EuroMarine networking notably occurs around and during the activities that the network organises or funds. Yearly General Assembly meetings gather representatives of all member organisations to develop EuroMarine strategy and action plan. Steering Committee meetings prepare or develop General Assembly decisions. The scientific activities, which are funded after competitive calls, always involve multiple member organisations and are open to the whole membership.

OYSTER, the EuroMarine Early Career Scientists group, develops and carries out its own yearly programme of activities.