Document of bibliographic reference 75946

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Phytoplankton growth rates in the freshwater tidal reaches of the Schelde estuary (Belgium) estimated using a simple light-limited primary production model
Abstract
During the course of 1996, phytoplankton was monitored in the turbid, freshwater tidal reaches of the Schelde estuary. Using a simple light-limited primary production model, phytoplankton growth rates were estimated to evaluate whether phytoplankton could attain net positive growth rates and whether growth rates were high enough for a bloom to develop. Two phytoplankton blooms were observed in the freshwater tidal reaches. The first bloom occurred in March and was mainly situated in the most upstream reaches of the freshwater tidal zone, suggesting that it was imported from the tributary river Schelde. The second bloom occurred in July and August. This summer bloom was situated more downstream in the freshwater tidal reaches and appeared to have developed within the estuary. A comparison between phytoplankton growth rates estimated using a simple primary production model and flushing rate of the water indicated that no net increase in phytoplankton biomass was possible in March while phytoplankton could theoretically increase its biomass by 20% per day during summer. Chlorophyllaconcentrations at all times decreased strongly at salinities between 5–10 psu. This decline was ascribed to a combination of salinity stress and light limitation. Phytoplankton biomass and estimated annual net production were much higher in the freshwater tidal zone compared to the brackish reaches of the estuary (salinity > 10 psu) despite mixing depth to euphotic depth ratio's being similar. Possible reasons for this high production include high nutrient concentrations, low zooplankton grazing pressure and import of phytoplankton blooms from the tributary rivers.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS%3A000231804400009
Bibliographic citation
Muylaert, K.; Tackx, M.; Vyverman, W. (2005). Phytoplankton growth rates in the freshwater tidal reaches of the Schelde estuary (Belgium) estimated using a simple light-limited primary production model. Hydrobiologia 540(1-3): 127-140. https://dx.doi.org/10.1007/s10750-004-7128-5
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
author
Name
Wim Vyverman
Identifier
https://orcid.org/0000-0003-0850-2569
Affiliation
/id/institute/732

Links

referenced creativework
type
DOI
accessURL
https://dx.doi.org/10.1007/s10750-004-7128-5

thesaurus terms

term
Chlorophylls (term code: 1537 - defined in term set: ASFA Thesaurus List)
Estuaries (term code: 2895 - defined in term set: ASFA Thesaurus List)
Growth rate (term code: 3832 - defined in term set: ASFA Thesaurus List)
Models (term code: 5270 - defined in term set: ASFA Thesaurus List)
Phytoplankton (term code: 6208 - defined in term set: ASFA Thesaurus List)
Primary production (term code: 6539 - defined in term set: ASFA Thesaurus List)
Production cost (term code: 6556 - defined in term set: ASFA Thesaurus List)

Other terms

other terms associated with this publication
Chlorophyll-a
Freshwater tidal estuary

geographic terms

geographic terms associated with this publication
Belgium, Zeeschelde

Document metadata

date created
2005-08-29
date modified
2021-02-10