Rio de Janeiro buying coke

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Rio de Janeiro buying coke

The concentration of the drug was up to times higher than previously observed in other marine life. A study from the Oswaldo Cruz Foundation found high levels of the drug in the tissue of these wild marine animals. Researchers tested 13 Brazilian sharpnose sharks caught in the waters around Rio de Janeiro which they bought from fishers between September and August This species, listed as vulnerable by IUCN, was selected for testing as its habitat close to the coast means it is exposed to contaminated discharges. Scientists believe Brazilian sharpnose sharks could be a sentinel species for this type of pollution. All of the sharks tested positive for cocaine, with the drug and its main metabolite benzoylecgonine found in the muscle tissue and livers of the animals. The study, published in the journal Science of the Total Environment, is the first to find cocaine in wild sharks. Not many packages of the drug are discarded or dumped in this area according to the researchers. But drainage from the illegal labs where cocaine is manufactured and the urine or faeces of drug users are prominent sources of pollution in the water. Wastewater treatment plants around the world are not very good at removing these substances from the water and this means they end up washing down into the ocean. Regardless of where exactly it came from, cocaine only persists for a short while in the environment meaning for researchers to find it in animals like this, a lot of the drug has to be entering the ocean. Researchers have previously found high levels of cocaine pollution in rivers around Rio de Janeiro. Most significantly, they believe it may have an impact on their eyesight which could cause them issues when hunting. Inefficient hunting may shorten the lifespan of the sharks. All female sharks in the study were pregnant but it is unclear how cocaine exposure could impact their foetuses. Aside from the impact on the animals themselves, the sharpnose shark is a common part of the Brazilian diet. Scientists say more research is needed to assess the impact that cocaine residue could have on the people who eat them. By Rosie Frost. Share this article Comments. Share this article. You might also like Now playing Next. Now playing Next.

I Buy Drugs in the Favelas for Rio’s Middle Classes

Rio de Janeiro buying coke

Sharks off the coast of Brazil have tested positive for cocaine, scientists say. Marine biologists tested 13 Brazilian sharpnose sharks taken from the shores near Rio de Janeiro and found they tested for high levels of cocaine in their muscles and livers. The concentrations were as much as times higher than previously reported for other aquatic creatures. The research, carried out by the Oswaldo Cruz Foundation, is the first to find the presence of cocaine in sharks. Experts believe the cocaine is making its way into the waters via illegal labs where the drug is manufactured or through excrement of drug users. Packs of cocaine lost or dumped by traffickers at sea could also be a source, though this is less likely, researchers say. All females in the study were pregnant, but the consequences of cocaine exposure for the foetuses are unknown, experts say. Further research is required to ascertain whether cocaine is changing the behaviour of the sharks. However, previous research has shown that drugs were likely to have similar effects on animals as they do on humans. Last year, chemical compounds including benzoylecgonine, which is produced by the liver after cocaine use, were found in seawater samples collected off the south coast of England. Skip to content. US Election. Sharks off Brazil coast test positive for cocaine. Getty Images. The Brazilian sharpnose shark is related to the Atlantic sharpnose file photo from Drugs, pesticides and medicine found in seawater. Drug use. Drugs trade.

Rio de Janeiro buying coke