public Health Association. 1989. Standard methods for the examination of water and wastewater, 17th edn. Washington (DC): American Public Health Association. 1470 p

  3. Bigras SC. 1990. Hydrological regime of lakes in the Mackenzie Delta, Northwest Territories, Canada. Arctic Alpine Res 22: 163–74

    Article  Google Scholar 

  4. Burnham KP, Anderson DR. 1998. Model selection and inference: a practical information-theoretic approach. New York (NY): Springer-Verlag. 353 p

  5. Cole JJ, Caraco NF. 1998. Atmospheric exchange of carbon dioxide in a low-wind oligotrophic lake measured by the addition of SF6. Limnol Oceanogr 43: 647–56

    CAS  Google Scholar 

  6. Cole JJ, Caraco NF, Kling GW, Kratz TK. 1994. Carbon dioxide supersaturation in the surface waters of lakes. Science 265: 1568–70

    PubMed  Article  CAS  Google Scholar 

  7. Cole JJ, Prairie YT, Caraco NF, McDowell WH, Tranvik LJ, Striegl RG, Duarte CM, Kortelainen P, Downing JA, Middelburg JJ, Melack J. 2007. Plumbing the global carbon cycle: integrating inland waters into the terrestrial carbon budget. Ecosystems 10: 171–84

    Article  CAS  Google Scholar 

  8. Curtis PJ. 1998. Climatic and hydrologic control of DOM concentration and quality in lakes. In: Hessen DO, Tranvik LJ, Eds. Aquatic humic substances. Ecol Stud 133:93–105, Berlin: Springer-Verlag

    Google Scholar 

  9. Downing JA, Prairie YT, Cole JJ, Duarte CM, Tranvik LJ, Striegl RG, McDowell WH, Kortelainen P, Caraco NF, Melack JM, Middelburg JJ. 2006. The global abundance and size distribution of lakes, ponds, and impoundments. Limnol Oceanogr 51: 2388–97

    Google Scholar 

  10. Emmerton CA, Lesack LFW, Marsh P. 2007. Lake abundance, potential water storage, and habitat distribution in the Mackenzie River Delta, western Canadian Arctic. Water Resour Res 43:art. no. W05419

  11. Emmerton CA, Lesack LFW, Vincent WF. 2008. Mackenzie River nutrient delivery to the Arctic Ocean and effects of the Mackenzie Delta during open water conditions. Global Biogeochem Cycles 22:art. no. GB1024

  12. Hanson PC, Bade DL, Carpenter SR, Kratz TK. 2003. Lake metabolism: relationships with dissolved organic carbon and phosphorus. Limnol Oceanogr 48: 1112–9

    CAS  Google Scholar 

  13. Hanson PC, Pollard AI, Bade DL, Predick K, Carpenter SR, Foley JA. 2004. A model of carbon evasion and sedimentation in temperate lakes. Global Change Biol 10: 1285–98

    Article  Google Scholar 

  14. Hesslein RH, Rudd JWM, Kelly C, Ramlal P, Hallard KA. 1991. Carbon dioxide pressure in surface waters of Canadian lakes. In: Wilhelms SC, Gulliver JS, Eds. Air–water mass transfer: selected papers from the second international symposium on gas transfer at water surfaces. New York (NY): American Society of Civil Engineers. p 413–31

  15. Holmes RM, McClelland JW, Raymond PA, Frazer BB, Peterson BJ, Stieglitz M. 2008. Lability of DOC transported by Alaskan rivers to the Arctic Ocean. Geophys Res Lett 35:art. no. L03402

  16. Jansson M, Bergström A-K, Blomavist P, Drakare S. 2000. Allochthonous organic carbon and phytoplankton/bacterioplankton production relationships in lakes. Ecology 81: 3250–5

    Article  Google Scholar 

  17. Johnston GH, Brown RJE. 1966. Occurrence of permafrost at an arctic lake. Nature 211: 952–3

    Article  Google Scholar 

  18. Kling GW, Kipphut GW, Miller MC. 1991. Arctic lakes and streams as gas conduits to the atmosphere: implications for tundra carbon budgets. Science 251: 298–301

    PubMed  Article  CAS  Google Scholar 

  19. Kokelj SV, Burn CR. 2005. Near-surface ground ice in sediments of the Mackenzie Delta, Northwest Territories, Canada. Permafr Periglacial Process 16: 291–303

