DeLorenzo M E, Pennington P L, Chung K W, Finnegan M C, Fulton M H
National Oceanic and Atmospheric Administration, National Ocean Service, Charleston, SC, 29412, USA.
Ecotoxicology. 2009 Feb;18(2):250-8. doi: 10.1007/s10646-008-0278-x. Epub 2008 Nov 18.
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 microg/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 microg/l irgarol treatment. Growth of the hard shell clam was significantly reduced in the 1.0 and 10.0 microg/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.
使用模拟河口盐沼生态系统研究了防污化合物烯啶菌胺（Irgarol 1051）的毒性效应。为期35天的中宇宙暴露实验纳入了潮汐通量，实验装置包含海水、沉积物、沼泽草和河口生物群。烯啶菌胺（10.0微克/升）导致浮游植物生物量和初级生产力显著降低。高效液相色谱色素分析表明，烯啶菌胺对浮游植物和周丛生物群落组成均有显著影响，代表硅藻物种的色素浓度降低。在10.0微克/升烯啶菌胺处理组中，溶解氧水平也显著下降。在1.0和10.0微克/升烯啶菌胺处理组中，硬壳蛤的生长显著受到抑制。观察到的这些效应出现在烯啶菌胺浓度高于环境中通常测量浓度的情况下。然而，长期暴露、烯啶菌胺在沉积物、植物或动物组织中的积累以及烯啶菌胺与环境中其他化学物质的相互作用，可能会增加风险。
