Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden
We compared the stable carbon isotopic composition (δ 13 C) of crustacean zooplankton with that of potential carbon sources in 15 lakes in northern Sweden with different dissolved organic carbon (DOC) concentrations (2‐9 mg L −1 ) to test the hypothesis that zooplankton depended more on allochthonou...
Published in: | Limnology and Oceanography |
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crwiley:10.4319/lo.2003.48.1.0269 2024-09-15T18:26:03+00:00 Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden Karlsson, Jan Jonsson, Anders Meili, Markus Jansson, Mats 2003 http://dx.doi.org/10.4319/lo.2003.48.1.0269 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2003.48.1.0269 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2003.48.1.0269 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 48, issue 1, page 269-276 ISSN 0024-3590 1939-5590 journal-article 2003 crwiley https://doi.org/10.4319/lo.2003.48.1.0269 2024-08-27T04:30:37Z We compared the stable carbon isotopic composition (δ 13 C) of crustacean zooplankton with that of potential carbon sources in 15 lakes in northern Sweden with different dissolved organic carbon (DOC) concentrations (2‐9 mg L −1 ) to test the hypothesis that zooplankton depended more on allochthonous carbon in humic lakes than in clear‐water lakes. Based on δ 13 C signature, we found that the pool of organic matter in the lakes was dominated by carbon of allochthonous origin over the whole DOC gradient. Zooplankton were generally depleted in 13C compared to organic matter in the catchment, particulate organic matter in the lake water, and shallow surface sediment. However, the isotopic composition of zooplankton could not be explained without a significant contribution from both allochthonous and autochthonous carbon sources in all lakes. The relative importance of these two carbon sources did not relate to the concentration of, or proportion between, allochthonous and autochthonous organic carbon in the water. Instead, the proportion between allochthonous and autochthonous carbon in the crustacean zooplankton was consistent with a rather conservative use of the energy mobilized by bacterioplankton and phytoplankton in the lakes. Article in Journal/Newspaper Northern Sweden Wiley Online Library Limnology and Oceanography 48 1 269 276 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
We compared the stable carbon isotopic composition (δ 13 C) of crustacean zooplankton with that of potential carbon sources in 15 lakes in northern Sweden with different dissolved organic carbon (DOC) concentrations (2‐9 mg L −1 ) to test the hypothesis that zooplankton depended more on allochthonous carbon in humic lakes than in clear‐water lakes. Based on δ 13 C signature, we found that the pool of organic matter in the lakes was dominated by carbon of allochthonous origin over the whole DOC gradient. Zooplankton were generally depleted in 13C compared to organic matter in the catchment, particulate organic matter in the lake water, and shallow surface sediment. However, the isotopic composition of zooplankton could not be explained without a significant contribution from both allochthonous and autochthonous carbon sources in all lakes. The relative importance of these two carbon sources did not relate to the concentration of, or proportion between, allochthonous and autochthonous organic carbon in the water. Instead, the proportion between allochthonous and autochthonous carbon in the crustacean zooplankton was consistent with a rather conservative use of the energy mobilized by bacterioplankton and phytoplankton in the lakes. |
format |
Article in Journal/Newspaper |
author |
Karlsson, Jan Jonsson, Anders Meili, Markus Jansson, Mats |
spellingShingle |
Karlsson, Jan Jonsson, Anders Meili, Markus Jansson, Mats Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
author_facet |
Karlsson, Jan Jonsson, Anders Meili, Markus Jansson, Mats |
author_sort |
Karlsson, Jan |
title |
Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
title_short |
Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
title_full |
Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
title_fullStr |
Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
title_full_unstemmed |
Control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern Sweden |
title_sort |
control of zooplankton dependence on allochthonous organic carbon in humic and clear‐water lakes in northern sweden |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.4319/lo.2003.48.1.0269 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2003.48.1.0269 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2003.48.1.0269 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Limnology and Oceanography volume 48, issue 1, page 269-276 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2003.48.1.0269 |
container_title |
Limnology and Oceanography |
container_volume |
48 |
container_issue |
1 |
container_start_page |
269 |
op_container_end_page |
276 |
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1810466512294641664 |