    Article  Google Scholar 

  20. Kritzberg ES, Cole JJ, Pace ML, Granéli W, Bade DL. 2004. Autochthonous versus allochthonous carbon sources of bacteria: Results from whole-lake 13C addition experiments. Limnol Oceanogr 49: 588–96

    CAS  Google Scholar 

  21. Lesack LFW, Hecky RE, Marsh P. 1991. The influence of frequency and duration of flooding on the nutrient chemistry of Mackenzie Delta lakes. In: Marsh P, Ommanney CSL, editors. Mackenzie Delta: environmental interactions and implications of development. National Hydrology Research Institute, Environment Saskatoon, Canada. p19–36

    Google Scholar 

  22. Lesack LFW, Marsh P. 2007. Lengthening plus shortening of river-to-lake connection times in the Mackenzie River Delta respectively via two global change mechanisms. Geophys Res Lett 34:art. no. L23404

  23. Lesack LFW, Marsh P, Hecky RE. 1998. Spatial and temporal dynamics of major solute chemistry among Mackenzie Delta lakes. Limnol Oceanogr 43: 1530–43

    CAS  Google Scholar 

  24. MacIntyre S, Wanninkhof R, Chanton JP. 1995. Trace gas exchange across the air–water interface in freshwater and coastal marine environments. In: Matson PA, Harriss RC, Eds. Methods in ecology. Biogenic trace gasses: measuring emissions from soil and water. Great Britain: Blackwell Sciences Ltd. p 52–97

  25. Mackay JR. 1963. The Mackenzie Delta area, N.W.T.: Department of Mines and Technical Surveys, Ottawa, Canada

    Google Scholar 

  26. Marsh P. 1986. Modelling water levels for a lake in the Mackenzie Delta. Cold regions hydrology symposium. Fairbanks: American Water Resources Association. p 23–9

  27. Marsh P, Hey M. 1988. Mackenzie River water levels and the flooding of Delta lakes. National Hydrology Research Institute, Environment Saskatoon, Canada. 59 p

  28. Marsh P, Hey M. 1989. The flooding hydrology of Mackenzie Delta lakes near Inuvik, NWT, Canada. Arctic 42: 41–49

    Google Scholar 

  29. Marsh P, Lesack LFW. 1996. The hydrologic regime of perched lakes in the Mackenzie Delta: potential responses to climate change. Limnol Oceanogr 41: 849–56

    CAS  Google Scholar 

  30. McClelland JW, Holmes RM, Peterson BJ, Amon R, Brabets T, Cooper L, Gibson J, Gordeev VV, Guay C, Milburn D, Staples R, Raymond PA, Shiklomanov I, Striegl R, Zhulidov A, Gurtovaya T, and Zimov S. Development of a pan-Arctic database for river chemistry. EOS, Trans Amer Geophys Union 89:217–8

  31. Nusch EA. 1980. Comparison of different methods for chlorophyll and phaeopigment determination. Ergebnisse Limnol 14: 14–36

    CAS  Google Scholar 

  32. Pipke KJ. 1996. Under-ice methane accumulation in Mackenzie Delta Lakes and potential flux to the atmosphere at ice-out, MSc thesis, Simon Fraser University, Burnaby (Canada)

  33. Prairie YT. 2008. Carbocentric limnology: looking back, looking forward. Can J Fish Aquat Sci 65: 543–8

    Article  Google Scholar 

  34. Prairie YT, Bird DF, Cole JJ. 2002. The summer metabolic balance in the epilimnion of southeastern Quebec lakes. Limnol Oceanogr 47: 316–21

    CAS  Google Scholar 

  35. Prins HBA, Snel JFH, Zanstra PE, Helder RJ. 1982. The mechanism of bicarbonate assimilation by the polar leaves of Potomogeton and Elodea. CO2 concentrations at the leaf surface. Plant Cell Environ 5: 207–14

    CAS  Google Scholar 

  36. Riedel AJ. 2002. Zooplankton composition and controls of heterotrophic flagellates among lakes of the Mackenzie Delta, MSc thesis, Simon Fraser University, Burnaby (Canada)

  37. Scheffer M. 1998. Ecology of shallow lakes. New York: Chapman & Hall. 357 p

  38. Scheffer M, Hosper SH, Meijer M-J, Moss B, Jeppesen E. 1993. Alternative equilibria in shallow lakes. Trend Ecol Evol 8: 275–9

