DO*MAR Phd Program 2013-2014. During this course ("Ecotoxicology and Environmental Risk Assessment") attention will be given to the practical approach of ecotoxicological studies. The sessions will focus in sublethal toxicity; control of dosing; how to monitor and understand the key factors responsible of the contamination of the oceans; how to evaluate the risks using biomarkers; how to implement environmental quality criteria for the protection of marine environment and the EU-related legislation.