Mamacocha is Sea Shepherd’s campaign addressing Illegal, Unreported, and Unregulated (IUU) fishing in the Eastern Tropical Pacific Biodiversity Corridor. The campaign covers nearly two million square kilometers (770,000 square miles) of ocean. The corridor encompasses the waters, coasts and islands off the shores of Costa Rica, Panama, Colombia, Ecuador and Peru. It includes the Galápagos Islands and Marine Reserve, Cocos Island, Malpelo Island, and Coiba National Park, all of which are UNESCO World Heritage Sites.


Due to a convergence of major oceanic currents, including the cold Humboldt upwelling off the Nazca Ridge in South America, the waters of the Eastern Tropical Pacific are incredibly rich in nutrients and biodiversity. They are home to 88 species of sharks, giant oceanic mantas, sea turtles, dolphins, and blue whales, along with thousands of other species.

These areas are under threat from IUU fishing. Sea Shepherd’s high-speed interceptor vessel M/V Brigitte Bardot is currently in the region to prevent IUU fishing by:

  • Gathering intelligence and reporting illegal activity to regional federal enforcement agencies.
  • Patrolling in areas outside national boundaries, thereby providing a deterrent to vessels inclined to operate outside the law on the high seas.
  • Providing continued legal and policy support through our Sea Shepherd Legal division to ensure that reported transgressions are properly addressed and IUU fishing deterrence can be achieved in the long-term.