Methane concentration and oxidation in the Lena Delta, September 2013
The Lena River is one of the biggest Russian rivers draining into the Laptev Sea. Due to predicted increasing temperatures, the permafrost areas surrounding the Lena Delta will melt at increasing rates. With this melting, high amounts of methane will reach the waters of the Lena and the adjacent Lap...
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Format: | Dataset |
Language: | English |
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PANGAEA
2016
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.868494 https://doi.org/10.1594/PANGAEA.868494 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.868494 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Coast AWI Arctic Land Expedition Bacteria methane oxidizing Coastal Ecology @ AWI Date/Time of event DEPTH water Elevation of event Event label Laptev Sea Latitude of event Lena2013 Longitude of event Methane Methane oxidation rate standard deviation MULT Multiple investigations Quantitative real-time polymerase chain reaction (q-PCR) Radio 3H-CH4 tracer technique RU-Land_2013_Lena T1-1302 T1-1303 T1-1304 T1-1305 T1-1306 T1-1307 T1-3X-1 T4-1301 T4-1303 T4-1304 T4-1305 T5-1301 T5-1303 T5-1304 T6-1301 T6-1302 T6-1303 T6-1304 T6-1305 Turnover rate |
spellingShingle |
AWI_Coast AWI Arctic Land Expedition Bacteria methane oxidizing Coastal Ecology @ AWI Date/Time of event DEPTH water Elevation of event Event label Laptev Sea Latitude of event Lena2013 Longitude of event Methane Methane oxidation rate standard deviation MULT Multiple investigations Quantitative real-time polymerase chain reaction (q-PCR) Radio 3H-CH4 tracer technique RU-Land_2013_Lena T1-1302 T1-1303 T1-1304 T1-1305 T1-1306 T1-1307 T1-3X-1 T4-1301 T4-1303 T4-1304 T4-1305 T5-1301 T5-1303 T5-1304 T6-1301 T6-1302 T6-1303 T6-1304 T6-1305 Turnover rate Bussmann, Ingeborg Hackbusch, Steffen Schaal, Patrick Wichels, Antje Methane concentration and oxidation in the Lena Delta, September 2013 |
topic_facet |
AWI_Coast AWI Arctic Land Expedition Bacteria methane oxidizing Coastal Ecology @ AWI Date/Time of event DEPTH water Elevation of event Event label Laptev Sea Latitude of event Lena2013 Longitude of event Methane Methane oxidation rate standard deviation MULT Multiple investigations Quantitative real-time polymerase chain reaction (q-PCR) Radio 3H-CH4 tracer technique RU-Land_2013_Lena T1-1302 T1-1303 T1-1304 T1-1305 T1-1306 T1-1307 T1-3X-1 T4-1301 T4-1303 T4-1304 T4-1305 T5-1301 T5-1303 T5-1304 T6-1301 T6-1302 T6-1303 T6-1304 T6-1305 Turnover rate |
description |
The Lena River is one of the biggest Russian rivers draining into the Laptev Sea. Due to predicted increasing temperatures, the permafrost areas surrounding the Lena Delta will melt at increasing rates. With this melting, high amounts of methane will reach the waters of the Lena and the adjacent Laptev Sea. Methane oxidation by methanotrophic bacteria is the only biological way to reduce methane concentrations within the system. However, the polar estuary of the Lena River is a challenging environment for bacteria, with strong fluctuations in salinity and temperature. We determined the activity (tracer method) and the abundance (qPCR) of aerobic methanotrophic bacteria. We described the methanotrophic population with MISA; as well as the methane distribution (head space) and other abiotic parameters in the Lena Delta in September 2013. In 'riverine water' (S <5) we found a median methane concentration of 22 nM, in 'mixed water' (5 < S < 20) the median methane concentration was 19 nM and in 'polar water' (S > 20) a median 28 nM was observed. The Lena River was not the methane source for surface water, and bottom water methane concentrations were