Estuaries and Coasts

, Volume 35, Issue 2, pp 369–382

Seasonal and Annual Fluxes of Nutrients and Organic Matter from Large Rivers to the Arctic Ocean and Surrounding Seas

Authors

    • The Woods Hole Research Center
  • James W. McClelland
    • The University of Texas at Austin
  • Bruce J. Peterson
    • Marine Biological Laboratory
  • Suzanne E. Tank
    • Marine Biological Laboratory
  • Ekaterina Bulygina
    • The Woods Hole Research Center
  • Timothy I. Eglinton
    • Swiss Federal Institute of Technology
  • Viacheslav V. Gordeev
    • P. P. Shirshov Institute of OceanologyRussian Academy of Sciences
  • Tatiana Y. Gurtovaya
    • South Russia Centre for Preparation and Implementation of International Projects
  • Peter A. Raymond
    • Yale School of Forestry and Environmental StudiesYale University
  • Daniel J. Repeta
    • Woods Hole Oceanographic Institution
  • Robin Staples
    • Department of Indian and Northern Affairs
  • Robert G. Striegl
    • USGS
  • Alexander V. Zhulidov
    • South Russia Centre for Preparation and Implementation of International Projects
  • Sergey A. Zimov
    • Northeast Science Station
Article

DOI: 10.1007/s12237-011-9386-6

Cite this article as:
Holmes, R.M., McClelland, J.W., Peterson, B.J. et al. Estuaries and Coasts (2012) 35: 369. doi:10.1007/s12237-011-9386-6

Abstract

River inputs of nutrients and organic matter impact the biogeochemistry of arctic estuaries and the Arctic Ocean as a whole, yet there is considerable uncertainty about the magnitude of fluvial fluxes at the pan-Arctic scale. Samples from the six largest arctic rivers, with a combined watershed area of 11.3 × 106 km2, have revealed strong seasonal variations in constituent concentrations and fluxes within rivers as well as large differences among the rivers. Specifically, we investigate fluxes of dissolved organic carbon, dissolved organic nitrogen, total dissolved phosphorus, dissolved inorganic nitrogen, nitrate, and silica. This is the first time that seasonal and annual constituent fluxes have been determined using consistent sampling and analytical methods at the pan-Arctic scale and consequently provide the best available estimates for constituent flux from land to the Arctic Ocean and surrounding seas. Given the large inputs of river water to the relatively small Arctic Ocean and the dramatic impacts that climate change is having in the Arctic, it is particularly urgent that we establish the contemporary river fluxes so that we will be able to detect future changes and evaluate the impact of the changes on the biogeochemistry of the receiving coastal and ocean systems.

Keywords

ArcticRiversArctic riversSiberiaLand–ocean linkageClimate changePermafrostDissolved organic carbonDOC

Copyright information

© Coastal and Estuarine Research Federation 2011