Oxygen regime,respiratory activity and biomass of microorganisms,and the carbon budget in the Fladen Ground area (Northern North Sea) during spring |
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Institution: | 1. Institute of Geosciences, University of Mainz, Johann-Joachim-Becher-Weg 21, 55128 Mainz, Germany;2. Institute for Geology, Leibniz University Hanover, Callinstraße 30, 30167 Hanover, Germany;1. Division of Radiation Biodosimetry, Institute of Nuclear Medicine and Allied Sciences (INMAS)-Defence Research and Development Organisation (DRDO), Brig. SK Mazumdar Marg, Timarpur, Delhi 110054, India;2. Department of Pharmacology, School of Pharmaceutical Education and Research, Hamdard University, Hamdard nagar, New Delhi 110062, India;3. Pediatrics Genetics & Research Laboratory, Department of Pediatrics, Maulana Azad Medical College & Associated Lok Nayak Hospital, Delhi 110002, India |
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Abstract: | A watermass, on the Fladen Grounds, marked with a drifting buoy, was studied daily during one month in spring. Hydrographic parameters, nutrient regime, oxygen regime, biomass of microorganisms and respiratory activity were determined; the high variability of the observations is discussed. From these observations, and earlier publications on the same cruise, a carbon budget is calculated. From oxygen flux calculations it appeared that the net ecosystem production must be more than 2.5 g C m−2.d−1 which could not be verified by C-14 primary production measurements. Presumably high variability in the system in time and space makes it impossible to get a fitting budget. |
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