mainly influenced by the concentration in surface sediments. However, the methane oxidation rate in riverine and polar water was very similar (0.419 and 0.400 nM/d), but with a higher relative abundance of methanotrophs and a higher 'estimated diversity' with respect to MISA OTUs in the 'rivine water' as compared to 'polar water'. The turnover times of methane ranged from 167 d in 'mixed water', 91 d in 'riverine water' and only 36 d in 'polarwater'. Also the environmental parameters influencing the methane oxidation rate and the methanotrophic population differed between the water masses. Thus we postulate a riverine methanotrophic population limited by sub-optimal temperatures and substrate concentrations and a polar methanotrophic population being well adapted to the cold and methane poor environment, but limited by the nitrogen content. The diffusive ... |
format |
Dataset |
author |
Bussmann, Ingeborg Hackbusch, Steffen Schaal, Patrick Wichels, Antje |
author_facet |
Bussmann, Ingeborg Hackbusch, Steffen Schaal, Patrick Wichels, Antje |
author_sort |
Bussmann, Ingeborg |
title |
Methane concentration and oxidation in the Lena Delta, September 2013 |
title_short |
Methane concentration and oxidation in the Lena Delta, September 2013 |
title_full |
Methane concentration and oxidation in the Lena Delta, September 2013 |
title_fullStr |
Methane concentration and oxidation in the Lena Delta, September 2013 |
title_full_unstemmed |
Methane concentration and oxidation in the Lena Delta, September 2013 |
title_sort |
methane concentration and oxidation in the lena delta, september 2013 |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.868494 https://doi.org/10.1594/PANGAEA.868494 |
op_coverage |
MEDIAN LATITUDE: 73.039070 * MEDIAN LONGITUDE: 129.647259 * SOUTH-BOUND LATITUDE: 71.741470 * WEST-BOUND LONGITUDE: 127.316470 * NORTH-BOUND LATITUDE: 74.060640 * EAST-BOUND LONGITUDE: 132.466220 * DATE/TIME START: 2013-09-01T11:22:00 * DATE/TIME END: 2013-09-06T19:20:00 * MINIMUM DEPTH, water: 1 m * MAXIMUM DEPTH, water: 27 m |
long_lat |
ENVELOPE(127.316470,132.466220,74.060640,71.741470) |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea lena delta lena river permafrost |
genre_facet |
Arctic laptev Laptev Sea lena delta lena river permafrost |
op_source |
Supplement to: Bussmann, Ingeborg; Hackbusch, Steffen; Schaal, Patrick; Wichels, Antje (2017): Methane distribution and oxidation around the Lena Delta in summer 2013. Biogeosciences, 14(21), 4985-5002, https://doi.org/10.5194/bg-14-4985-2017 |
op_relation |
Dubinenkov, Ivan; Kraberg, Alexandra Claudia; Bussmann, Ingeborg; Kattner, Gerhard; Koch, Boris P (2015): Physical oceanography and dissolved organic matter in the coastal Laptev Sea in 2013. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.842221 https://doi.pangaea.de/10.1594/PANGAEA.868494 https://doi.org/10.1594/PANGAEA.868494 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: signup required info:eu-repo/semantics/restrictedAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.868494 https://doi.org/10.5194/bg-14-4985-2017 https://doi.org/10.1594/PANGAEA.842221 |
_version_ |
1766349792332480512 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.868494 2023-05-15T15:19:35+02:00 Methane concentration and oxidation in the Lena Delta, September 2013 Bussmann, Ingeborg Hackbusch, Steffen Schaal, Patrick Wichels, Antje MEDIAN LATITUDE: 73.039070 * MEDIAN LONGITUDE: 129.647259 * SOUTH-BOUND LATITUDE: 71.741470 * WEST-BOUND LONGITUDE: 127.316470 * NORTH-BOUND LATITUDE: 74.060640 * EAST-BOUND LONGITUDE: 132.466220 * DATE/TIME START: 2013-09-01T11:22:00 * DATE/TIME END: 2013-09-06T19:20:00 * MINIMUM DEPTH, water: 1 m * MAXIMUM DEPTH, water: 27 m 2016-11-16 text/tab-separated-values, 180 data points https://doi.pangaea.de/10.1594/PANGAEA.868494 https://doi.org/10.1594/PANGAEA.868494 en eng PANGAEA Dubinenkov, Ivan; Kraberg, Alexandra Claudia; Bussmann, Ingeborg; Kattner, Gerhard; Koch, Boris P (2015): Physical oceanography and dissolved organic matter in the coastal Laptev Sea in 2013. