Piranha in foreign waters

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I am pretty sure American Alligators would probably munch on the piranhas just like their cousins the caiman.


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Along with largemouth bass and peacock bass (a known predator of piranha in the native range)...not mentioned to larger catfish. The piranha' body design is very similar to their natural prey aka the sunfish.

yes, that can happen. But in some places in some countries, piranha will survive and terrorize the waters. Cat fish and some other fish are just easy preys for a shoal of piranhas. RBP will survive because they also have a group protection.
 
then why US authorities banned keeping piranhas in warmer states ? :P
there are many countries where the government prohibited keeping piranhas in captivity except zoo parks.

Maybe in US, RBP is very common, but where I live, we have to pay premium price for RBP. They are not common here. And I heard once, in Thailand, a person paid $200 for a 3 " RBP and he said it is cheaper.

people just release few piranhas to rivers and most probably it won't make a difference. But if people release large number of piranha population to a river, that will be a threat for sure. By "large amount" I mean thousands and that can be happen only with RBP.
Just because the piranhas are banned in southern U.S, doesn't mean it won't stop people released the piranhas in the waters or to own them. Piranhas are still being sold in the states where the piranhas are illegal.

I doubt that someone would dumping a large number of piranhas (regardless of what species) in the waters....you gotta to find thousands of piranhas to dump them in the rivers first.
 
yes, that can happen. But in some places in some countries, piranha will survive and terrorize the waters. Cat fish and some other fish are just easy preys for a shoal of piranhas. RBP will survive because they also have a group protection.
I guess that you don't bother to do research on the piranhas' natural predators in their native range.
 
Just because the piranhas are banned in southern U.S, doesn't mean it won't stop people released the piranhas in the waters or to own them. Piranhas are still being sold in the states where the piranhas are illegal.

I doubt that someone would dumping a large number of piranhas (regardless of what species) in the waters....you gotta to find thousands of piranhas to dump them in the rivers first.

someone may release thousands of rbp fry to the local rivers because of many reasons.

1. They like to do it - villain mode
2. they have no place to keep the fry and no where to sell
3. out of hobby and want to get rid of them soon
4. going abroad/far away city for a long time and no time to sell/no time to find a suitable fish keeper to give
 
then why US authorities banned keeping piranhas in warmer states ? :P
there are many countries where the government prohibited keeping piranhas in captivity except zoo parks.

Maybe in US, RBP is very common, but where I live, we have to pay premium price for RBP. They are not common here. And I heard once, in Thailand, a person paid $200 for a 3 " RBP and he said it is cheaper.

people just release few piranhas to rivers and most probably it won't make a difference. But if people release large number of piranha population to a river, that will be a threat for sure. By "large amount" I mean thousands and that can be happen only with RBP.

simply because they can carry pathogens. that's why they ban many species that cAn survive in the water.


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i'm sure Wildlife officials do not want piranhas in the southern united states because the possible threat (or more how they would cause such a large psychological fear for local residents) they face to humans. i'm sure they aren't scared of them reproducing here either
 
i'm sure Wildlife officials do not want piranhas in the southern united states because the possible threat (or more how they would cause such a large psychological fear for local residents) they face to humans. i'm sure they aren't scared of them reproducing here either

according to the documentary I watched, wildlife officials are scared of piranha reproducing in warm waters in US. But what you said also make some sense.
 
Your arguments are on par with someone in the fifth grade. I don't see how your comparison works anyway. All I get from this is that based on some hair-brained ideas you think pygos (although I'm sure you mean rbp specifically) would make a better invasive species. Its also pretty cute that they "Adapted to a survived" your poor quality water in "less than an hour." It is clear that you have a fundamental misunderstanding of the word adapt, and I'm certainly glad that your water isn't so bad that it killed your fish before their first hour in your care. On that note, I keep both, and they're both some of my favorite fish.

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according to the documentary I watched, wildlife officials are scared of piranha reproducing in warm waters in US. But what you said also make some sense.
i guess anyone who posted on this doesn't makes any sense at all to you
 
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