Terrestrial organic matter input suppresses biomass production in lake ecosystems. Karlsson, J., Bergström, A., Byström, P., Gudasz, C., Rodríguez, P., & Hein, C. Ecology, 96(11):2870–2876, November, 2015. 00015![Terrestrial organic matter input suppresses biomass production in lake ecosystems [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Terrestrial ecosystems export large amounts of organic carbon (t-OC) but the net effect of this OC on the productivity of recipient aquatic ecosystems is largely unknown. In this study of boreal lakes, we show that the relative contribution of t-OC to individual top consumer (fish) biomass production, and to most of their potential prey organisms, increased with the concentration of dissolved organic carbon (DOC; dominated by t-OC sources) in water. However, the biomass and production of top consumers decreased with increasing concentration of DOC, despite their substantial use (up to 60%) of t-OC. Thus, the results suggest that although t-OC supports individual consumer growth in lakes to a large extent, t-OC input suppresses rather than subsidizes population biomass production.
@article{karlsson_terrestrial_2015,
title = {Terrestrial organic matter input suppresses biomass production in lake ecosystems},
volume = {96},
issn = {1939-9170},
url = {http://onlinelibrary.wiley.com/doi/10.1890/15-0515.1/abstract},
doi = {10.1890/15-0515.1},
abstract = {Terrestrial ecosystems export large amounts of organic carbon (t-OC) but the net effect of this OC on the productivity of recipient aquatic ecosystems is largely unknown. In this study of boreal lakes, we show that the relative contribution of t-OC to individual top consumer (fish) biomass production, and to most of their potential prey organisms, increased with the concentration of dissolved organic carbon (DOC; dominated by t-OC sources) in water. However, the biomass and production of top consumers decreased with increasing concentration of DOC, despite their substantial use (up to 60\%) of t-OC. Thus, the results suggest that although t-OC supports individual consumer growth in lakes to a large extent, t-OC input suppresses rather than subsidizes population biomass production.},
language = {en},
number = {11},
urldate = {2017-02-06},
journal = {Ecology},
author = {Karlsson, Jan and Bergström, Ann-Kristin and Byström, Pär and Gudasz, Cristian and Rodríguez, Patricia and Hein, Catherine},
month = nov,
year = {2015},
note = {00015},
keywords = {\#nosource, Umeå, Sweden, allochthonous organic matter, boreal lakes, lake ecosystem, productivity, subsidy, terrestrial organic carbon, t-OC},
pages = {2870--2876},
}
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