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.842221 https://doi.pangaea.de/10.1594/PANGAEA.868494 https://doi.org/10.1594/PANGAEA.868494 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: signup required info:eu-repo/semantics/restrictedAccess CC-BY Supplement to: Bussmann, Ingeborg; Hackbusch, Steffen; Schaal, Patrick; Wichels, Antje (2017): Methane distribution and oxidation around the Lena Delta in summer 2013. Biogeosciences, 14(21), 4985-5002, https://doi.org/10.5194/bg-14-4985-2017 AWI_Coast AWI Arctic Land Expedition Bacteria methane oxidizing Coastal Ecology @ AWI Date/Time of event DEPTH water Elevation of event Event label Laptev Sea Latitude of event Lena2013 Longitude of event Methane Methane oxidation rate standard deviation MULT Multiple investigations Quantitative real-time polymerase chain reaction (q-PCR) Radio 3H-CH4 tracer technique RU-Land_2013_Lena T1-1302 T1-1303 T1-1304 T1-1305 T1-1306 T1-1307 T1-3X-1 T4-1301 T4-1303 T4-1304 T4-1305 T5-1301 T5-1303 T5-1304 T6-1301 T6-1302 T6-1303 T6-1304 T6-1305 Turnover rate Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.868494 https://doi.org/10.5194/bg-14-4985-2017 https://doi.org/10.1594/PANGAEA.842221 2023-01-20T09:08:10Z The Lena River is one of the biggest Russian rivers draining into the Laptev Sea. Due to predicted increasing temperatures, the permafrost areas surrounding the Lena Delta will melt at increasing rates. With this melting, high amounts of methane will reach the waters of the Lena and the adjacent Laptev Sea. Methane oxidation by methanotrophic bacteria is the only biological way to reduce methane concentrations within the system. However, the polar estuary of the Lena River is a challenging environment for bacteria, with strong fluctuations in salinity and temperature. We determined the activity (tracer method) and the abundance (qPCR) of aerobic methanotrophic bacteria. We described the methanotrophic population with MISA; as well as the methane distribution (head space) and other abiotic parameters in the Lena Delta in September 2013. In 'riverine water' (S <5) we found a median methane concentration of 22 nM, in 'mixed water' (5 < S < 20) the median methane concentration was 19 nM and in 'polar water' (S > 20) a median 28 nM was observed. The Lena River was not the methane source for surface water, and bottom water methane concentrations were mainly influenced by the concentration in surface sediments. However, the methane oxidation rate in riverine and polar water was very similar (0.419 and 0.400 nM/d), but with a higher relative abundance of methanotrophs and a higher 'estimated diversity' with respect to MISA OTUs in the 'rivine water' as compared to 'polar water'. The turnover times of methane ranged from 167 d in 'mixed water', 91 d in 'riverine water' and only 36 d in 'polarwater'. Also the environmental parameters influencing the methane oxidation rate and the methanotrophic population differed between the water masses. Thus we postulate a riverine methanotrophic population limited by sub-optimal temperatures and substrate concentrations and a polar methanotrophic population being well adapted to the cold and methane poor environment, but limited by the nitrogen content. The diffusive ... Dataset Arctic laptev Laptev Sea lena delta lena river permafrost PANGAEA - Data Publisher for Earth & Environmental Science Arctic Laptev Sea ENVELOPE(127.316470,132.466220,74.060640,71.741470) |