Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea
Bacterial carbon demand, an important component of ecosystem dynamics in polar waters and sea ice, is a function of both bacterial production (BP) and respiration (BR). BP has been found to be generally higher in sea ice than underlying waters, but rates of BR and bacterial growth efficiency (BGE) a...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.817937 2024-09-15T17:50:32+00:00 Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea Nguyen, Dan Maranger, Roxane MEDIAN LATITUDE: 71.641830 * MEDIAN LONGITUDE: -124.459374 * SOUTH-BOUND LATITUDE: 69.826700 * WEST-BOUND LONGITUDE: -126.172000 * NORTH-BOUND LATITUDE: 75.128000 * EAST-BOUND LONGITUDE: -120.396600 * DATE/TIME START: 2008-03-01T00:00:00 * DATE/TIME END: 2008-07-07T00:00:00 2011 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.817937 https://doi.org/10.1594/PANGAEA.817937 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.817937 https://doi.org/10.1594/PANGAEA.817937 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Nguyen, Dan; Maranger, Roxane (2011): Respiration and bacterial carbon dynamics in Arctic sea ice. Polar Biology, 34(12), 1843-1855, https://doi.org/10.1007/s00300-011-1040-z International Polar Year (2007-2008) IPY dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81793710.1007/s00300-011-1040-z 2024-07-24T02:31:21Z Bacterial carbon demand, an important component of ecosystem dynamics in polar waters and sea ice, is a function of both bacterial production (BP) and respiration (BR). BP has been found to be generally higher in sea ice than underlying waters, but rates of BR and bacterial growth efficiency (BGE) are poorly characterized in sea ice. Using melted ice core incubations, community respiration (CR), BP, and bacterial abundance (BA) were studied in sea ice and at the ice-water interface (IWI) in the Western Canadian Arctic during the spring and summer 2008. CR was converted to BR empirically. BP increased over the season and was on average 22 times higher in sea ice as compared with the IWI. Rates in ice samples were highly variable ranging from 0.2 to 18.3 µg C/l/d. BR was also higher in ice and on average ~10 times higher than BP but was less variable ranging from 2.39 to 22.5 µg C/l/d. Given the high variability in BP and the relatively more stable rates of BR, BP was the main driver of estimated BGE (r**2 = 0.97, P < 0.0001). We conclude that microbial respiration can consume a significant proportion of primary production in sea ice and may play an important role in biogenic CO2 fluxes between the sea ice and atmosphere. Other/Unknown Material Arctic Beaufort Sea ice core International Polar Year IPY Polar Biology Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-126.172000,-120.396600,75.128000,69.826700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Nguyen, Dan Maranger, Roxane Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
Bacterial carbon demand, an important component of ecosystem dynamics in polar waters and sea ice, is a function of both bacterial production (BP) and respiration (BR). BP has been found to be generally higher in sea ice than underlying waters, but rates of BR and bacterial growth efficiency (BGE) are poorly characterized in sea ice. Using melted ice core incubations, community respiration (CR), BP, and bacterial abundance (BA) were studied in sea ice and at the ice-water interface (IWI) in the Western Canadian Arctic during the spring and summer 2008. CR was converted to BR empirically. BP increased over the season and was on average 22 times higher in sea ice as compared with the IWI. Rates in ice samples were highly variable ranging from 0.2 to 18.3 µg C/l/d. BR was also higher in ice and on average ~10 times higher than BP but was less variable ranging from 2.39 to 22.5 µg C/l/d. Given the high variability in BP and the relatively more stable rates of BR, BP was the main driver of estimated BGE (r**2 = 0.97, P < 0.0001). We conclude that microbial respiration can consume a significant proportion of primary production in sea ice and may play an important role in biogenic CO2 fluxes between the sea ice and atmosphere. |
format |
Other/Unknown Material |
author |
Nguyen, Dan Maranger, Roxane |
author_facet |
Nguyen, Dan Maranger, Roxane |
author_sort |
Nguyen, Dan |
title |
Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
title_short |
Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
title_full |
Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
title_fullStr |
Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
title_full_unstemmed |
Physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern Beaufort Sea |
title_sort |
physical characteristics and bacterial production and respiration at stations sampled during 2008 in the eastern beaufort sea |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.817937 https://doi.org/10.1594/PANGAEA.817937 |
op_coverage |
MEDIAN LATITUDE: 71.641830 * MEDIAN LONGITUDE: -124.459374 * SOUTH-BOUND LATITUDE: 69.826700 * WEST-BOUND LONGITUDE: -126.172000 * NORTH-BOUND LATITUDE: 75.128000 * EAST-BOUND LONGITUDE: -120.396600 * DATE/TIME START: 2008-03-01T00:00:00 * DATE/TIME END: 2008-07-07T00:00:00 |
long_lat |
ENVELOPE(-126.172000,-120.396600,75.128000,69.826700) |
genre |
Arctic Beaufort Sea ice core International Polar Year IPY Polar Biology Sea ice |
genre_facet |
Arctic Beaufort Sea ice core International Polar Year IPY Polar Biology Sea ice |
op_source |
Supplement to: Nguyen, Dan; Maranger, Roxane (2011): Respiration and bacterial carbon dynamics in Arctic sea ice. Polar Biology, 34(12), 1843-1855, https://doi.org/10.1007/s00300-011-1040-z |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.817937 https://doi.org/10.1594/PANGAEA.817937 |
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.81793710.1007/s00300-011-1040-z |
_version_ |
1810292335745957888 |