Outbreak Of Infectious Salmon Anaemia Virus Killing Millions Of Farmed Chilean Fish - NYT

[hatrack]

PUERTO MONTT, Chile — Looking out over the low green mountains jutting through miles of placid waterways here in southern Chile, it is hard to imagine that anything could be amiss. But beneath the rows of neatly laid netting around the fish farms just off the shore, the salmon are dying.

A virus called infectious salmon anemia, or I.S.A., is killing millions of salmon destined for export to Japan, Europe and the United States. The spreading plague has sent shivers through Chile’s third-largest export industry, which has left local people embittered by laying off more than 1,000 workers. It has also opened the companies to fresh charges from biologists and environmentalists who say that the breeding of salmon in crowded underwater pens is contaminating once-pristine waters and producing potentially unhealthy fish.

Some say the industry is raising its fish in ways that court disaster, and producers are coming under new pressure to change their methods to preserve southern Chile’s cobalt blue waters for tourists and other marine life. “All these problems are related to an underlying lack of sanitary controls,” said Dr. Felipe C. Cabello, a professor in the Department of Microbiology and Immunology at New York Medical College in Valhalla that has studied Chile’s fishing industry. “Parasitic infections, viral infections, fungal infections are all disseminated when the fish are stressed and the centers are too close together.”

Industry executives acknowledge some of the problems, but they reject the notion that their practices are unsafe for consumers. American officials also say the new virus is not harmful to humans. But the latest outbreak has occurred after a rash of nonviral illnesses in recent years that the companies acknowledge have led them to use high levels of antibiotics. Researchers say the practice is widespread in the Chilean industry, which is a mix of international and Chilean producers. Some of those antibiotics, they say, are prohibited for use on animals in the United States.

EDIT

http://www.nytimes.com/2008/03/27/world/americas/27salmon.html?_r=1&oref=slogin

[kestrel91316]

1. Somebody needs to buy the fish farmers a CLUE:

“Parasitic infections, viral infections, fungal infections are all disseminated when the fish are stressed and the centers are too close together.”

[opihimoimoi]

2. Success and disasters are all part of the learning curve...Humans need lessons in

building cities to avert sim disasters