Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula

Maria Herrmann, Raymond G. Najjar, Aimee R. Neeley, Maria Vila-Costa, John W.H. Dacey, Giacomo R. DiTullio, David J. Kieber, Ronald P. Kiene, Patricia A. Matrai, Rafel Simó, Maria Vernet

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The rate of gross biological dimethylsulfide (DMS) production at two coastal sites west of the Antarctic Peninsula, off Anvers Island, near Palmer Station, was estimated using a diagnostic approach that combined field measurements from 1 January 2006 through 1 March 2006 and a one-dimensional physical model of ocean mixing. The average DMS production rate in the upper water column (0-60m) was estimated to be 3.1±0.6nMd -1 at station B (closer to shore) and 2.7±0.6nMd -1 at station E (further from shore). The estimated DMS replacement time was on the order of 1d at both stations. DMS production was greater in the mixed layer than it was below the mixed layer. The average DMS production normalized to chlorophyll was 0.5±0.1(nMd -1)/(mgm -3) at station B and 0.7±0.2(nMd -1)/(mgm -3) at station E. When the diagnosed production rates were normalized to the observed concentrations of total dimethylsulfoniopropionate (DMSPt, the biogenic precursor of DMS), we found a remarkable similarity between our estimates at stations B and E (0.06±0.02 and 0.04±0.01(nMDMSd -1)/(nMDMSP), respectively) and the results obtained in a previous study from a contrasting biogeochemical environment in the North Atlantic subtropical gyre (0.047±0.006 and 0.087±0.014(nMDMSd -1)/(nMDMSP) in a cyclonic and anticyclonic eddy, respectively). We propose that gross biological DMS production normalized to DMSPt might be relatively independent of the biogeochemical environment, and place our average estimate at 0.06±0.01(nMDMSd -1)/(nMDMSPt). The significance of this finding is that it can provide a means to use DMSPt measurements to extrapolate gross biological DMS production, which is extremely difficult to measure experimentally under realistic in situ conditions.

Original languageEnglish (US)
Pages (from-to)96-109
Number of pages14
JournalContinental Shelf Research
Volume32
DOIs
StatePublished - Jan 1 2012

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biological production
dimethylsulfide
coastal water
modeling
physical models
oceans
mixed layer
chlorophyll
dimethylsulfoniopropionate
gyre
station
water
eddy
replacement
water column
ocean

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Aquatic Science
  • Geology

Cite this

Herrmann, Maria ; Najjar, Raymond G. ; Neeley, Aimee R. ; Vila-Costa, Maria ; Dacey, John W.H. ; DiTullio, Giacomo R. ; Kieber, David J. ; Kiene, Ronald P. ; Matrai, Patricia A. ; Simó, Rafel ; Vernet, Maria. / Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula. In: Continental Shelf Research. 2012 ; Vol. 32. pp. 96-109.
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title = "Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula",
abstract = "The rate of gross biological dimethylsulfide (DMS) production at two coastal sites west of the Antarctic Peninsula, off Anvers Island, near Palmer Station, was estimated using a diagnostic approach that combined field measurements from 1 January 2006 through 1 March 2006 and a one-dimensional physical model of ocean mixing. The average DMS production rate in the upper water column (0-60m) was estimated to be 3.1±0.6nMd -1 at station B (closer to shore) and 2.7±0.6nMd -1 at station E (further from shore). The estimated DMS replacement time was on the order of 1d at both stations. DMS production was greater in the mixed layer than it was below the mixed layer. The average DMS production normalized to chlorophyll was 0.5±0.1(nMd -1)/(mgm -3) at station B and 0.7±0.2(nMd -1)/(mgm -3) at station E. When the diagnosed production rates were normalized to the observed concentrations of total dimethylsulfoniopropionate (DMSPt, the biogenic precursor of DMS), we found a remarkable similarity between our estimates at stations B and E (0.06±0.02 and 0.04±0.01(nMDMSd -1)/(nMDMSP), respectively) and the results obtained in a previous study from a contrasting biogeochemical environment in the North Atlantic subtropical gyre (0.047±0.006 and 0.087±0.014(nMDMSd -1)/(nMDMSP) in a cyclonic and anticyclonic eddy, respectively). We propose that gross biological DMS production normalized to DMSPt might be relatively independent of the biogeochemical environment, and place our average estimate at 0.06±0.01(nMDMSd -1)/(nMDMSPt). The significance of this finding is that it can provide a means to use DMSPt measurements to extrapolate gross biological DMS production, which is extremely difficult to measure experimentally under realistic in situ conditions.",
author = "Maria Herrmann and Najjar, {Raymond G.} and Neeley, {Aimee R.} and Maria Vila-Costa and Dacey, {John W.H.} and DiTullio, {Giacomo R.} and Kieber, {David J.} and Kiene, {Ronald P.} and Matrai, {Patricia A.} and Rafel Sim{\'o} and Maria Vernet",
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Herrmann, M, Najjar, RG, Neeley, AR, Vila-Costa, M, Dacey, JWH, DiTullio, GR, Kieber, DJ, Kiene, RP, Matrai, PA, Simó, R & Vernet, M 2012, 'Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula', Continental Shelf Research, vol. 32, pp. 96-109. https://doi.org/10.1016/j.csr.2011.10.017

Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula. / Herrmann, Maria; Najjar, Raymond G.; Neeley, Aimee R.; Vila-Costa, Maria; Dacey, John W.H.; DiTullio, Giacomo R.; Kieber, David J.; Kiene, Ronald P.; Matrai, Patricia A.; Simó, Rafel; Vernet, Maria.

In: Continental Shelf Research, Vol. 32, 01.01.2012, p. 96-109.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula

AU - Herrmann, Maria

AU - Najjar, Raymond G.

AU - Neeley, Aimee R.

AU - Vila-Costa, Maria

AU - Dacey, John W.H.

AU - DiTullio, Giacomo R.

AU - Kieber, David J.

AU - Kiene, Ronald P.

AU - Matrai, Patricia A.

AU - Simó, Rafel

AU - Vernet, Maria

PY - 2012/1/1

Y1 - 2012/1/1

N2 - The rate of gross biological dimethylsulfide (DMS) production at two coastal sites west of the Antarctic Peninsula, off Anvers Island, near Palmer Station, was estimated using a diagnostic approach that combined field measurements from 1 January 2006 through 1 March 2006 and a one-dimensional physical model of ocean mixing. The average DMS production rate in the upper water column (0-60m) was estimated to be 3.1±0.6nMd -1 at station B (closer to shore) and 2.7±0.6nMd -1 at station E (further from shore). The estimated DMS replacement time was on the order of 1d at both stations. DMS production was greater in the mixed layer than it was below the mixed layer. The average DMS production normalized to chlorophyll was 0.5±0.1(nMd -1)/(mgm -3) at station B and 0.7±0.2(nMd -1)/(mgm -3) at station E. When the diagnosed production rates were normalized to the observed concentrations of total dimethylsulfoniopropionate (DMSPt, the biogenic precursor of DMS), we found a remarkable similarity between our estimates at stations B and E (0.06±0.02 and 0.04±0.01(nMDMSd -1)/(nMDMSP), respectively) and the results obtained in a previous study from a contrasting biogeochemical environment in the North Atlantic subtropical gyre (0.047±0.006 and 0.087±0.014(nMDMSd -1)/(nMDMSP) in a cyclonic and anticyclonic eddy, respectively). We propose that gross biological DMS production normalized to DMSPt might be relatively independent of the biogeochemical environment, and place our average estimate at 0.06±0.01(nMDMSd -1)/(nMDMSPt). The significance of this finding is that it can provide a means to use DMSPt measurements to extrapolate gross biological DMS production, which is extremely difficult to measure experimentally under realistic in situ conditions.

AB - The rate of gross biological dimethylsulfide (DMS) production at two coastal sites west of the Antarctic Peninsula, off Anvers Island, near Palmer Station, was estimated using a diagnostic approach that combined field measurements from 1 January 2006 through 1 March 2006 and a one-dimensional physical model of ocean mixing. The average DMS production rate in the upper water column (0-60m) was estimated to be 3.1±0.6nMd -1 at station B (closer to shore) and 2.7±0.6nMd -1 at station E (further from shore). The estimated DMS replacement time was on the order of 1d at both stations. DMS production was greater in the mixed layer than it was below the mixed layer. The average DMS production normalized to chlorophyll was 0.5±0.1(nMd -1)/(mgm -3) at station B and 0.7±0.2(nMd -1)/(mgm -3) at station E. When the diagnosed production rates were normalized to the observed concentrations of total dimethylsulfoniopropionate (DMSPt, the biogenic precursor of DMS), we found a remarkable similarity between our estimates at stations B and E (0.06±0.02 and 0.04±0.01(nMDMSd -1)/(nMDMSP), respectively) and the results obtained in a previous study from a contrasting biogeochemical environment in the North Atlantic subtropical gyre (0.047±0.006 and 0.087±0.014(nMDMSd -1)/(nMDMSP) in a cyclonic and anticyclonic eddy, respectively). We propose that gross biological DMS production normalized to DMSPt might be relatively independent of the biogeochemical environment, and place our average estimate at 0.06±0.01(nMDMSd -1)/(nMDMSPt). The significance of this finding is that it can provide a means to use DMSPt measurements to extrapolate gross biological DMS production, which is extremely difficult to measure experimentally under realistic in situ conditions.

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JO - Continental Shelf Research

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