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Article
Patterns in the percent sediment organic matter of arctic lakes.
Faculty Publications
  • Kenneth Fortino
  • Stephen C. Whalen
  • Joseph M. Smoak
SelectedWorks Author Profiles:

Joseph M. Smoak

Document Type
Article
Publication Date
2016
Date Issued
January 2016
Date Available
November 2016
Abstract
Patterns of sediment organic matter deposition in lakes reflect the factors that affect the production of organic matter in the lake and watershed and the removal of organic matter from the sediments. We surveyed the percent sediment organic matter of 22 lakes in the Alaskan Arctic and the rate of organic matter loss with sediment age in 3 lakes in the same region. The variation in sediment organic matter among lakes was greater than the variation between shallow and deep locations within the same lake, which is consistent with landscape-scale control of variation in sediment organic matter. In shallow water sediments, percent sediment organic matter was positively correlated with the amount of light reaching the sediments and the concentration of dissolved oxygen in the overlying water, suggesting that differences in organic matter content reflect differences in benthic production. The percent organic matter of the sediments in deep water was correlated with the percent organic matter in the sediments from shallow water but not environmental variables. The results suggest that variation in sediment organic matter in this region may be influenced by variation in benthic organic matter production more than by the loss of organic matter via mineralization.
Comments
Abstract only. Full-text article is available through licensed access provided by the publisher. Published in Hydrobiologia, 777(1), 149-160. doi: 10.1007/s10750-016-2771-1. Members of the USF System may access the full-text of the article through the authenticated link provided.
Language
en_US
Publisher
Springer
Creative Commons License
Creative Commons Attribution-Noncommercial-No Derivative Works 4.0
Citation Information
Fortino, K., Whalen, S.C., & Smoak, J.M. (2016). Patterns in the percent sediment organic matter of arctic lakes. Hydrobiologia, 777(1), 149-160. doi: 10.1007/s10750-016-2771-1.