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Terrestrial organic matter input suppresses biomass production in lake ecosystems
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. (Climate Impacts Research Centre (CIRC))
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
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2015 (English)In: Ecology, ISSN 0012-9658, E-ISSN 1939-9170, Vol. 96, no 11, 2870-2876 p.Article in journal (Refereed) PublishedText
Abstract [en]

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.

Place, publisher, year, edition, pages
Ecological Society of America , 2015. Vol. 96, no 11, 2870-2876 p.
Keyword [en]
allochthonous organic matter, boreal lakes, lake ecosystem, productivity, subsidy, terrestrial organic rbon, t-OC, Umea, Sweden, LGIORGIO PA, 1994, LIMNOLOGY AND OCEANOGRAPHY, V39, P772 nentzap Andrew J., 2014, NATURE COMMUNICATIONS, V5, rphy J, 1962, Anal Chim Acta, V27, P31 lis GA, 1997, ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, V28, P289 rlsson Jan, 2012, LIMNOLOGY AND OCEANOGRAPHY, V57, P1042 dasz Cristian, 2012, LIMNOLOGY AND OCEANOGRAPHY, V57, P163 pelberg M, 1995, WATER AIR AND SOIL POLLUTION5th International Conference on Acidic Deposition - ience and Policy: Acid Reign 95, JUN 26-30, 1995, GOTHENBURG, SWEDEN, V85, P401 ehl S, 2005, ECOLOGY, V86, P2931 nes Stuart E., 2012, Freshwater Reviews, V5, P37 gesten G, 2004, GLOBAL CHANGE BIOLOGY, V10, P141 rsson L., 1988, P203 rsson L, 1996, ECOLOGY, V77, P900 rane Jan-Erik, 2014, ECOSYSTEMS, V17, P1040 rlsson J, 2004, FRESHWATER BIOLOGY, V49, P526 rlsson J, 2005, LIMNOLOGY AND OCEANOGRAPHY, V50, P538 rlsson Jan, 2007, OIKOS, V116, P1691 asko Ashley D., 2012, ENVIRONMENTAL REVIEWS, V20, P173 nstad Anders G., 2014, ECOLOGY LETTERS, V17, P36 rpenter SR, 1998, LIMNOLOGY AND OCEANOGRAPHY, V43, P73 helker J., 2012, Journal of Geophysical Research (Biogeosciences), V117, P1011 lomon Christopher T., 2011, ECOLOGY, V92, P1115 rggren Martin, 2014, ECOLOGY, V95, P1947
National Category
Environmental Sciences Oceanography, Hydrology, Water Resources Ecology
Identifiers
URN: urn:nbn:se:umu:diva-113747DOI: 10.1890/15-0515.1ISI: 000365521600003OAI: oai:DiVA.org:umu-113747DiVA: diva2:889879
Available from: 2015-12-29 Created: 2015-12-28 Last updated: 2016-06-21Bibliographically approved

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Karlsson, JanBergström, Ann-KristinByström, PärGudasz, CristianHein, Catherine
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