Dead Southern bluefin tuna (Thunnus maccoyii) caught in a tuna pen, Port Lincoln, South Australia. (

Bluefin Tuna is the largest tuna and can live up to 40 years. (WWF) As they migrate across the ocean, they are built for speed with their flexible fins. Being at the top of the food chain, they are the top predators from the time they hatch. With their extreme vision, they search for fish such as herring, mackerel, and eels, throughout their lifetime. The Bluefin Tuna splits into 3 different species: Atlantic, Pacific, and the Southern. Out of these three, the Atlantic Bluefin Tuna has the most endangered status. (WWF)

Bluefin tuna located on the top of the food chain.(


The population of Bluefin tuna has been reduced by a dramatic rate where 96% has dropped. (The Guardian) Approximately more than 9 out of 10 of the species that were caught were too young to have reproduced, meaning they may have been the last generation of the bluefin tuna. (The Guardian) Amanda Nickson from the Pew Environment Group has stated that as they are “highly valuable natural commodities”, many restaurants and industries want them since the Bluefin Tuna gives them high returns. Out of these industries, the most predominant fish fleets were stocks from Japan, Mexico, South Korea, and the US.

The Atlantic bluefin is a highly desired product in the fish market in Asia—a single fish has sold for over $3 million. (NYTimes) As they are so desirable, fishermen use even more processed methods to catch tuna, which leads to an instant decline in the population. As they are at the top of the food chain, they are responsible for sustaining the balance in the ocean environment, and with the decline, the entire ecosystem can be disrupted.

Bluefin Tuna getting sold for over $3 million




  • World Wide Fund for Nature
    • Preserves sea resources/ecosystems from industrial activity threats
    • Develops sustainable methods of harvesting tuna to reach adequate stock management
  • Greenpeace
    • Developed a campaign to advocate sustainability
      • Applied pressure on retailers to not obtain tuna products from sustainable sources (ATUNA)
    • Promotes the creation of Marine Protected Areas (MPAs)
  • Oceana
    • Bases its goals on science to create the most concrete and measurable results (ATUNA)
    • Based in the Mediterranean Sea, it focuses on protecting the BlueFin Tunas reproductive cycles


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  1. May 01, 2019 by marinemasterbigkwing

    Hey Ingrid, very well done presentation. I especially like the cover photo of the japanese ojisan. Anyways you project looks well put together and I really enjoyed the energetic video you have about your topic. I could really really feel your passion about eating tuna fish. Overall, very well done!

  2. May 08, 2019 by Michael Bell

    Great presentation Ingrid. I like your focus on the importance of consumer choice. What can we do other than just not buy tuna? Are there some types of tuna that are ok to eat?

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