This article refers to:
Cahill, P., Heasman, K., Jeffs, A., Kuhajek, J. and Mountfort, D. (2012). Preventing ascidian fouling in aquaculture: screening selected allelochemicals for anti-metamorphic properties in ascidian larvae. Biofouling, 28(1), pp. 39–49. http://dx.doi.org/10.1080/08927014.2011.648624.
When the above article was published, the authors regret that lines 3‒7, on page 46 should have read as follows:
Furthermore, medetomidine, a compound currently being developed as an environmentally sustainable antifouling agent (Lenquist et al. 2010), interferes with larval settlement in S. clava, with a 50% effective concentration of 3.8 μg ml−1 (Willis & Woods 2011).
The authors would like to apologise for this error.