The oil spill in the Gulf of Mexico could have a serious long-term impact on tuna stocks off Atlantic Canada.
The Gulf is the spawning ground for bluefin tuna that migrate to the Atlantic region.
"Many fish are going down to the Gulf to spawn," said Jackie Savitz, a marine biologist with Oceana, an international conservation group based in Washington.
"The larvae of the fish is actually the most sensitive life stage to the toxic effects of oil. And one fish that's spawning right now down there is the bluefin tuna."
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