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    Seasonal variation in particulate organic matter and its cnstituent fractions under the ice covered sea near the shelf, Antarctica

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    DOD_Tech_Publ_1988_5_331.pdf (548.9Kb)
    Date
    1988
    Author
    Dhargalkar, V.K.
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    Abstract
    Particulate organic matter (POM) collected at a single station in the shelf waters of Princess Astrid coast (70 degrees S : 11 degrees E), Antarctica from May to December, 1986 was analyzed for chl @ia@@, POC and other constituent fractions at three discrete depths. Chl @ia@@ concentration at all the 3 depths varied from 0.026 to 0.253 mu g l@u-1@@ showing minimum values during August-September. POC values varied from 280 to 1058 mu g l@u-1@@ while its constituent fractions such as particulate carbohydrates (PCHO), particulate proteins (PP) and particulate lipids (PL) varied from 14 to 193, 6 to 200 and 8 to 174 mu g l@u-1@@, respectively. Significant correlation existed between POC and Chl @ia@@, PP and PL at 10 m depth. This was in contrast to PCHO and chl @ia@@. The components studied showed seasonal variation suggesting that the sea ice microalgae and planktonic organisms contribute substantially to particulate organic matter
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    http://drs.nio.org/drs/handle/2264/7096
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