I read those, still no attributation and one glaring error, I know of no piranha capable of taking a 6" chunk of flesh in one bite.
"And their powerful jaws can devour 6in (15.24cm) of flesh with every bite."
Here are the original AP wire reports,
September 20, 1981 World News 300 DIE AS AMAZON BOAT SINKS
AP
An Amazon riverboat sank in the northern jungle port of Obidos today and port officials said that more than 300 people were missing and feared drowned. Capt. Elio Palhares said in a telephone interview that 178 of the 500 people thought to have been aboard had swum to safety or been saved.
September 20, 1981 World News Brazilians Find 10 Bodies In Amazon Boat Wreck
UPI
Only 10 bodies have been recovered so far in a search for 300 people missing here in yesterday's sinking of an overloaded Amazon riverboat. A team of 15 divers went into the water to break into cabins and clear cargo to reach passengers who drowned in the holds.
September 21, 1981 World News "
a follow up from UPI,
"Rescue workers found 100 more bodies inside a capsized Amazon River steamer today, raising the death toll to at least 230. The overcrowded 80-foot river boat Novo Amapo sank Tuesday in treacherous currents just off Belem de Cajari, a hamlet 100 miles upriver from the boat's destination of Macapa on the Amazon delta.
January 10, 1981 World News
MORE ON SHIPS AND SHIPPING AND: ACCIDENTS AND SAFETY, DROWNINGS, BRAZIL"
I think I go with these rather than the Guardian or papers quoting the Guardian.
This is the cover sheet of a report written for the Brazilian government in 2001-2002,
"Piranha Attacks on Humans in Southeast Brazil: Epidemiology, Natural History, and Clinical Treatment, With Description of a Bite Outbreak
Vidal Haddad, Jr, MD, PhD; Ivan Sazima, PhD, BSc
From the Department of Dermatology, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, São Paulo, Brazil (Dr Haddad), and the Department of Zoology and Natural History Museum, Universidade Estadual de Campinas, São Paulo, Brazil (Dr Sazima)
There are many tales describing ferocious schools of piranha attacking humans, but there are few scientific data supporting such behavior. The very few documented instances of humans attacked and eaten by piranha schools include 3 that occurred after death by other causes (eg, heart failure and drowning). These predaceous fishes, however, do occasionally injure bathers and swimmers in lakes and rivers. The characteristic profile of most injuries is a single bite per victim, generally related to the fish defending its brood. This paper describes an outbreak of piranha bites in a dammed river portion in southeast Brazil. The outbreak was caused by the speckled piranha, Serrasalmus spilopleura, a widespread species which benefits from the growing tendency of damming rivers all over Brazil. This article focuses on the epidemiological and clinical aspects of the injuries, as well as on piranha biology, to gain a better understanding of the natural history of bite outbreaks."
here is the link for the full text.
http://www.wemjournal.org/wmsonline...&issn=1080-6032&volume=014&issue=04&page=0249
There are a lot of things written all over the net that simply aren't true, I'm pretty sure this is one of them.