Foto de stock - Blue shark, Prionace glauca, close to surface. Blue sharks are found off the coasts of every continent, except Antarctica. It is estimated that 10 to 20 million of these sharks are killed each year as a result of fishing. The meat is edible, but not widely sought after; it is consumed fresh, dried, smoked and salted and diverted for fishmeal. There is a report of high concentration of heavy metals (mercury and lead) in the edible flesh. The skin is used for leather, the fins for shark-fin soup and the liver for oil. Blue sharks are occasionally sought as game fish for their beauty and speed. Blue sharks rarely bite humans. Copy space. Azores, Portugal