Degrees of infestation of different size classes: micro-scale comparison between bays and open coast.

<p>Proportions of shells exhibiting different degrees of infestation severity (Groups A–E, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0006560#pone-0006560-g001" target="_blank">Fig. 1</a>) and grouped into 10 mm size classes. Infestation severity was determined in the mid-mussel zone at (a) bay and (b) open coast habitats for <i>P. Perna</i> and at (c) bay and (d) open coast for <i>M. galloprovincialis.</i>