Document of bibliographic reference 23817

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Effects of freshets on phytoplankton dynamics in a freshwater tidal estuary (Schelde, Belgium)
Abstract
From August to October 1996, a station in the freshwater tidal reaches of the Schelde estuary was sampled every two days to study short-term changes in the phytoplankton community. The monitoring study started after a long period of low and constant discharge and our data suggest that at that time, phytoplankton productivity was bottom-up limited by silica and/or top-down controlled by grazers. Rainfall in the middle of August resulted in a flushing of almost half of the estuarine volume upstream of our monitoring station. This fresher ended the period of limitation by removing grazers as well as supplying new silica, while having no direct effect on total phytoplankton biomass. It was followed by a gradual increase in phytoplankton biomass. An extremely high runoff event caused by a storm at the end of August resulted in a flushing of the entire freshwater tidal reach. Phytoplankton biomass dropped and the estuarine phytoplankton community was replaced with one of riverine origin which was not adapted to the growth conditions prevailing within the estuary. Afterwards, autochthonous phytoplankton populations were not able to recover due to the presence of grazers and a general decrease in light levels and temperature. Our results illustrate how freshets may influence phytoplankton dynamics directly through longitudinal transport of phytoplankton populations and indirectly by influencing nutrient levels and grazer populations.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS%3A000166735300006
Bibliographic citation
Muylaert, K.; Van Wichelen, J.; Sabbe, K.; Vyverman, W. (2001). Effects of freshets on phytoplankton dynamics in a freshwater tidal estuary (Schelde, Belgium). Arch. Hydrobiol. 150(2): 269-288
Topic
Marine
Fresh water
Brakish water
Is peer reviewed
true

Authors

author
Name
Koenraad Muylaert
Identifier
https://orcid.org/0000-0001-9645-4063
Affiliation
/id/institute/732
author
Name
Jeroen Van Wichelen
Identifier
https://orcid.org/0000-0002-0255-9591
author
Name
Koen Sabbe
Identifier
https://orcid.org/0000-0001-5163-5581
author
Name
Wim Vyverman
Identifier
https://orcid.org/0000-0003-0850-2569

thesaurus terms

term
Chlorophyll (term code: 58689 - defined in term set: CSA Technology Research Database Master Thesaurus)
Chlorophyll (term code: 125562 - defined in term set: CAB Thesaurus)
Community (term code: 150368 - defined in term set: CAB Thesaurus)
Diatoms (term code: 2303 - defined in term set: ASFA Thesaurus List)
Estuaries (term code: 2895 - defined in term set: ASFA Thesaurus List)
Flushing (term code: 3369 - defined in term set: ASFA Thesaurus List)
Phytoplankton (term code: 6208 - defined in term set: ASFA Thesaurus List)
Productivity (term code: 65479 - defined in term set: CSA Technology Research Database Master Thesaurus)
Productivity (term code: 93710 - defined in term set: Transportation Research Thesaurus)
Productivity (term code: 118507 - defined in term set: CAB Thesaurus)
River (term code: 150348 - defined in term set: CAB Thesaurus)
Silica (term code: 7647 - defined in term set: ASFA Thesaurus List)
Water (term code: 9074 - defined in term set: ASFA Thesaurus List)
Zooplankton (term code: 9443 - defined in term set: ASFA Thesaurus List)

Other terms

other terms associated with this publication
Flushing events
Freshwater tidal estuary
Limitation
Silica limitation
Zooplankton grazing

geographic terms

geographic terms associated with this publication
ANE, Belgium
ANE, Netherlands, Westerschelde
Belgium, Schelde R.
Netherlands

Document metadata

date created
2002-04-03
date modified
2018-05-17