Large contribution of small phytoplankton at Marian Cove, King George Island, Antarctica, based on long-term monitoring from 1996 to 2008

To detect and monitor coastal marine ecosystem responses to current environmental changes, the phytoplankton assemblage, salinity, and macro-nutrients were monitored daily at a fixed coastal site in Marian Cove, Antarctica, from 1996 to 2008. The monthly average water temperature at the site was hig...

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Bibliographic Details
Published in:Polar biology 2015-02, Vol.38 (2), p.207-220
Main Authors: Lee, Sang Heon, Joo, Hyoung Min, Joo, HuiTae, Kim, Bo Kyung, Song, Ho Jung, Jeon, Misa, Kang, Sung-Ho
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Chlorophyll
Coastal ecosystems
Ecology
Environmental changes
Environmental monitoring
Islands
Life Sciences
Marine ecosystems
Microbiology
Nutrients
Oceanography
Original Paper
Phytochemicals
Phytoplankton
Plankton
Plant Sciences
Salinity
Summer
Water temperature
Winter
Zoology
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Summary:To detect and monitor coastal marine ecosystem responses to current environmental changes, the phytoplankton assemblage, salinity, and macro-nutrients were monitored daily at a fixed coastal site in Marian Cove, Antarctica, from 1996 to 2008. The monthly average water temperature at the site was highest (2.14 ± 0.36 °C) during the summer period (December–February) and lowest (−1.80 ± 0.22 °C) during the winter period (July–September). The salinity levels exhibited the opposite trend with the lowest values (30.9 ± 0.68 psu) during summer and the highest values (35.2 ± 1.15 psu) during winter. The concentrations of major nutrients were always high enough for phytoplankton growth, indicating the nutrients are not a main controlling factor for phytoplankton growth. Total chlorophyll- a generally started to increase from late November with a peak (1.14 ± 1.41 mg chl- a  m −3 ) around January when the water temperature was the warmest during the year. Within the phytoplankton communities, the average contribution of small (nano- plus pico-) phytoplankton (
ISSN:0722-4060
1432-2056
DOI:10.1007/s00300-014-1579-6