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Estimation of phytoplankton photosynthesis and nutrient limitation in the Eastern Scheldt estuary using variable fluorescence

Estimation of phytoplankton photosynthesis and nutrient limitation in the Eastern Scheldt estuary... Aquatic Ecology 33: 101–104, 1999. © 1999 Kluwer Academic Publishers. Printed in the Netherlands. Estimation of phytoplankton photosynthesis and nutrient limitation in the Eastern Scheldt estuary using variable fluorescence Jacco Kromkamp and Jan Peene NIOO-CEMO, PO Box 140, 4400 AC Yerseke, The Netherlands (E-mail: kromkamp@cemo.nioo.knaw.nl) Accepted 28 January 1999 Key words: chlorophyll fluorescence, nutrient limitation, phytoplankton, photosynthesis, quantum efficiency Introduction Chlorophyll fluorescence was measured using a PAM101-103 fluorometer (Walz) equipped with a Since the completion in 1986 of a storm-surge bar- ED101US emitter detector unit. Samples were con- rier in the Eastern Scheldt estuary (The Netherlands) centrated by filtration (1–5 m filters). After a 15- the water transparency has increased considerably. min. dark adaptation, the maximum (Fm) and mini- Because of compartment dams most of the nutrient mum (Fo) fluorescence were measured. The maximum imports from the rivers Rhine and Meuse have de- quantum efficiency Fv/Fm (D(Fm-Fo)/Fm) was used creased. As a result, the light- and silicate-limitation to estimate nutrient limitation. Non-limited phyto- experienced by the phytoplankton in the pre-barrier plankton has Fv=Fm-values from 0.6 to 0.7. The ef- 0 0 0 period changed most likely into a limitation of silicate fective quantum efficiency 1F/Fm (D(Fm -Fs)/Fm ) and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aquatic Ecology Springer Journals

Estimation of phytoplankton photosynthesis and nutrient limitation in the Eastern Scheldt estuary using variable fluorescence

Kromkamp, Jacco; Peene, Jan
Aquatic Ecology , Volume 33 (1) – Oct 3, 2004
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References (7)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Life Sciences; Freshwater & Marine Ecology; Ecosystems
ISSN
1386-2588
eISSN
1573-5125
DOI
10.1023/A:1009900124650
Publisher site
See Article on Publisher Site

Abstract

Aquatic Ecology 33: 101–104, 1999. © 1999 Kluwer Academic Publishers. Printed in the Netherlands. Estimation of phytoplankton photosynthesis and nutrient limitation in the Eastern Scheldt estuary using variable fluorescence Jacco Kromkamp and Jan Peene NIOO-CEMO, PO Box 140, 4400 AC Yerseke, The Netherlands (E-mail: kromkamp@cemo.nioo.knaw.nl) Accepted 28 January 1999 Key words: chlorophyll fluorescence, nutrient limitation, phytoplankton, photosynthesis, quantum efficiency Introduction Chlorophyll fluorescence was measured using a PAM101-103 fluorometer (Walz) equipped with a Since the completion in 1986 of a storm-surge bar- ED101US emitter detector unit. Samples were con- rier in the Eastern Scheldt estuary (The Netherlands) centrated by filtration (1–5 m filters). After a 15- the water transparency has increased considerably. min. dark adaptation, the maximum (Fm) and mini- Because of compartment dams most of the nutrient mum (Fo) fluorescence were measured. The maximum imports from the rivers Rhine and Meuse have de- quantum efficiency Fv/Fm (D(Fm-Fo)/Fm) was used creased. As a result, the light- and silicate-limitation to estimate nutrient limitation. Non-limited phyto- experienced by the phytoplankton in the pre-barrier plankton has Fv=Fm-values from 0.6 to 0.7. The ef- 0 0 0 period changed most likely into a limitation of silicate fective quantum efficiency 1F/Fm (D(Fm -Fs)/Fm ) and

Journal

Aquatic Ecology – Springer Journals

Published: Oct 3, 2004

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