Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring
The development of phytoplankton biomass and composition was investigated on three occasions along a longitudinal transect (6°W) between 60°S and 47°S from October 13 to November 21, 1992 by measurement of photosynthetic pigments with high performance liquid chromatography (HPLC). Measured accessory...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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ftoceanrep:oai:oceanrep.geomar.de:1242 2023-05-15T14:13:50+02:00 Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring Peeken, Ilka 1997 text https://oceanrep.geomar.de/id/eprint/1242/ https://oceanrep.geomar.de/id/eprint/1242/1/1-s2.0-S096706459600077X-main.pdf https://doi.org/10.1016/S0967-0645(96)00077-X en eng Elsevier https://oceanrep.geomar.de/id/eprint/1242/1/1-s2.0-S096706459600077X-main.pdf Peeken, I. (1997) Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring. Deep Sea Research Part II: Topical Studies in Oceanography, 44 (1/2). pp. 261-282. DOI 10.1016/S0967-0645(96)00077-X <https://doi.org/10.1016/S0967-0645%2896%2900077-X>. doi:10.1016/S0967-0645(96)00077-X info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1997 ftoceanrep https://doi.org/10.1016/S0967-0645(96)00077-X 2023-04-07T14:43:41Z The development of phytoplankton biomass and composition was investigated on three occasions along a longitudinal transect (6°W) between 60°S and 47°S from October 13 to November 21, 1992 by measurement of photosynthetic pigments with high performance liquid chromatography (HPLC). Measured accessory pigment concentrations were multiplied by conversion factors to derive the proportions of phytoplankton groups contributing to the biomass indicator chlorophyll a. Phytoplankton blooms developed in the Polar Frontal region (PFr) and were dominated (80%) by diatoms. Other groups contributing to the phytoplankton included prymnesiophytes, green algae, autotrophic dinoflagellates, cryptophytes, pelagophytes and micromonadophytes, and their distributions varied with time. In contrast, phytoplankton biomass remained low in the southern Antarctic Circumpolar Current (ACC) and was dominated by flagellates, particularly green algae and prymnesiophytes. Green algae contributed more to total biomass than in previous investigations, partly attributed to “Chlorella-like” type organisms rather than prasinophytes. Cryptophytes decreased during the investigation, possibly due to salp grazing. No bloom was observed at the retreating ice-edge, presumably due to strong wind mixing. Only a slight increase in phytoplankton biomass, composed primarily of diatoms, was found at the ACC-Weddell Gyre front. Cluster analysis revealed that different phytoplankton communities characterised the different water masses of the PFr and southern ACC; the history of different water masses in the PFr could be reconstructed on this basis. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Austral Southern Ocean Weddell Deep Sea Research Part II: Topical Studies in Oceanography 44 1-2 261 282 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
The development of phytoplankton biomass and composition was investigated on three occasions along a longitudinal transect (6°W) between 60°S and 47°S from October 13 to November 21, 1992 by measurement of photosynthetic pigments with high performance liquid chromatography (HPLC). Measured accessory pigment concentrations were multiplied by conversion factors to derive the proportions of phytoplankton groups contributing to the biomass indicator chlorophyll a. Phytoplankton blooms developed in the Polar Frontal region (PFr) and were dominated (80%) by diatoms. Other groups contributing to the phytoplankton included prymnesiophytes, green algae, autotrophic dinoflagellates, cryptophytes, pelagophytes and micromonadophytes, and their distributions varied with time. In contrast, phytoplankton biomass remained low in the southern Antarctic Circumpolar Current (ACC) and was dominated by flagellates, particularly green algae and prymnesiophytes. Green algae contributed more to total biomass than in previous investigations, partly attributed to “Chlorella-like” type organisms rather than prasinophytes. Cryptophytes decreased during the investigation, possibly due to salp grazing. No bloom was observed at the retreating ice-edge, presumably due to strong wind mixing. Only a slight increase in phytoplankton biomass, composed primarily of diatoms, was found at the ACC-Weddell Gyre front. Cluster analysis revealed that different phytoplankton communities characterised the different water masses of the PFr and southern ACC; the history of different water masses in the PFr could be reconstructed on this basis. |
format |
Article in Journal/Newspaper |
author |
Peeken, Ilka |
spellingShingle |
Peeken, Ilka Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
author_facet |
Peeken, Ilka |
author_sort |
Peeken, Ilka |
title |
Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
title_short |
Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
title_full |
Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
title_fullStr |
Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
title_full_unstemmed |
Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring |
title_sort |
photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the southern ocean during austral spring |
publisher |
Elsevier |
publishDate |
1997 |
url |
https://oceanrep.geomar.de/id/eprint/1242/ https://oceanrep.geomar.de/id/eprint/1242/1/1-s2.0-S096706459600077X-main.pdf https://doi.org/10.1016/S0967-0645(96)00077-X |
geographic |
Antarctic Austral Southern Ocean Weddell |
geographic_facet |
Antarctic Austral Southern Ocean Weddell |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://oceanrep.geomar.de/id/eprint/1242/1/1-s2.0-S096706459600077X-main.pdf Peeken, I. (1997) Photosynthetic pigment fingerprints as indicators of phytoplankton biomass and development in different water masses of the Southern Ocean during austral spring. Deep Sea Research Part II: Topical Studies in Oceanography, 44 (1/2). pp. 261-282. DOI 10.1016/S0967-0645(96)00077-X <https://doi.org/10.1016/S0967-0645%2896%2900077-X>. doi:10.1016/S0967-0645(96)00077-X |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/S0967-0645(96)00077-X |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
44 |
container_issue |
1-2 |
container_start_page |
261 |
op_container_end_page |
282 |
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1766286368822001664 |