Can you be arrested for eating ”narcotic seafood”? Narcotic substances found in ”sharks” in Brazil

A shark caught in the waters off Brazil tested positive for cocaine. On the 23rd (local time) according to the British BBC, the Brazilian national organization "Oswaldo Cruz Foundation" announced in a press release that it had detected the presence of cocaine in a shark.
"After testing 13 sharks caught in the waters off the coast of Nero, we found large amounts of cocaine in their muscles and livers," the agency said. It also said the levels of cocaine detected this time were the highest in any previously reported study.
The levels were 100 times higher than those found in other seafood. Experts said, "It's possible that cocaine has leaked into the ocean from illegal drug manufacturing laboratories or through the waste of drug users."
I believe that.