Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes
This study quantified new biomass production of algae and bacteria in both benthic and pelagic habitats of clear-water lakes to contrast how carbon from the atmosphere and terrestrial sources regulates whole-lake metabolism. We studied four small unproductive lakes in subarctic northern Sweden durin...
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ftdatacite:10.6084/m9.figshare.c.3301118.v1 2023-05-15T17:44:54+02:00 Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes Ask, Jenny Karlsson, Jan Persson, Lennart Ask, Per Byström, Pär Jansson, Mats 2016 https://dx.doi.org/10.6084/m9.figshare.c.3301118.v1 https://figshare.com/collections/Whole-lake_estimates_of_carbon_flux_through_algae_and_bacteria_in_benthic_and_pelagic_habitats_of_clear-water_lakes/3301118/1 unknown Figshare https://dx.doi.org/10.1890/07-1855.1 https://dx.doi.org/10.6084/m9.figshare.c.3301118 CC-BY http://creativecommons.org/licenses/by/3.0/us CC-BY Environmental Science Ecology FOS Biological sciences Collection article 2016 ftdatacite https://doi.org/10.6084/m9.figshare.c.3301118.v1 https://doi.org/10.1890/07-1855.1 https://doi.org/10.6084/m9.figshare.c.3301118 2021-11-05T12:55:41Z This study quantified new biomass production of algae and bacteria in both benthic and pelagic habitats of clear-water lakes to contrast how carbon from the atmosphere and terrestrial sources regulates whole-lake metabolism. We studied four small unproductive lakes in subarctic northern Sweden during one summer season. The production of new biomass in both benthic and pelagic habitats was calculated as the sum of autotrophic production by algae and heterotrophic production by bacteria using allochthonous organic carbon (OC). Whole-lake production of new biomass was dominated by the benthic habitat (86% ± 4% [mean ± SD]) and by primary production (77% ± 9%). Still, heterotrophic bacteria fueled by allochthonous OC constituted a significant portion of the new biomass production in both benthic (19% ± 11%) and pelagic habitats (51% ± 24%). In addition, overall net production (primary production minus respiration) was close to zero in the benthic habitats but highly negative (−163 ± 81 mg C·m −2 ·d −1 ) in pelagic regions of all lakes. We conclude (1) that allochthonous OC supported a significant part of total production of new biomass in both pelagic and benthic habitats, (2) that benthic habitats dominated the whole-lake production of new biomass, and (3) that respiration and net CO 2 production dominated the carbon flux of the pelagic habitats and biomass production dominated the benthic carbon flux. Taken together, these findings suggest that previous investigations have greatly underestimated the productivity of clear-water lakes when benthic autotrophic production and metabolism of allochthonous OC have not been measured. Article in Journal/Newspaper Northern Sweden Subarctic DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Environmental Science Ecology FOS Biological sciences |
spellingShingle |
Environmental Science Ecology FOS Biological sciences Ask, Jenny Karlsson, Jan Persson, Lennart Ask, Per Byström, Pär Jansson, Mats Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
topic_facet |
Environmental Science Ecology FOS Biological sciences |
description |
This study quantified new biomass production of algae and bacteria in both benthic and pelagic habitats of clear-water lakes to contrast how carbon from the atmosphere and terrestrial sources regulates whole-lake metabolism. We studied four small unproductive lakes in subarctic northern Sweden during one summer season. The production of new biomass in both benthic and pelagic habitats was calculated as the sum of autotrophic production by algae and heterotrophic production by bacteria using allochthonous organic carbon (OC). Whole-lake production of new biomass was dominated by the benthic habitat (86% ± 4% [mean ± SD]) and by primary production (77% ± 9%). Still, heterotrophic bacteria fueled by allochthonous OC constituted a significant portion of the new biomass production in both benthic (19% ± 11%) and pelagic habitats (51% ± 24%). In addition, overall net production (primary production minus respiration) was close to zero in the benthic habitats but highly negative (−163 ± 81 mg C·m −2 ·d −1 ) in pelagic regions of all lakes. We conclude (1) that allochthonous OC supported a significant part of total production of new biomass in both pelagic and benthic habitats, (2) that benthic habitats dominated the whole-lake production of new biomass, and (3) that respiration and net CO 2 production dominated the carbon flux of the pelagic habitats and biomass production dominated the benthic carbon flux. Taken together, these findings suggest that previous investigations have greatly underestimated the productivity of clear-water lakes when benthic autotrophic production and metabolism of allochthonous OC have not been measured. |
format |
Article in Journal/Newspaper |
author |
Ask, Jenny Karlsson, Jan Persson, Lennart Ask, Per Byström, Pär Jansson, Mats |
author_facet |
Ask, Jenny Karlsson, Jan Persson, Lennart Ask, Per Byström, Pär Jansson, Mats |
author_sort |
Ask, Jenny |
title |
Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
title_short |
Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
title_full |
Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
title_fullStr |
Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
title_full_unstemmed |
Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
title_sort |
whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes |
publisher |
Figshare |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3301118.v1 https://figshare.com/collections/Whole-lake_estimates_of_carbon_flux_through_algae_and_bacteria_in_benthic_and_pelagic_habitats_of_clear-water_lakes/3301118/1 |
genre |
Northern Sweden Subarctic |
genre_facet |
Northern Sweden Subarctic |
op_relation |
https://dx.doi.org/10.1890/07-1855.1 https://dx.doi.org/10.6084/m9.figshare.c.3301118 |
op_rights |
CC-BY http://creativecommons.org/licenses/by/3.0/us |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3301118.v1 https://doi.org/10.1890/07-1855.1 https://doi.org/10.6084/m9.figshare.c.3301118 |
_version_ |
1766147193323913216 |