Rights: © Copyright 2013. University of Waikato. All rights reserved. Image of mussel measured by calliper courtesy of Elsevier, Copyright © 2012.Impact of the parasitic pea crab Pinnotheres novaezelandiae on aquacultured New Zealand green-lipped mussels, Perna canaliculus. Trottier O, Walker D, Jeffs AG. Aquaculture 2012;344–346, 23–28. Published 14 June 2013 Size: 49 KB

The effect of pea crab infection on mussel size. This image shows some of the key findings from Oliver Trottier’s large-scale study of pea crab infection on a mussel farm in Great Barrier Island, New Zealand.