The Norwegian Institute for Water Research (NIVA) is Norway’s leading institute for basic and applied research on marine and freshwaters. The institute’s research comprises a wide array of environmental, climatic and resource-related fields. NIVA’s world-class expertise is multidisciplinary with a broad scientific scope. Their profile is including combine research, monitoring, evaluation, problem-solving and advisory services at international, national and local levels. NIVA has expertise on environmental impacts of/on salmon aquaculture, hereunder EIA and carrying capacity assessment; hydrodynamic, biogeochemical and ecosystem modelling and in-situ monitoring; bioeconomic modelling and valuation of ecosystem goods and services; participatory approaches, stakeholder involvement, and empowerment; participate in Norwegian Ferrybox network with direct access to large scale in-situ data and long-time monitoring data. NIVA is having an important role in the WP4 in assessing the ecosystems services provided by European Aquaculture.