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Effect of salt marsh inundation on estuarine particulate organic matter characteristics
Hemminga, M.A.; Klap, V.A.; van Soelen, J.; Boon, J.J. (1993). Effect of salt marsh inundation on estuarine particulate organic matter characteristics. Mar. Ecol. Prog. Ser. 99(1-2): 153-161. https://dx.doi.org/10.3354/meps099153
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, meer
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| Trefwoord |
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| Author keywords |
bioassays; biodegradation; chemical composition; environmental effects; flooding; particulate organic matter; salt marshes; seston |
| Auteurs | | Top |
- Hemminga, M.A.
- Klap, V.A.
- van Soelen, J.
- Boon, J.J.
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| Abstract |
We investigated whether changes in POM were found after inundation of Saeftinge, a salt marsh in the Westerschelde estuary (SW Netherlands). Seston was collected from a tidal creek of the marsh during 22 flood-ebb tide cycles. The characteristics of the flood and ebb seston samples were assessed by microbial bioassays, pyrolysis-mass spectrometry, and the determination of chlorophyll (a+b). There was a very strong agreement between the seasonal pattern in biodegradability and the seasonal pattern in chemical signature of the seston-POM. During autumn and winter, the degradability of seston-POM in the Westerschelde was relatively low. Neither the degradability nor the chemical characteristics of the POM showed much variation in this period. The enrichment of the POM-pool with phytoplankton appeared to be the major factor increasing the biodegradability and causing the changes in chemical characteristics of seston-POM in the Westerschelde in spring and summer. Only during a 2 mo period in summer did salt marsh inundation result in consistent differences in POM characteristics between flood and ebb: compared to the POM in the flood water, the POM leaving the marsh during the ebb was more refractory. In other periods, salt marsh inundation hardly affected biodegradability and chemical composition of seston-POM. |
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