Dissolved organic carbon in the southern Baltic Sea: Quantification of factors affecting its distribution |
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Authors: | Karol Kuliński Janusz Pempkowiak |
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Institution: | Institute of Oceanology, Marine Chemistry and Biochemistry, Polish Academy of Sciences, ul. Powstańców Warszawy 55, 81-712 Sopot, Poland |
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Abstract: | During a cruise of r/v ‘Oceania’ in May 2006, seven vertical dissolved organic carbon (DOC) concentration profiles were produced against a background of CTD, chlorophyll a (chl a) and phaeopigment concentration profiles. The results indicate distinct vertical and spatial DOC fluctuations, ranging from 248 ± 7 μmol C dm−3 at 70 m depth at the westernmost station G/06 to 398 ± 5 μmol C dm−3 at 5 m depth at station A/06 in the western Gulf of Gdańsk. DOC concentrations were the highest at 10 m depth, where phytoplankton activity was relatively intensive, as reflected by the active chl a concentration distribution. DOC concentrations decreased towards the sea bottom. |
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Keywords: | DOC chlorophyll a phaeopigment segment regression |
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