<h2><b>Book of abstracts of theme session E:</b></h2><h3>Environmental risk assessment of aquaculture (co-sponsored by PICES)</h3><h4>Conveners: Ellen Sofie Grefsrud (Norway), Liu Hui (China), Monica Solberg (Norway), Nianzhi Jiao (China)</h4><ul><li>CM 66: Modelling ecosystem assimilation capacity for a sustainable aquaculture in France: the MOCAA project</li><li>CM 121: Observation of marine phycotoxins in phytoplankton and shellfish in three typical mariculture areas of the East China Sea during 2020–2021</li><li>CM 173: Sea trout: an effect indicator for Atlantic salmon aquaculture management</li><li>CM 201: Factors explaining the occurrence of escaped farmed salmon and level of genetic introgression in wild salmon populations</li><li>CM 236: Ecological impacts of farming mussels offshore: The Lyme Bay case study</li><li>CM 292: Setting up a framework for mariculture risk assessment in China</li><li>CM 312: Genetic introgression of escaped farmed salmon – what have we learned from the Norwegian large-scale experiment?</li><li>CM 313: Introduction to the Paradigm of Seaweed Culture as an Eco-engineering Strategy for Ocean Negative Carbon Emissions (ONCE)</li><li>CM 429: Carrying Capacity Assessment of a Fjord in Iceland, Arnarfjörður</li><li>CM 495: The Quality Standard for wild Atlantic salmon populations in Norway</li><li>CM 583: Risk of genetic impact from escaped farmed Atlantic salmon from a given farming location</li></ul>