First Plenary Meeting: June 15-17, 2004 (New York, USA). Organizers: Wildlife Conservation Society (WCS) and BirdLife International (BLI). Participants: 33 representatives from 16 organizations. Topics: Advance the foundation stage and create a basic structure in order to undertake the first actions.
Second Plenary Meeting: March 15-16, 2005 (Colonia, Uruguay). Organizers: WCS, BLI and Fundación Vida Silvestre Argentina (FVSA). Participants: 23 representatives from 15 organizations. Topics: Define vision, mission and principles, define the areas of influence, propose the governance structure and the Steering Group composition, advance in the organization of Working Groups, establish the ways to finance immediate goals.
Third Plenary Meeting: November 21-23, 2005 (Puerto Madryn, Argentina). Organizers: From now on, the organizer of plenary meetings is the Forum via its Coordinator (Rodolfo Werner had been appointed as the first Coordinator in October 2005). Host: Fundación Ecocentro. Participants: 21 representatives from 13 organizations. Topics: election of the first Steering Group; appointment of Claudio Campagna (WCS) as president of the Steering Group; approval of the Coordinator working plan; decision on the communications protocol; re-assessment of Working Group structure.
Fourth Plenary Meeting: July 5-7, 2006 (Mar de Plata, Argentina). Host: FVSA. Participants: 30 representatives from 19 organizations. The meeting was preceded by the “4P” communications workshop hosted by Conservation International (CI). Topics: creation of a Working Group in charge of advancing the joint diagnosis on the state of the Patagonian Sea ecosystem.
Fifth Plenary Meeting: March 29-30, 2007 (Universidad Católica Argentina, Buenos Aires, Argentina). The meeting was preceded by the expert panel workshop (March 26-28, 2007, same venue). Participants: 33 representatives from 15 organizations. Topics: The plenary meeting was devoted to planning the contents and objectives of the diagnosis on the state of the Patagonian Sea ecosystem, with support of expert advice from special guests. The expert panel members were: Guillermo Harris, Alberto Piola, José (Lobo) Orensanz, José Luis Esteves, Martin Hall, Graciela Tapia, Max Agüero Negrete, and Alejandro Robles.
Sixth Plenary Meeting: March 26-29, 2008 (Pinamar, Argentina). Host: Fundación Aquamarina. Participants: 27 representatives from 17 organizations. Topics: The approval of the last steps in the conservation status of the Patagonian Sea project.
Seventh Plenary Meeting: June 11-12, 2009 (Aves Argentinas/ BirdLife head office, Buenos Aires, Argentina). Host: BirdLife International. Participants: 28 representatives from 15 organizations. Topics: “SWOT” strategic analysis regarding internal and context factors in order to produce a joint advocacy strategy. During this meeting, the “Forum Lighthouses” idea was born.
Eighth Plenary Meeting: April 19-21, 2010 (Aves Argentinas/ BirdLife head office, Buenos Aires, Argentina). Host: BirdLife International. Participants: 33 representatives from 16 organizations. Topics: "Forum Lighthouses" inventory and prioritization; planning of future actions involving indicators on the state of the marine ecosystem; discussion of actions regarding marine pollution.
Ninth Plenary Meeting: May 10-11, 2011 (Heinrich Böll Foundation, Southern Cone office, Santiago de Chile). Host: Oceana América del Sur. Participants: 26 representatives from 17 organizations. Topics: strengthening the Forum in Chile; advocacy in international bodies; importance of the regional integration regarding conservation policies. A regional seminar was convened during the first day, open to non-member organizations, scientists, philantropists and government officers. This encompassed a poster exhibit and a final round-table.
Tenth Plenary Meeting: April 17-20, 2012 (Zoológico Municipal de Montevideo, Uruguay). The plenary meeting itself had 26 participants from 15 organizations. CICMAR (Uruguay), Fórum do Mar (Brasil) and Avina were observers. The main issue was progress made by the Forum Working Groups. The group on the “Lighthouses of the Patagonian Sea” presented an extensive report on relevant sites for the conservation of marine biodiversity. The Clean Patagonian Sea group presented a report assessing pollution threats of some of the “Lighthouses” sites. The Young Leaders for Marine Conservation initiative pointed out the achievements of their second year of capacity-building activities. The second Regional Seminar on Marine Conservation (held just before the start of the Plenary Meeting) was attended by about 50 participants (besides Forum members, there were government officers, scientists, NGOs and journalists). Experts from governmental agencies and from Forum member organizations made presentations on the state of the ecosystem and they introduced relevant research and conservation initiatives as well.
Eleventh Plenary Meeting: May 6-8, 2013 (Aves Argentinas / BirdLife, Ciudad Autónoma de Buenos Aires, Argentina). The plenary meeting itself was attended by 37 participants in total. Of those, 27 were representatives belonging to 11 Forum members, and the remaining persons were special guests and observers from other seven organizations. The meeting was devoted to discussing guidelines for the new strategic objectives of the Forum, mainly regarding relevant sites for marine biodiversity (Lighthouses of the Patagonian Sea), fisheries, capacity-building and marine pollution. There was also an assessment on potential donors that could be interested in supporting forthcoming Forum activities. The “Forum Open Session” was convened just before the start of the Plenary Meeting and had at least 49 participants belonging to 31 organizations (government agencies, NGOs, Academia). The open session encompassed a panel on current approaches for marine conservation and a round-table on public policies.