Tuesday, February 25, 2014

Classifying the Global Environmental Problem of Bluefin Tuna

After our class in which we talked about classifying global environmental problems, I was left pondering various examples and which category they would fall into. For whatever reason, bluefin tuna and the species’ race to extinction kept popping into my head.

For those of you that do not know, the bluefin tuna has long been a food staple in the Mediterranean area. Around the 1960s, it rose in popularity in the international market because technological advancement allowed for greater commercial exploitation. Additionally, Japan’s demand for bluefin tuna has skyrocketed due to its delicacy in sushi and sashimi. - a demand so high that a bluefin tuna has been sold at an auction for $1.76 million.

The bluefin tuna is an incredible fish. There are three different types: the Atlantic bluefin tuna, the Pacific bluefin tuna, and the Southern Bluefin tuna. All are in danger. They can grow to weigh over one thousand pounds, swim up to 50mph, and be 6 - 10 feet in length. They are a predatory fish, eating other small fish such as sardines and mackerels. They are also rare in that they are warm-blooded fish.

Since we started widespread tuna-fishing decades ago, scientists have estimated that the Pacific bluefin tuna population has declined by 96.4%. They believe this species could be extinct within a year. One of the biggest problems is that tuna can live up to fifteen years old, but we catch them while we’re young. This means they do not get a chance to grow old enough to reproduce, which somewhat explains why they are diminishing so quickly.

The bluefin tuna is certainly a shared natural resource problem. The existence of them extends across all borders and oceans. In class, we decided a solution to shared natural resource problems is a joint management regime. In 2010, officials from around the world met in Qatar for the United Nations Conference on International Trade in Endangered Species. The United States and the European Union pushed to implement a global ban on the trade of bluefin tuna. However, nations such as Indonesia, Canada and Japan (the largest global consumers of bluefin) rejected this notion. It might be important to note that even if such a ban was implemented, there exists a huge illegal market for bluefin tuna.

The bluefin tuna is also a trans-boundary externality problem. Let’s say Japan allows unlimited bluefin tuna fishing in its waters. Let’s also say, across the ocean, America has banned all bluefin tuna fishing. bluefin tuna is found on both sides of the Atlantic, and can travel from one side to the other in 60 days. They truly are everywhere. If Japan is allowing unlimited fishing, America, along with the rest of the world, will absolutely be impacted by it. To stop the extinction of the bluefin tuna, all countries must be involved for it to truly work.

On top of this, the bluefin tuna is also a global commons problem. They exist and play a role in our world’s precious oceans. They are both a predator and a prey, and the disappearance of them could have huge negative consequences for the ocean ecosystem. Decreasing the biodiversity of the world should always be avoided.

I believe immediate action must be taken in order to prevent the extinction of bluefin tuna. A global environmental regime would be really helpful, because we are up against the strong force of consumer demand as well as domestic economies such as Japans. As we discussed in class, a solution to global commons problems is voluntary restraint, but the chances of this seem extremely small. I cannot help but be pessimistic about this situation. All of the evidence of bluefin tuna’s race to extinction is piling up on the table, but countries such as Japan and Canada do not care. They will continue to fish, farm, and feast on bluefin tuna until they are completely gone.



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4 comments:

  1. Clare,

    Interesting Analysis. Can you expand a bit more on the Tuna as a commons problem? It may be important for the ecosystem (and fishing in general) but why do you think it has the same properties as a grazing area or the atmosphere. Not saying it doesn't, just asking what you think here

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  2. Wow that’s alarming that the Pacific Bluefin population could be extinct in a year! I’m surprised this hasn’t been more prevailing anywhere. I’m interested to look up possible problems that have already arose in the pacific oceans ecosystem. And I think that she meant that each country has the incentive to catch as many tuna as possible for money, even though they know that the population is depleting. Also if there is a global environmental regime, there will still be illegal fishing until the cost of fishing is greater than the few tuna people catch.

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  3. Professor Shirk,
    I'm very sorry, I thought I would get a notification if anyone commented on my post so I have not seen this until now. I won't let this happen again.

    The bluefin tuna is special in that it can be found in almost every ocean in the world besides for the polar region. Not only this, but the eastern and western bluefins that were once thought to stay on their separate sides of the ocean have now been found to mix all over the ocean - everywhere except their spawning grounds! (Source: National Geographic, "Quicksilver," March 2014). If the bluefin tuna were to suddenly disappear, there would be huge gap in the predators of smaller fish such as mackerel and sardines, which eat even smaller fish and plankton, which eat phytoplankton and algae, etc. If there were to be a super-abundance of these foraging fish, the consequences could be huge! Of course we do not know exactly what would happen, but I believe an ecosystem as fragile and important as the oceans is definitely a global commons problem. I also think it is a global commons problem in the perspective of the Tragedy of the Commons, where all countries play a role and the fishing activities of one country directly influence the environment of another's.

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