Piranhas' secret is out: They're wimps!

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I doubt this will change any laws any time soon.

http://www.msnbc.msn.com/id/19569845/?GT1=10150

Piranhas' secret is out: They're wimps!
Rather than vicious killers, sharp-toothed fish are omnivorous scavengers

LONDON - Despite their fearsome reputation, piranhas are wimps that gather in large shoals to protect themselves from predators, scientists said on Monday.

Rather than aggressive killers, research shows piranhas are omnivorous scavengers, eating mainly fish, plants and insects, Anne Magurran of Scotland’s University of St Andrews said.

“Previously it was thought piranhas shoaled as it enabled them to form a cooperative hunting group. However, we have found that it is primarily a defensive behavior,” she said.

Piranhas face constant attack from predators including river dolphins, caiman — a relative of the crocodile — and bigger fish, such as the giant piracucu.

“Their cautious behavior is crucial to avoid being eaten,” Magurran said.

Her work with the Mamiraua Institute in Brazil shows how shoal sizes increase in relation to predation risk, especially when water levels in the Amazon basin are low, giving piranhas less room to escape attack.

The research is featured at the Royal Society’s summer science exhibition in London.
 
interesting. i knew the small ones were little pansys. but i always thought big ones were pretty vicious
 
Now there's a news that seems to contradict it too.

http://news.yahoo.com/s/ap/20070703/ap_on_fe_st/odd_piranha_catch_4

N.C. fisherman reels in a piranha
MOUNT HOLLY, N.C. - A fisherman looking to catch a catfish for dinner instead reeled in a fish that flashed its teeth and bit his knife. Jerry Melton, 46, was fishing in the Catawba River last week when he caught what state wildlife officials later identified as a piranha, a South American carnivorous fish that lives in freshwater.

"When I got it on the bank I didn't really know what it was; I hadn't seen anything like it before," Melton said.

When Melton opened the fish's mouth with a pocketknife, he said the fish bit down and left an impression on the blade.

Wildlife officials told Melton on Saturday that he caught a 1 pound, 4 ounce piranha that was probably dumped in the river. Melton was fishing in Mount Holly, a town northwest of Charlotte.

The catch highlights the growing problem of people keeping exotic animals and fish as pets and later dumping them into local waters, said Paul Barrington, an ichthyologist with the Fort Fisher Aquarium. Earlier this year, another fisherman caught a snakehead fish — also a nonnative fish — in Lake Wylie near Charlotte.

"Releasing nonnative fish in our native waters is highly irresponsible because it could have a very adverse affect on the fish in that ecosystem," Barrington said. "Piranha and the snakehead fish have no predators in our waters."

Jacob Rash, a North Carolina Wildlife Resources biologist, said he believes the piranha was the first caught in the Catawba River and possibly the first in the region.

Melton, who is keeping the piranha in his freezer until he can have it mounted, said the experience will keep him out of the river's water.

"I've been fishing there my whole life," he said. "Catching something like that is definitely going to make me think twice about what's in that water."
 
Lupin;966403; said:
he said the fish bit down and left an impression on the blade.
Now that is some biting force

Lupin;966403; said:
The catch highlights the growing problem of people keeping exotic animals and fish as pets and later dumping them into local waters,... ..., another fisherman caught a snakehead fish

Ohhhhh....another black eye for the hobby.



Nice find on the article btw.
 
Where does this leave the owners who have them just for the rep. If this gets out they'll be ruined.
 
Lupin;966403; said:
Now
The catch highlights the growing problem of people keeping exotic animals and fish as pets and later dumping them into local waters, said Paul Barrington, an ichthyologist with the Fort Fisher Aquarium. Earlier this year, another fisherman caught a snakehead fish — also a nonnative fish — in Lake Wylie near Charlotte.

This makes me so angry :irked: . I dont understand why people dont take more caution when owning these pets.
 
Anyone that has owned on or knows someone that owns one knows they are wimps.

My friend as a shoal for a while.

They had to be the most boring fish ever. The slightest thing sended them scurrying, trying to run for cover, They would hide behind anything they could.

And even when you feed them it wasn't that impressive. They always attacked from behind, and always nibbled the fish to death.
 
johnptc;966509; said:
Piranhas face constant attack from predators including river dolphins, caiman — a relative of the crocodile — and bigger fish, such as the giant piracucu

this rocks !!!!!!!!!!!!!!!!!!!!!!!!!!

15ft piranha eater? :)
 
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