Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [257782]
Hydrological regime and salinity alter the bioavailability of Cu and Zn in wetlands
Speelmans, M.; Lock, K.; Vanthuyne, D.R.J.; Hendrickx, F.; Du Laing, G.; Tack, F.M.G.; Janssen, C.R. (2010). Hydrological regime and salinity alter the bioavailability of Cu and Zn in wetlands. Environ. Pollut. 158(5): 1870-1875. https://dx.doi.org/10.1016/j.envpol.2009.10.040
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, more
Peer reviewed article  

Available in  Authors 

Keyword
Author keywords
    Flooding; Metal ecotoxicology; Oligochaete; River restoration; Salinity;Sediment

Authors  Top 

Abstract
    In the context of the European Water Framework Directive, controlled flooding of lowlands is considered as a potential water management strategy to minimise the risk of flooding of inhabited areas. However, due to historical pollution and overbank sedimentation, metal levels are elevated in most wetlands, which can cause adverse effects on the ecosystem's dynamics. Additionally, salinity affects the bioavailability of metals present or imported into these systems. The effect of different flooding regimes and salinity exposure scenarios (fresh- and brackish water conditions) on Cu and Zn accumulation in the oligochaete Tubifex tubifex (Müller, 1774) was examined. Metal mobility was closely linked to redox potential, which is directly related to the prevalent hydrological regime. Flooded, and thus more reduced, conditions minimized the availability of metals, while oxidation of the substrates during a drier period was associated with a rapid increase of metal availability and accumulation in the oligochaetes.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors