Impact of engineered zinc oxide nanoparticles on the individual performance of Mytilus galloprovincialis.

Shannon K Hanna
Robert J Miller
Erik B Muller
Roger M Nisbet
Hunter S Lenihan

Open link

DOI

10.1371/journal.pone.0061800

Publisher

Public Library of Science (PLoS)

Journal

issn:1932-6203

Abstract

The increased use of engineered nanoparticles (ENPs) in consumer products raises the concern of environmental release and subsequent impacts in natural communities. We tested for physiological and demographic impacts of ZnO, a prevalent metal oxide ENP, on the mussel Mytilus galloprovincialis. We exposed mussels of two size classes, <4.5 and ≥ 4.5 cm shell length, to 0.1-2 mg l(-1) ZnO ENPs in seawater for 12 wk, and measured the effect on mussel respiration, accumulation of Zn, growth, and survival. After 12 wk of exposure to ZnO ENPs, respiration rates of mussels increased with ZnO concentration. Mussels had up to three fold more Zn in tissues than control groups after 12 wk of exposure, but patterns of Zn accumulation varied with mussel ...