In order to advance in the implementation of the Biological Monitoring Programs for the Península Valdés Natural Protected Area (ANPPV) and the Southern Patagonia Interjurisdictional Coastal Marine Park (PIMCPA), three training sessions were held for fauna rangers, park rangers and technical staff of provincial and national agencies in charge of the management of these Protected Areas. Through its implementation, systematic and sustained information will be generated over time on the conservation status of priority biodiversity targets, which will be a key input for their adaptive management.
In the case of Península Valdés, two events were held: on May 21 and 22, training and monitoring of the migratory shorebird assemblage was conducted by Dr. Luciana Musmeci, in three locations of the protected area (Playa Fracasso, Playas Blancas and Playa Colombo), with the participation of fauna rangers and personnel from the province Wildlife Directorate. Then, on the 28th and 29th, a theoretical and practical training on mussel monitoring in intertidal environments was carried out by Drs. Gregorio Bigatti and Mariano Cumplido, which included a field trip to Punta Cuevas, Puerto Madryn, with the participation of personnel from the Secretariat of Fisheries. Meanwhile, at PIMCPA, on May 28 and 29, training and monitoring of migratory shorebirds was conducted in Caleta Malaspina, Arroyo Marea and Bahía Melo, also by Dr. Musmeci, with the participation of provincial fauna rangers and park rangers from the National Parks Administration.
The initiative is coordinated by the Ministry of Tourism and Conservation of ProtectedAreas of the Province of Chubut, the National Parks Administration and the Forum for the Conservation of the Patagonian Sea and Areas of Influence. It is implemented by the Wildlife Conservation Society Argentina, Fundación Vida Silvestre Argentina, Fundación Patagonia Natural and a team of researchers from CCT CONICET-CENPAT, within the framework of the MaRes Project, financed by the European Union.
Territorially based adaptive management
The Biological Monitoring Programs of the ANPPV and the PIMCPA are the result of the coordinated work of more than 40 people from different institutions, with experience in conservation, research and territorial management. Throughout 2023 and 2024, workshops and spaces for dialogue were held to identify the most valuable elements of the biodiversity of each site (key species, ecological communities, essential processes), defined as conservation targets.
On this shared basis, indicators were constructed to evaluate their status over time: whether they are stable, at risk or showing signs of recovery. This information will allow informed decisions to be made and management strategies to be adjusted dynamically, in line with the adaptive management approach.
The joint development of these programs was essential to ensure that the proposed methods are simple, appropriate for the teams working in the territory, and sustainable over time. In addition to the technical design, the process strengthened cooperation between institutional and territorial actors, consolidating monitoring as a living tool for collaborative management and effective conservation of coastal-marine ecosystems in the Patagonian Sea.
Migratory shorebirds and mussels, sentinels of the ecosystem
The monitoring of migratory shorebirds and mussels, which were part of the activities carried out in May, is an example of how these indicators are beginning to be implemented in the field. Both were prioritized for their ecological relevance and for being sensitive to environmental changes, making them good “thermometers” of ecosystem status.
Coastal-marine protected areas such as Peninsula Valdes and PIMCPA function as natural wetlands and critical resting and feeding sites for thousands of shorebirds that migrate between the Arctic and South America. Species such as the red knot, the white-rumped sandpiper, the two-banded plover or the magellanic oystercatcher find in these environments an essential refuge. Their presence, abundance and behavior make it possible to detect alterations in habitat quality.
On this point, Juan Pombo, PIMCPA park ranger said: “One always tends to look for the service or role that species have in the ecosystem, and from there arises the justification for their conservation as a species. Of course, shorebirds are indicators of the health of the oceans and coastal environments, but each species has its own intrinsic value. And that should be more than enough justification to conserve them.”
The blue mussel (Mytilus platensis) and the cholga (Aulacomya atra) play key roles in the intertidal ecosystem: they filter water, stabilize sediments and create microhabitats that favor biodiversity. In addition, they are especially sensitive to pollution, temperature increase and unregulated extraction, so their monitoring allows us to anticipate impacts and guide conservation policies.
Mariano Cumplido Esmoris, a fellow at the Center for the Study of Marine Systems (CESIMAR-CONICET), explains: “In the objectives of the Península Valdés natural protected area, mussels, cholgas and other marine invertebrates are recognized as key species; however, there are no precise estimates of species abundance or fishing management programs. Artisanal fishermen in the area are extracting more mussels, considering the depletion of the tehuelche scallop population in recent years, and tourism extracts mussels and cholgas for consumption and sale without any control. Therefore, it is extremely necessary to carry out monitoring over time to obtain information that provides data for their management and conservation.”
Monitoring to take care of what matters
Biological monitoring is not just a technical tool: it is a way of listening to the territory. Reading the signals emitted by the ecosystem and acting in time is key to its protection. Betting on the training of those in the field and strengthening alliances with the scientific sector is to invest in a future where protected areas are not islands, but living nodes of knowledge, participation and resilience.
Faced with a scenario of increasing pressures on marine and coastal ecosystems, initiatives like this remind us that conservation is not an isolated gesture, but a collective and sustained commitment. It requires science, coordination, political will and a common vision of the irreplaceable value of the biodiversity of the Patagonian Sea.
