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Patagonia Azul: Argentina’s largest coastal marine reserve unveiled

In a landmark move for marine conservation and sustainable development, the province of Chubut has officially designated the Patagonia Azul Provincial Park—a new coastal marine reserve covering nearly 300,000 hectares of ecologically critical Atlantic shoreline and nearshore waters in southern Argentina.

Two humpback whales swim side by side just under turquoise water, aerial view
fot. Maike Friedrich / Rewilding Argentina

In brief

The legislature of Chubut province has established Parque Provincial Patagonia Azul, the largest marine reserve in the Argentine part of Patagonia, covering nearly 300 thousand hectares of coastal waters and South Atlantic coastline. The Patagonia Azul reserve introduces a total ban on industrial and recreational fishing and strict protection of seven species recognised as Natural Monuments. Fundación Rewilding Argentina donated 18,000 ha of the former Estancia San Miguel for the Portal Isla Tova centre in Camarones. Estimates point to up to 445 permanent jobs within a decade.

The reserve consolidates and expands several existing protected areas, including Cabo Dos Bahías and Isla Leones, and introduces sweeping new protections across the biologically rich Camarones coastal zone.

Critical habitat for megafauna and fisheries-relevant ecosystems

The newly protected zone includes some of the most productive marine ecosystems in the South Atlantic, including kelp forests (macroalgae beds) that act as nurseries for commercially important species. The area supports over 50 species of seabirds, such as Magellanic penguins, imperial shags, and the endemic flightless steamer ducks (pato vapor)—widely regarded as environmental health indicators.

Marine megafauna is also abundant: humpback whales, sei whales, Commerson’s dolphins, Patagonian dolphins, orcas, elephant seals, and both South American sea lion species are regularly observed in the region.

“No-take” zone with simplified enforcement

The park has been designated a strict no-take zone, prohibiting all forms of commercial and recreational fishing. Its boundaries were deliberately drawn with geometric simplicity to facilitate enforcement—responding to the persistent issue of illegal, unreported, and unregulated (IUU) fishing along Argentina’s continental shelf.

Seven species within the park—including humpbacks, sei whales, Commerson’s dolphins, and steamer ducks—have been legally declared Natural Monuments, affording them the highest level of legal protection under provincial law.

Infrastructure for eco-tourism and blue jobs

The reserve is also expected to become a driver for marine ecotourism and local job creation. The "Isla Tova Gateway," being developed in the town of Camarones, will serve as an access hub for research vessels, wildlife tours, kayaking routes, and coastal trekking trails.

A key enabler of the project was the donation of 18,000 hectares of former private land by the Rewilding Argentina Foundation. Economic forecasts suggest the initiative could generate up to 445 new jobs in sustainable tourism and support services over the next decade.

Ocean diplomacy and long-term impact

Patagonia Azul aligns Argentina with the Global 30x30 Target, which aims to protect 30% of the world’s oceans and land by 2030. In an era of escalating pressure from distant-water fleets, this strategic expansion of marine protection represents not just an environmental victory, but also a clear assertion of sovereign maritime stewardship.

Patagonia Azul emerges as a powerful blueprint for how science-based conservation, community development, and ocean governance can converge in pursuit of a resilient, sustainable marine future.

Source: Gazeta Morska · Compiled by: Kamil Kusier

Kamil Kusier executive editor All articles by this author →

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