Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland
1. Shallow arctic lakes and ponds have simple and short food webs, but large uncertainties remain about benthic-pelagic links in these systems. We tested whether organic matter of benthic origin supports zooplankton biomass in a pond in NE Greenland, using stable isotope analysis of carbon and nitro...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.808244 2024-09-15T17:50:48+00:00 Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland Cazzanelli, Matteo Forsström, Laura Rautio, Milla Michelsen, Anders Christoffersen, Kirsten Seestern LATITUDE: 74.500000 * LONGITUDE: -21.000000 * DATE/TIME START: 2009-08-15T00:00:00 * DATE/TIME END: 2009-08-15T00:00:00 2012 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.808244 https://doi.org/10.1594/PANGAEA.808244 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.808244 https://doi.org/10.1594/PANGAEA.808244 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Cazzanelli, Matteo; Forsström, Laura; Rautio, Milla; Michelsen, Anders; Christoffersen, Kirsten Seestern (2012): Benthic resources are the key to Daphnia middendorffiana survival in a high arctic pond. Freshwater Biology, 57(3), 541-551, https://doi.org/10.1111/j.1365-2427.2011.02722.x International Polar Year (2007-2008) IPY Pond_19 Water sample WS Zackenberg Northeast Greenland dataset publication series 2012 ftpangaea https://doi.org/10.1594/PANGAEA.80824410.1111/j.1365-2427.2011.02722.x 2024-07-24T02:31:21Z 1. Shallow arctic lakes and ponds have simple and short food webs, but large uncertainties remain about benthic-pelagic links in these systems. We tested whether organic matter of benthic origin supports zooplankton biomass in a pond in NE Greenland, using stable isotope analysis of carbon and nitrogen in the pond itself and in a 13C-enrichment enclosure experiment. In the latter, we manipulated the carbon isotope signature of benthic algae to enhance its isotopic discrimination from other potential food sources for zooplankton. 2. The cladoceran Daphnia middendorffiana responded to the 13C-enrichment of benthic mats with progressively increasing d13C values, suggesting benthic feeding. Stable isotope analysis also pointed towards a negligible contribution of terrestrial carbon to the diet of D. middendorffiana. This agreed with the apparent dominance of autochthonous dissolved organic matter in the pond revealed by analysis of coloured dissolved organic matter. 3. Daily net production by phytoplankton in the pond (18 mg C/m**2/day) could satisfy only up to half of the calculated minimum energy requirements of D. middendorffiana (35 mg C/m**2/day), whereas benthic primary production alone (145 mg C/m**2/day) was more than sufficient. 4. Our findings highlight benthic primary production as a major dietary source for D. middendorffiana in this system and suggest that benthic organic matter may play a key role in sustaining pelagic secondary production in such nutrient-limited high arctic ponds. Other/Unknown Material Arctic Greenland International Polar Year IPY Phytoplankton Zackenberg Zooplankton PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-21.000000,-21.000000,74.500000,74.500000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY Pond_19 Water sample WS Zackenberg Northeast Greenland |
spellingShingle |
International Polar Year (2007-2008) IPY Pond_19 Water sample WS Zackenberg Northeast Greenland Cazzanelli, Matteo Forsström, Laura Rautio, Milla Michelsen, Anders Christoffersen, Kirsten Seestern Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
topic_facet |
International Polar Year (2007-2008) IPY Pond_19 Water sample WS Zackenberg Northeast Greenland |
description |
1. Shallow arctic lakes and ponds have simple and short food webs, but large uncertainties remain about benthic-pelagic links in these systems. We tested whether organic matter of benthic origin supports zooplankton biomass in a pond in NE Greenland, using stable isotope analysis of carbon and nitrogen in the pond itself and in a 13C-enrichment enclosure experiment. In the latter, we manipulated the carbon isotope signature of benthic algae to enhance its isotopic discrimination from other potential food sources for zooplankton. 2. The cladoceran Daphnia middendorffiana responded to the 13C-enrichment of benthic mats with progressively increasing d13C values, suggesting benthic feeding. Stable isotope analysis also pointed towards a negligible contribution of terrestrial carbon to the diet of D. middendorffiana. This agreed with the apparent dominance of autochthonous dissolved organic matter in the pond revealed by analysis of coloured dissolved organic matter. 3. Daily net production by phytoplankton in the pond (18 mg C/m**2/day) could satisfy only up to half of the calculated minimum energy requirements of D. middendorffiana (35 mg C/m**2/day), whereas benthic primary production alone (145 mg C/m**2/day) was more than sufficient. 4. Our findings highlight benthic primary production as a major dietary source for D. middendorffiana in this system and suggest that benthic organic matter may play a key role in sustaining pelagic secondary production in such nutrient-limited high arctic ponds. |
format |
Other/Unknown Material |
author |
Cazzanelli, Matteo Forsström, Laura Rautio, Milla Michelsen, Anders Christoffersen, Kirsten Seestern |
author_facet |
Cazzanelli, Matteo Forsström, Laura Rautio, Milla Michelsen, Anders Christoffersen, Kirsten Seestern |
author_sort |
Cazzanelli, Matteo |
title |
Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
title_short |
Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
title_full |
Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
title_fullStr |
Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
title_full_unstemmed |
Absorption characteristics, major elements and chl a content of samples from Pond 19 at Zackenberg, NE Greenland |
title_sort |
absorption characteristics, major elements and chl a content of samples from pond 19 at zackenberg, ne greenland |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.808244 https://doi.org/10.1594/PANGAEA.808244 |
op_coverage |
LATITUDE: 74.500000 * LONGITUDE: -21.000000 * DATE/TIME START: 2009-08-15T00:00:00 * DATE/TIME END: 2009-08-15T00:00:00 |
long_lat |
ENVELOPE(-21.000000,-21.000000,74.500000,74.500000) |
genre |
Arctic Greenland International Polar Year IPY Phytoplankton Zackenberg Zooplankton |
genre_facet |
Arctic Greenland International Polar Year IPY Phytoplankton Zackenberg Zooplankton |
op_source |
Supplement to: Cazzanelli, Matteo; Forsström, Laura; Rautio, Milla; Michelsen, Anders; Christoffersen, Kirsten Seestern (2012): Benthic resources are the key to Daphnia middendorffiana survival in a high arctic pond. Freshwater Biology, 57(3), 541-551, https://doi.org/10.1111/j.1365-2427.2011.02722.x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.808244 https://doi.org/10.1594/PANGAEA.808244 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80824410.1111/j.1365-2427.2011.02722.x |
_version_ |
1810292608365232128 |