    Article  Google Scholar 

  39. Schindler DE, Carpenter SR, Cole JJ, Kitchell JF, Pace ML. 1997. Influence of food web structure on carbon exchange between lakes and the atmosphere. Science 277: 248–51

    Article  CAS  Google Scholar 

  40. Sobek S, Tranvik LJ, Cole JJ. 2005. Temperature independence of carbon dioxide supersaturation in global lakes. Global Biogeochem Cycles 19:art. no. GB2003

  41. Squires MM, Lesack LFW. 2002. Water transparency and nutrients as controls on phytoplankton along a flood-frequency gradient among lakes of the Mackenzie Delta, western Canadian Arctic. Can J Fish Aquat Sci 59: 1339–49

    Article  CAS  Google Scholar 

  42. Squires MM, Lesack LFW. 2003. The relation between sediment nutrient content and macrophyte biomass and community structure along a water transparency gradient among lakes of the Mackenzie Delta. Can J Fish Aquat Sci 60: 333–43

    Article  CAS  Google Scholar 

  43. Squires MM, Lesack LFW, Huebert D. 2002. The influence of water transparency on the distribution and abundance of macrophytes among lakes of the Mackenzie Delta, Western Canadian Arctic. Freshw Biol 47: 2123–35

    Article  Google Scholar 

  44. Stumm W, Morgan JJ. 1996. Aquatic chemistry: chemical equilibria and rates in natural waters, 3rd edn. New York: Wiley. 1022 p

  45. Tank SE, Lesack LFW, McQueen DJ. In press. Elevated pH regulates bacterial carbon cycling in lakes with high photosynthetic activity. Ecology

  46. Walter KM, Smith LC, Chapin III FS. 2007. Methane bubbling from northern lakes: present and future contributions to the global methane budget. Philos Trans R Soc A 365: 1657–76

    Article  CAS  Google Scholar 

  47. Walter KM, Zimov SA, Chanton JP, Verbyla D, Chapin III FS. 2006. Methane bubbling from Siberian thaw lakes as a positive feedback to climate warming. Nature 443: 71–5

    PubMed  Article  CAS  Google Scholar 

  48. Wanninkhof R, Knox M. 1996. Chemical enhancement of CO2 exchange in natural waters. Limnol Oceanogr 41: 689–97

    CAS  Google Scholar 

  49. Weiss RF. 1974. Carbon-dioxide in water and seawater: the solubility of a non-ideal gas. Marine Chem 2: 203–15

    Article  CAS  Google Scholar 

  50. Welschmeyer NA. 1994. Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. Limnol Oceanogr 39: 1985–92

    CAS  Google Scholar 

  51. Zimov SA, Schuur EAG, Chapin III FS. 2006. Permafrost and the global carbon budget. Science 312: 1612–3

    PubMed  Article  CAS  Google Scholar 

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Acknowledgements

We gratefully acknowledge community organizations in the Inuvialuit and Gwich’in settlement regions who permitted this work to occur within their traditional territories. A. Chateauvert, E. Hines, L. Honka, L. Greenland, and E. Beasley provided technical assistance and J. Gareis provided helpful advice on sampling and logistics. The Aurora Research Institute and Polar Continental Shelf Project provided generous logistical support. Funds from the Natural Sciences and Engineering Research Council of Canada (NSERC Discovery Grant and Northern Research Supplement) to LFWL, and the Science Horizons Youth Internship Program, Northern Scientific Training Program, and an NSERC Northern Research Internship supported this study. Personal financial support to SET was from an NSERC CGS-D scholarship, a Simon Fraser University CD Nelson Scholarship, and a Garfield Weston Award for Northern Research.

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Correspondence to Suzanne E. Tank.

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ST, LL, and RH designed the study, ST performed research, ST analyzed data, ST, LL, and RH wrote the paper.

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Tank, S.E., Lesack, L.F.W. & Hesslein, R.H. Northern Delta Lakes as Summertime CO2 Absorbers Within the Arctic Landscape. Ecosystems 12, 144–157 (2009). https://doi.org/10.1007/s10021-008-9213-5

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Keywords

  • CO2 flux
  • arctic lakes
  • arctic deltas
  • permafrost melting
  • dissolved organic carbon
  • lake-landscape connectivity
  • shallow productive lakes
  • climate change