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2. Marine conservation - Wikipedia

   en.wikipedia.org/wiki/Marine_conservation

   The Pacific bluefin tuna is targeted by the fishing industry mainly for its use in sushi. [39] A stock assessment released in 2013 by the International Scientific Committee for Tuna and Tuna-Like Species in the North Pacific Ocean (ISC) shows that the Pacific bluefin tuna population dropped by 96 percent in the Pacific Ocean.

3. Southern bluefin tuna - Wikipedia

   en.wikipedia.org/wiki/Southern_bluefin_tuna

   Therefore, if they stop swimming, tunas suffocate due to a lack of water flow over the gills. [6] The oxygen need and oxygen uptake of the southern bluefin tuna are directly related. As the tuna increases its metabolic need by swimming faster, water flows into the mouth and over the gills more quickly, increasing the oxygen uptake. [8]

4. Dead zone (ecology) - Wikipedia

   en.wikipedia.org/wiki/Dead_zone_(ecology)

   In 2009, one scientist described "thousands and thousands" of suffocated, crabs, worms, and sea stars along the seafloor of the hypoxic zone. [57] In 2021, 1.9 million dollars were put into monitoring and continuing to study the hypoxic conditions in the area that the dead zone occurs in. [ 56 ]

5. Pacific bluefin tuna - Wikipedia

   en.wikipedia.org/wiki/Pacific_bluefin_tuna

   Winning these new year auctions is often used as a way to get publicity, which raises the prices considerably higher than their usual market value: on 5 January 2013, a 489-pound (222 kg) Pacific bluefin tuna caught off northeastern Japan was sold in the first auction of the year at the Tsukiji fish market in Tokyo for a record 155.4 million ...

6. After 4-hour fight, 2 fishermen land 718-pound giant bluefin ...

   www.aol.com/4-hour-fight-2-fishermen-203610146.html

   After a four-hour fight and a close call with a tug boat Capt. Kevin Goldberg of the Marener sportfishing boat, along with Mike Resetar, landed a 718-pound giant bluefin tuna.

7. Activists want tinned tuna banned after toxic levels of ...

   www.aol.com/ban-tinned-tuna-schools-hospitals...

   Tuna accumulate more mercury over time because they are high up the food chain, eating smaller fish frequently. But the canning process means that mercury concentration is doubled or tripled ...

8. Marine Protection, Research, and Sanctuaries Act of 1972

   en.wikipedia.org/wiki/Marine_Protection...

   During this convention, more than 85 countries agreed in the prohibition of dumping in the ocean the next elements: mercury, cadmium and other substances such as DDT and PCBs, solid wastes and persistent plastics, oil, high-level radioactive wastes, and chemical and biological warfare agents; and requires special permits for other heavy metals ...

9. No time to lose on ocean treaty as threats to high seas rise ...

   www.aol.com/news/no-time-lose-ocean-treaty...

   Governments have no time to lose when it comes to implementing a new global ocean treaty to protect the high seas as threats from human activities intensify, a report by environmental group ...