This document is an annual activity report from 2010 by CIMAR, an Associated Laboratory to the Fundação para a Ciência e a Tecnologia. It provides information on CIMAR's research team, objectives and achievements, activities, funding, general indicators, and research lines and groups. The report lists 109 member researchers with PhDs, including professors and investigators, and details the 7 main research lines and 38 research groups within CIMAR covering areas like ecology, biodiversity, environmental chemistry, toxicology, aquaculture, and marine biotechnologies.