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Help Track Down Illegal Fishing Boats in Cocos Island, Costa Rica From Your Computer

Turtle Island Restoration Network is proud to announce a new pilot program to find illegal fishing vessels within the Marine Protected Area surrounding Cocos Island, Costa Rica. Turtle Island teamed up with DigitalGlobe’s crowdsourcing platform, Tomnod.com, to create one of the first crowd sourced, digital patrols of the marine hot-spot using satellite imagery.

Cocos Island is an important stop over for large marine wildlife like hammerhead sharks, Galapagos sharks, tiger sharks, blue sharks, whale sharks, dolphins on their oceanic migrations. The Island is also a home to green and hawksbill sea turtles, who find refuge in the coral reef. Underwater explorer Jacques-Yves Cousteau dived at the Island and called it “the most beautiful island in the world.” 

Cocos Island. Photo by Joanna Nasar, SeaTurtles.Org.
Cocos Island. Photo by Joanna Nasar, SeaTurtles.Org.

Yet, sadly this blue gem is under attack by illegal longline fishing vessels that enter into the marine protected zone that extends around the Island in search of tuna, sharks and Mahi mahi.

Longline fishing is a deadly type of fishing that consists of setting a main line with hundreds or thousands of baited hooks and then indiscriminately catching, harming or killing whatever swims into the line.

This practice is draining the seas of endangered marine wildlife. Air breathing endangered sea turtles that swim into the lines will often drown as they are unable to come up for air, while sharks that must swim to force water to the gills are also unable to stay alive when caught.

Furthermore longlining inside the protected marine reserve, national park and UNESCO World Heritage site around the Island is especial egregious as it puts vulnerable and endangered marine wildlife populations in extreme danger, and leaves the zone littered with fishing gear.

Longline gear re-purposed into a bridge by park rangers. Photo by
Longline gear re-purposed into a bridge by park rangers. Photo by Marc Merlin.

The innovative partnership between Tomnod and Turtle Island Restoration Network aims to protect the Island’s marine biodiversity by using crowd sourcing to catch vessels fishing within the preserve illegally.

That’s where you come in!

No matter where you live, you can help us look for illegal fishing boats by visiting http://www.tomnod.com/ and searching for boats in the ocean.

Join us in our efforts to end illegal fishing, protect endangered sharks and sea turtles, and pioneer a new way to protect our seas by visiting http://www.tomnod.com/.


  1. Jaxon
    January 18, 11:58 am


  2. F Gunter
    August 23, 2015, 9:54 pm

    This is needed for illegal logging

  3. F Gunter
    August 23, 2015, 9:52 pm

    The Amazon needs this for illegal logging

  4. Kenlyn Moore
    August 19, 2015, 4:32 pm

    A worth while project … going to check it out and give it a try.