Document of bibliographic reference 75943

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Influence of changes in salinity and light intensity on growth of phytoplankton communities from the Schelde river and estuary (Belgium/The Netherlands)
Abstract
In the Schelde continuum, a succession in the phytoplankton community is observed along the transition from the river to the freshwater tidal reaches of the estuary and from the freshwater to brackish reaches of the estuary. The goal of this study was to experimentally evaluate the contribution of changes in salinity and light climate to this succession. In summer 2000 and in spring 2001, phytoplankton communities from the river, the freshwater tidal reaches and the brackish reaches of the estuary were incubated under high or low light intensities and exposed to a change in salinity. HPLC analysis was used to evaluate the response of different algal groups to changes in light intensity and salinity. When incubated at a light intensity corresponding to the mean underwater light intensity of the freshwater tidal reaches, growth of phytoplankton from the river as well as from freshwater tidal reaches was significantly lower than when incubated at a light intensity corresponding to the mean underwater light intensity of the river. The phytoplankton community from the freshwater tidal reaches did not appear to be better adapted to low light intensities than the phytoplankton community from the river. Although diatoms were expected to be less sensitive to a reduction in light intensity than green algae, the opposite response was observed. Freshwater and brackish water phytoplankton were negatively affected by respectively an increase or decrease in salinity. However, the effect of salinity was not strong enough to explain the disappearance of freshwater and brackish water phytoplankton between a salinity of 0.5 and 10 psu, suggesting that other factors also play a role. In the freshwater phytoplankton communities from the river and the freshwater tidal reaches, green algae and diatoms responded in a similar way to an increase in salinity. In the brackish water phytoplankton community, fucoxanthin displayed a different response to salinity than lutein and chlorophyll a.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS%3A000231804400007
Bibliographic citation
Lionard, M.; Muylaert, K.; Van Gansbeke, D.; Vyverman, W. (2005). Influence of changes in salinity and light intensity on growth of phytoplankton communities from the Schelde river and estuary (Belgium/The Netherlands). Hydrobiologia 540(1-3): 105-115. https://dx.doi.org/10.1007/s10750-004-7123-x
Topic
Marine
Fresh water
Is peer reviewed
true

Authors

author
Name
Marie Lionard
Affiliation
/id/institute/732
author
Name
Koenraad Muylaert
Identifier
https://orcid.org/0000-0001-9645-4063
Affiliation
/id/institute/732
author
Name
Dirk Van Gansbeke
Affiliation
/id/institute/13
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/s10750-004-7123-x

thesaurus terms

term
Estuaries (term code: 2895 - defined in term set: ASFA Thesaurus List)
Irradiance (term code: 4466 - defined in term set: ASFA Thesaurus List)
Phytoplankton (term code: 6208 - defined in term set: ASFA Thesaurus List)
Pigments (term code: 6214 - defined in term set: ASFA Thesaurus List)
Rivers (term code: 7023 - defined in term set: ASFA Thesaurus List)
Salinity (term code: 7093 - defined in term set: ASFA Thesaurus List)

geographic terms

geographic terms associated with this publication
Belgium, Schelde R.
Belgium, Zeeschelde

Document metadata

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