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Over Fishing Could Drive Some Tuna Species to Extinction
A new study, published in Fisheries Research, reveals that the sheer amount of tuna being taken from our seas, including some species considered "vulnerable," has increased by an astonishing 1,000% in the last 60 years — a rate that some scientists are saying is unsustainable.

The study, which looked only at larger industrial catches, says we're pulling nearly 6 million metric tons of tuna from the oceans each year.  The study also shows that not only are we taking more tuna from the oceans than ever before, but we're also harvesting them farther from shore. Industrial tuna fishing now covers somewhere between 55% and 90% of the global oceans, fueled in part by extensive government subsidies.

 
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Invasive Species Reintroduce Toxic Chemicals to Green Bay Food Web - Although , polychlorinated biphenyls, also known as PCBs, have been buried in the sediments, two invasive species – the quagga mussel and round goby – can allow a group of toxic chemicals deposited more than 45 years ago to reenter the food web, passing them to predatory fish and possibly people.


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