Effects of the antifouling compound, Irgarol 1051, on a simulated estuarine salt marsh ecosystem

Toxicity effects of the antifouling compound, Irgarol 1051, were examined using a simulated estuarine salt marsh ecosystem. The 35 day mesocosm exposure incorporated tidal flux and contained seawater, sediments, marsh grass, and estuarine biota. Irgarol (10.0 μg/l) caused a significant reduction in...

Full description

Saved in:
Bibliographic Details
Published in:Ecotoxicology (London) 2009-02, Vol.18 (2), p.250-258
Main Authors: DeLorenzo, M. E, Pennington, P. L, Chung, K. W, Finnegan, M. C, Fulton, M. H
Format: Article
Language:English
Subjects:
Animal tissues
Animals
Antifouling substances
Bacillariophyceae
Biomass
Biota
Bivalvia - drug effects
Bivalvia - growth & development
Brackish
Chemical analysis
Chromatography, High Pressure Liquid
Community composition
Dissolved oxygen
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Liquid chromatography
Marine ecosystems
Oxygen - metabolism
Pesticides - toxicity
Photosynthesis - drug effects
Phytoplankton
Phytoplankton - drug effects
Phytoplankton - growth & development
Poaceae - drug effects
Population Dynamics
Salt marshes
Seawater
Triazines - toxicity
Water analysis
Wetlands
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Toxicity effects of the antifouling compound, Irgarol 1051, were examined using a simulated estuarine salt marsh ecosystem. The 35 day mesocosm exposure incorporated tidal flux and contained seawater, sediments, marsh grass, and estuarine biota. Irgarol (10.0 μg/l) caused a significant reduction in phytoplankton biomass and primary productivity. HPLC pigment analysis indicated significant effects of irgarol on both phytoplankton and periphyton community composition, with decreased concentrations of pigments representative of diatom species. There was also a significant decrease in dissolved oxygen levels in the 10.0 μg/l irgarol treatment. Growth of the hard shell clam was significantly reduced in the 1.0 and 10.0 μg/l irgarol treatments. The effects observed occurred at irgarol concentrations greater than those typically measured in the environment. Prolonged exposure, the accumulation of irgarol in sediments, plant, or animal tissues, and the interaction of irgarol with other chemicals in the environment; however, could increase risk.
ISSN:0963-9292
1573-3017
DOI:10.1007/s10646-008-0278-x