Eastern Pacific Ocean

Facts

  • Continent
    The Americas
  • Species
    Whales, Tuna, Marine turtles, Sharks, Whale sharks

The Eastern Pacific Ocean spans the west coast of the Americas, crossing 13 countries from Canada to Chile. WWF focuses our seascape work in the Eastern Pacific along the coasts and waters of Mexico, Colombia, Peru, Ecuador, and Chile to achieve positive change for biodiversity, people, and climate by 2030. Together, these five countries encompass approximately 10 million square kilometers (about the size of Canada) of territorial waters, Exclusive Economic Zones, and island territories. Their diverse marine habitats range from rocky shores and sandy beaches to mangroves, coral reefs, seagrass beds, and pelagic waters. Important fisheries like tuna, mahi mahi, and squid support local communities and export markets. However, the region faces growing natural and human-driven threats, such as climate change, overfishing, pollution, and habitat destruction, significantly challenging the conservation and sustainable use of its marine resources.

How WWF is preparing mangroves for a new climate future

The new Climate-Smart Mangrove Tool will help ensure the long-term viability and effectiveness of mangroves in the fight against climate change. 

forest of mangroves on beach in Colombia

Species

Galapagos green turtle swimming in the ocean

The Eastern Pacific seascape has a rich biodiversity with highly migratory species such as whales, sea turtles, sharks, and manta rays, and numerous marine species endemic of this region. Ocean currents, such as the California, Humboldt, and Equatorial Undercurrent, bring cold, nutrient-rich waters to the surface, providing vital foraging habitat for many migratory fish, marine mammals, and seabird species. The region is a critical migratory corridor for more than 40 species of whales and dolphins. The Galápagos Islands, off Ecuador’s coast, hold incredible and unique terrestrial and marine life, including marine iguanas, Galápagos penguins, sea lions, and several species of sharks and rays.

People & Communities

Colorful painted mural showing people seaside with daily catch

Over 250 million people live in Mexico, Colombia, Ecuador, Peru, and Chile. The people and economies of these countries largely depend on their blue sectors, which include artisanal and industrial fishing, aquaculture, shipping, and marine tourism. The health of the ecosystems and species in the Eastern Pacific is a vital part of the prosperity of communities.

Threats

Aerial photo of manmade ponds for shrimp farming

Mangrove forest has been cleared for shrimp farms in Isla Escalante, Ecuador.

Maritime Crime

High poverty rates can drive people toward illegal activities as a means of survival, particularly in coastal communities with limited livelihoods beyond fishing or tourism. The convergence of poverty, corruption, and weak governance creates an enabling environment for maritime crime, including drug trafficking, illegal fishing, and piracy, and is prevalent in the Eastern Pacific. Criminal organizations exploit these vulnerabilities to build transboundary illicit networks.

Unsustainable Fishing and Aquaculture

The sustainability of key fisheries is threatened by illegal, unreported, and unregulated fishing across the seascape, including mahi mahi, squid, and tuna. Illegal fishing fuels geopolitical and maritime conflicts over resources. Certain fishing practices can also result in bycatch of vulnerable marine species including leatherback and green sea turtles, sharks, rays, seabirds, and marine mammals. Meanwhile, the expansion of unsustainable shrimp aquaculture operations into mangrove forests, critical to climate mitigation and coastal protection, has led to significant mangrove loss in Mexico, Colombia, and Ecuador.

Ghost gear and plastic pollution

Millions of tons of plastics enter marine habitats in the region every year, endangering marine species and ecosystems. Major sources include improper waste management, industrial production from vessels and ports, tourism, and fishing-related waste especially “ghost gear” (abandoned, lost, or discarded fishing gear). Ghost gear can damage vulnerable habitats and can kill or entangle marine animals. In the Galápagos, one-third of marine species are at risk from entanglement or ingestion of plastics, while in mainland Ecuador, piracy is a leading cause of abandoned fishing gear.

Lack of management and financing

In Eastern Pacific Seascape countries, ineffective and inequitable management of protected and conserved areas has resulted in “paper parks” that offer little protection for critical ecosystems. Additionally, inadequate consultations with Indigenous peoples and local communities, combined with insufficient enforcement capacity, undermines protected areas, jeopardizes the livelihoods of coastal communities dependent on marine resources, and can create opportunities for corruption. Sustained funding is vital for strong, long-term management of protected areas and the currently limited resources available to support management worsens these issues.

Social Inequities

The safety, well-being, and cultural traditions of many communities, particularly Indigenous groups, are jeopardized by overfishing, climate change, and habitat destruction. While fisheries and aquaculture bring prosperity to the region, various social, political, or educational barriers often limits who benefits. For example, women may face restricted opportunities due to limited access to financial services and gender norms that constrains their ability to grow fishery enterprises and limiting independence. Although many regional fisheries are not considered high-risk, labor abuses including sexual harassment, unfair wages, and violence against anti-IUU observers on fishing vessels, are common.

What WWF Is Doing

A group of people in WWF t-shirts gathered in front of fishing boats

WWF brought together fishers from Chile, Mexico and Peru in a knowledge exchange.

Mangrove Restoration & Protection

Mangrove trees line Mexico, Colombia, and Ecuador coastlines and provide critical ecosystem services. WWF works with communities on climate-smart mangrove restoration and protection and on insurance mechanisms that support sustainable shrimp farming around mangrove forests. Our work has helped secure more than 1.6 billion tons of carbon in the region.

Developing More Sustainable Blue Foods

For over 15 years, WWF has taken a holistic approach to blue foods in the Eastern Pacific. We work closely with fishing communities and regional fishery management organizations to support local livelihoods while minimizing negative ecosystem impacts of seafood production. Many wild-caught and farmed seafood products from the region are exported to the United States, making WWF partnerships with US-based seafood companies key to transparency and traceability improvement efforts. WWF also co-launched the Fisheries Improvement Fund in 2023, a blue finance mechanism to raise upfront funding to support fishery improvements.

Advancing Marine and Coastal Protection

WWF works through a comprehensive and community-driven approach to advance large-scale marine protection ambitions in the Eastern Pacific. We work with rights holders, national governments, and regional management bodies to support new and existing locally-led marine protected areas and other area-based conservation measures that promote equitable governance, effective and participatory management, and sustainable financing. For example, WWF is supporting management plans of Ecuador’s expanded Galápagos Marine Reserve. By empowering communities and applying science-based management, we protect marine biodiversity, enhance climate resilience, promote sustainable livelihoods, and contribute to the global goal of protecting 30% of the ocean by 2030.

Protecting Migratory Wildlife

Spanning over 7 million square miles from Mexico to Chile, the Eastern Pacific, “blue corridor” is a critical migratory route for whales. WWF works through multiple pathways to protect this corridor including by advocating for regional policies, driving regional policy and conservation action; raising public awareness through campaigns and educational initiatives; tracking migratory patterns of whale species to understand effective protection measures; and collaborating with coastal communities to implement bycatch and ghost gear solutions and sustainable nature-based tourism enterprises. This work not only helps whales, but other migratory species including sharks, rays, and sea turtles.

Projects

Experts