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Respiration rates in the Changjiang River mouth and the adjacent East China Sea: relations with bacteria and phytoplankton
Courties, C.; Shi, J.; Ning, X.; Chen, Z.; Lasserre, P. (1989). Respiration rates in the Changjiang River mouth and the adjacent East China Sea: relations with bacteria and phytoplankton, in: Ros, J.D. (Ed.) Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona), 53(2-3): pp. 167-174
In: Ros, J.D. (Ed.) (1989). Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. European Marine Biology Symposia, 22. Scientia Marina (Barcelona), 53(2-3). 145-754 pp., meer
In: European Marine Biology Symposia., meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Auteurs | | Top |
- Courties, C.
- Shi, J.
- Ning, X.
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- Chen, Z.
- Lasserre, P., meer
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| Abstract |
Two cruises were made in January and July 1986 in the mouth of the Changjiang (Yang Tse) River and the East China Sea (30045'-32°00'N, 121°00'-124°00'E). The seawater oxygen uptake was measured for the first time using polarographic oxygen sensors in closed chambers which allowed continuous monitoring of oxygen concentration. Subsamples were taken for determination of suspended matter, bacterial numbers, and chlorophyll a. Respiration rates were lower in winter (3.5 to 0.5 µl O2l-1h-1) than in summer (4 to 12 µl O2l-1h-1). In winter, the oxygen uptake seemed to be related to bacterial numbers in the whole studied area. In summer, the relationship between oxygen uptake and bacteria holds only in the estuary. Off-shore in summer, oxygen consumption was directly related to chlorophyll a and therefore to phytoplankton populations. |
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