Bluefin Tuna

Radioactive bluefin tuna crossed the Pacific to US

Tue, 29 May 2012 07:48:50 -0700 Bluefin tuna. (Photo courtesy ABC News) Copyright 2012 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Tuna in US found with Japan quake radiation: study

Tue, 29 May 2012 06:33:51 -0700 Bluefin tuna caught off the US coast have been found to contain radioactive material from Japan's quake-struck Fukushima nuclear plant, according to a new study.

Radioactive bluefin tuna crossed Pacific to U.S.

Mon, 28 May 2012 13:40:41 -0700 Bluefin tuna carried radioactive contamination that leaked from Japan's crippled nuclear plant to U.S.shores

Radioactive Bluefin Tuna: Japan Nuclear Plant Contaminated Fish …

LOS ANGELES — Across the vast Pacific, the mighty bluefin tuna carried radioactive contamination that leaked from Japan's crippled nuclear plant to the shores of the United States 6000 miles away the first time a huge …

Radioactive bluefin tuna from Japan found in U.S. waters | The Raw …

For the first time, scientists have discovered that tuna contaminated by last year's radiation leak from the crippled Fukushima nuclear plant have crossed the Pacific Ocean into U.S. waters, according to the Associated Press.

US Bluefin tuna record Fukushima radiation

Apparently Pacific Bluefin tuna in the U.S.A. is showing radioactive signals from Fukushima, but they say it is "safe to eat".

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11 Responses to Bluefin Tuna

  • Anonymous says:

    Does Anyone Know How Well Undersized Bluefin Tuna Survive After Being Warn Out, Harpooned And Gaffed?
    maybe they should shorten the season and anything large enough to be harpooned can be kept.
    Or give out fewer licences, or outlaw harpooning and figure another way of getting the fish onboard.
    Yes I was referring to the new Tuna TV show called “Wicked Tuna”. If a tuna is close to the limit size to get it on board to measure it all of the boat crews HARPOON the fish when it is near the boat. Since the Bluefin Tuna population is a small percentage of what it one was, that implies that a good percentage of them are caught including the small ones which I assume you can clip the leader and the hook will disintegrate quickly (hopefully).

    Isn’t it logical to assume that a good percentage of Tuna that are almost legal size are caught, which are harpooned, gaffed etc..?

    • Curator says:

      I assume this is a reaction to commercial tuna fishermen who have a numerical limit on what they can sell, and as a result “discard” smaller fish. A gaff is the easiest way to get a large fish on board. Any fish which is gaffed is one which is not going to survive if released.

      A problem in fisheries management has always been “bycatch” — that is, fish (or other creatures) which are killed, but for one reason or another, are discarded at sea rather than being taken to the dock to be sold (or even counted). Bycatch can sometimes make up more than half of a commercial fisherman’s catch. (Some bycatch is of fish which are illegal to sell (protected or undersized), some is of fish which simply is unsellable (tastes like crap), and some, like the smaller bluefin, just is not as valuable as what they might catch.)

      Sport fishermen generally practice good catch and release — if they’re going to release a fish, they don’t mutilate it with a gaff or dump it on the deck of the boat. That is, by and large, they obey both the spirit and letter of the law. Commercial fishermen are in it for the money, so the waste of fish doesn’t bother them much. They just “dispose” of unwanted fish the easiest way they know of, which often isn’t too good for the fish.

      So yes, better laws might help, but as long as you have fishermen who value the money more than the health of the resource, you’re going to have a problem.

    • Curator says:


      there are too many variables
      You need to know the rate of hunting tuna as well as the rate of tuna reproducing. Then you have to take into account other factors, such as disease among bluefin tuna, or the ability to have tuna farms in which tuna can be raised as livestock. These last two are the variables that will make it very uncertain to tell the fate of the Bluefoi tuna

  • Anonymous says:

    Can I Have A Blue Fin Tuna As A Pet ? In 1859, a man by the name of Charles Bixby went ship wrecked in the Pacific Ocean, he was then saved by a Blue Fin Tuna who brought him to shore. They developed a life long friendship and soon many others befriended the fish. SADLY, in 1900, a japanesse man named Yao Min Hung, ate his friend the tuna, and soon others did aswell. The BlueFin is endangered. I want the adopt one and keep it in the bay by my house, I would also want to breed them. I will fence the bay so they will be safe. Is it legal to have one as a pet?

  • Nicolartay says:

    How To Calculate Fish Reproduction Numbers? Im writing a report about Bluefin Tuna, which are endangered, and want to write about how long it would take for stocks to return to non-endangered levels if all fishing of them stopped. I have information such as their size, their predators, what age they spawn etc but need a formula (or something) to work it out.

    Does anyone know how to calculate this? Thank you 🙂

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