Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica
Concentrations of dimethylsulphoniopropionate (DMSP) were measured in seven pack ice cores from three sites in eastern Antarctica to determine their relation to algal pigments, nutrients (nitrate, silicate and phosphate) and bulk salinity. The algal groups haptophytes, dinoflagellates and diatoms we...
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ftjamescook:oai:researchonline.jcu.edu.au:12931 2024-02-11T09:58:46+01:00 Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica Trevena, A.J. Jones, G.B. Wright, S.W. van den Enden, R.L. 2000 application/pdf https://researchonline.jcu.edu.au/12931/1/12931_Trevena_et_al_2000.pdf unknown Elsevier http://dx.doi.org/10.1016/S1385-1101(00)00012-5 https://researchonline.jcu.edu.au/12931/ https://researchonline.jcu.edu.au/12931/1/12931_Trevena_et_al_2000.pdf Trevena, A.J., Jones, G.B., Wright, S.W., and van den Enden, R.L. (2000) Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica. Journal of Sea Research, 43 (3-4). pp. 265-273. restricted Article PeerReviewed 2000 ftjamescook https://doi.org/10.1016/S1385-1101(00)00012-5 2024-01-15T23:26:46Z Concentrations of dimethylsulphoniopropionate (DMSP) were measured in seven pack ice cores from three sites in eastern Antarctica to determine their relation to algal pigments, nutrients (nitrate, silicate and phosphate) and bulk salinity. The algal groups haptophytes, dinoflagellates and diatoms were identified in surface, interior and bottom assemblages in the pack ice cores using the photosynthetic marker pigments 19'-hexanoyloxyfucoxanthin (HEX), peridinin (PER) and fucoxanthin (FUC), respectively. DMSP concentrations were significantly correlated (P<0.01, Pearson) with chlorophyll-a (r=0.58), HEX (r=0.75), PER (r=0.79) and FUC (r=0.63) concentrations. The pool of DMSP within the pack ice (mean 107 nM) was contributed mainly by interior and bottom algal assemblages (mean 94 and 268 nM, respectively), whilst the surface algal assemblages were minor contributors (mean 18 nM). DMSP production and/or accumulation appears to differ between surface, interior and bottom pack ice algal assemblages due to differences in biomass, class composition, and possibly the unique environmental conditions experienced by each assemblage. In pack ice, diatoms appear to be important producers of DMSP, due to their dominance of algal assemblages. Article in Journal/Newspaper Antarc* Antarctica Antarctica Journal James Cook University, Australia: ResearchOnline@JCU Journal of Sea Research 43 3-4 265 273 |
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James Cook University, Australia: ResearchOnline@JCU |
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ftjamescook |
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unknown |
description |
Concentrations of dimethylsulphoniopropionate (DMSP) were measured in seven pack ice cores from three sites in eastern Antarctica to determine their relation to algal pigments, nutrients (nitrate, silicate and phosphate) and bulk salinity. The algal groups haptophytes, dinoflagellates and diatoms were identified in surface, interior and bottom assemblages in the pack ice cores using the photosynthetic marker pigments 19'-hexanoyloxyfucoxanthin (HEX), peridinin (PER) and fucoxanthin (FUC), respectively. DMSP concentrations were significantly correlated (P<0.01, Pearson) with chlorophyll-a (r=0.58), HEX (r=0.75), PER (r=0.79) and FUC (r=0.63) concentrations. The pool of DMSP within the pack ice (mean 107 nM) was contributed mainly by interior and bottom algal assemblages (mean 94 and 268 nM, respectively), whilst the surface algal assemblages were minor contributors (mean 18 nM). DMSP production and/or accumulation appears to differ between surface, interior and bottom pack ice algal assemblages due to differences in biomass, class composition, and possibly the unique environmental conditions experienced by each assemblage. In pack ice, diatoms appear to be important producers of DMSP, due to their dominance of algal assemblages. |
format |
Article in Journal/Newspaper |
author |
Trevena, A.J. Jones, G.B. Wright, S.W. van den Enden, R.L. |
spellingShingle |
Trevena, A.J. Jones, G.B. Wright, S.W. van den Enden, R.L. Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
author_facet |
Trevena, A.J. Jones, G.B. Wright, S.W. van den Enden, R.L. |
author_sort |
Trevena, A.J. |
title |
Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
title_short |
Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
title_full |
Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
title_fullStr |
Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
title_full_unstemmed |
Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica |
title_sort |
profiles of dmsp, algal pigments, nutrients and salinity in pack ice from eastern antarctica |
publisher |
Elsevier |
publishDate |
2000 |
url |
https://researchonline.jcu.edu.au/12931/1/12931_Trevena_et_al_2000.pdf |
genre |
Antarc* Antarctica Antarctica Journal |
genre_facet |
Antarc* Antarctica Antarctica Journal |
op_relation |
http://dx.doi.org/10.1016/S1385-1101(00)00012-5 https://researchonline.jcu.edu.au/12931/ https://researchonline.jcu.edu.au/12931/1/12931_Trevena_et_al_2000.pdf Trevena, A.J., Jones, G.B., Wright, S.W., and van den Enden, R.L. (2000) Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica. Journal of Sea Research, 43 (3-4). pp. 265-273. |
op_rights |
restricted |
op_doi |
https://doi.org/10.1016/S1385-1101(00)00012-5 |
container_title |
Journal of Sea Research |
container_volume |
43 |
container_issue |
3-4 |
container_start_page |
265 |
op_container_end_page |
273 |
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1790594518306783232 |