Accumulation of Cu and Zn from antifouling paint particles by the marine macroalga, Ulva lactuca.
The marine macroalga, Ulva lactuca, has been exposed to different concentrations of antifouling paint particles (4-200 mg L(-1)) in the presence of a fixed quantity of clean estuarine sediment and its photosynthetic response and accumulation of Cu and Zn monitored over a period of 2 days. An immediate (<2 h) toxic effect was elicited under all experimental conditions that was quantitatively related to the concentration of contaminated particles present. Likewise, the rate of leaching of both Cu and Zn was correlated with the concentration of paint particles added. Copper accumulation by the alga increased linearly with aqueous Cu concentration, largely through adsorption to the cell surface, but significant accumulation of Zn was not observed. Thus, in coastal environments where boat maintenance is practiced, discarded antifouling paint particles are an important source of Cu, but not Zn, to U. lactuca.
Turner
Andrew
A
School of Earth, Ocean and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK. aturner@plymouth.ac.uk
Pollock
Heather
H
Brown
Murray T
MT
D003300:Copper / Q000378:metabolism* / Q000633:toxicity; D004202:Disinfectants / Q000378:metabolism* / Q000633:toxicity; D058735:Environmental Policy; D010788:Photosynthesis / Q000187:drug effects; D012623:Seawater / Q000737:chemistry; D044445:Ulva / Q000187:drug effects / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism* / Q000633:toxicity; D014877:Water Pollution, Chemical / Q000331:legislation & jurisprudence / Q000517:prevention & control; D015032:Zinc / Q000378:metabolism* / Q000633:toxicity
D004202:Disinfectants; D014874:Water Pollutants, Chemical; D003300:Copper; D015032:Zinc