The ECS conferences are carried out every year starting in 1987 in Hirtshals (Denmark).
| ECS | Year | Date | Location | Country | Theme | Proceedings |
|---|---|---|---|---|---|---|
| 1 | 1987 | 26-28 Jan | Hirtshals | Denmark | ECS Founders Meeting | |
| 2 | 1988 | 5-7 Feb | Troia | Portugal | European Cetacean Research | |
| 3 | 1989 | 24-26 Feb | La Rochelle | France | Pollution and Pollutants | |
| 4 | 1990 | 2-4 Mar | Palma de Mallorca | Spain | Population Studies | |
| 5 | 1991 | 21-23 Feb | Sandefjord | Norway | ||
| 6 | 1992 | 20-22 Feb | San Remo | Italy | ||
| 7 | 1993 | 18-21 Feb | Inverness | United Kingdom | ||
| 8 | 1994 | 2-5 Mar | Montpellier | France | ||
| 9 | 1995 | 9-11 Feb | Lugano | Switzerland | The Acoustic World of Cetaceans | |
| 10 | 1996 | 11-13 Feb | Lisboa | Portugal | Population Biology in Relation to Conservation | |
| 11 | 1997 | 10-12 Mar | Stralsund | Germany | Behavioural Aspects of Cetacean Bycatch | |
| 12 | 1998 | 20-24 Jan | Monaco | Monaco | The World Marine Mammal Science Conference | |
| 13 | 1999 | 5-8 Apr | Valencia | Spain | Marine Mammals Conservation for the New Millenium | |
| 14 | 2000 | 2-5 Apr | Cork | Ireland | Cetaceans in the Ecosystem: Defining Critical Habitat | |
| 15 | 2001 | 6-10 May | Rome | Italy | Marine Protected Areas | |
| 16 | 2002 | 7-11 Apr | Liege | Belgium | Marine Mammal Health: From Individuals to Populations | |
| 17 | 2003 | 9-13 Mar | Las Palmas | Spain | Marine Mammals and Sound | |
| 18 | 2004 | 28-31 Mar | Kolmarden | Sweden | Experimental Approaches to Marine Mammal Research | |
| 19 | 2005 | 02-07 Apr | La Rochelle | France | Marine Mammal and Food: From Organisms to Ecosystems | abstract book |
| 20 | 2006 | 02-07 Apr | Gdynia | Poland | Marine Mammals and Man in Coastal Ecosystems - Can they co-exist? | abstract book |
| 21 | 2007 | 23-25 Apr | San Sebastian | Spain | Integrating Science and Management for Marine Mammal Conservation | abstract book |
| 22 | 2008 | 10-12 Mar | Egmond aan Zee | The Netherlands | Marine Mammals in Time | abstract book |
| 23 | 2009 | 02-04 Mar | Istanbul | Turkey | Climate Change and Marine Mammals | pdf, abstract book |
| 24 | 2010 | 22-24 Mar | Stralsund | Germany | Marine Mammal Populations: Challenges for Conservation in the next Decade | abstract book |
| 25 | 2011 | 21-23 Mar | Cadíz | Spain | Long-term Datasets on Marine Mammals: Learning from the Past to Manage the Future | abstract book |
| 26 | 2012 | 26-28 Mar | Galway | Ireland | Information and Ideas Worth Sharing | abstract book |
| 27 | 2013 | 8-10 Apr | Setúbal | Portugal | Interdisciplinary Approaches in the Study of Marine Mammals | abstract book |
| 28 | 2014 | 5-9 Apr | Liege | Belgium | Marine Mammals as Sentinels of a Changing Environment | abstract book |
| 29 | 2015 | 23-25 Mar | Malta | Malta | Marine Mammal Conservation - from Local to Global | abstract book |
| 30 | 2016 | 14-16 Mar | Funchal | Portugal | Into the Deep: Research and Conservation on Oceanic Marine Mammals | abstract book |
| 31 | 2017 | 1-3 May | Middlefart | Denmark | Conservation in the Light of Marine Spatial Use | abstract book |
| 32 | 2018 | 8-10 Apr | La Spezia | Italy | Marine Conservation - Forging Effective Strategic Partnerships | abstract book |
| # | 2019 | 9-12 Dec | Barcelona | Spain | Together for Science and Conservation | abstract book |
33 | 2022 | 5-7 Apr | Ashdod | Israel | Marine mammal research and conservation effort - Are we on the right path? | |
34 | 2023 | 18-20 Apr | O Grove, Galicia | Spain | Our Oceans, Our Future | |
35 | 2024 | 10-12 Apr | Catania, Sicily | Italy | Marine Mammals and Human Activities |