Are there piranhas lurking in North Texas lakes? (2024)

By Francesca D’Annunzio

3:51 PM on Sep 15, 2021 CDT — Updated at 9:49 AM on Jun 22, 2022 CDT

Rumor has it that there are piranhas lurking in Lavon Lake and other North Texas waters.

Is this chatter in a Princeton community Facebook group fact or fiction? The Dallas Morning News went fishing for answers.

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Piranhas fall into the myth more than reality category. According to experts, there is not an established population of piranhas in Lavon Lake. In fact, the United States Geological Survey only shows two documented piranha sightings in Texas with one taking place near Houston and the other near San Antonio.

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So how did the piranhas get there? Irresponsible pet owners likely dumped their aquarium in public waters, according to Monica McGarrity, senior scientist for Aquatic Invasive Species at Texas Parks and Wildlife Department.

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Even if they were introduced, it’s unlikely that piranhas could form an established population in a North Texas lake in the future, she said. Aquarium dumpers usually only dispose of one fish, which needs a counterpart with which to mate.

“These are tropical fish and so temperatures may get too cold and they may not survive the winter,” she added.

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But if piranhas have never been documented in North Texas, what did residents see in Lavon Lake?

Park ranger Stephen Perrin of the U.S. Army Corps of Engineers said it was likely a pacu — a relative of the piranha.

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Like piranhas, pacus are originally from the Amazon river basin in South America and the two fish look similar when they are young.

When the fish age, they can look quite different. Some subspecies of pacu can live for around two decades and weigh more than 60 pounds upon reaching maturity, according to the Smithsonian National Zoo and Biological Institute.

The folklore about the scary, razor-toothed piranha doesn’t accurately describe a pacu. Pacus have duller teeth that resemble those of humans more than piranhas.

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Are there piranhas lurking in North Texas lakes? (1)

There have been 27 reports of pacu sightings in Texas since the 1980s, according to the USGS database. Similar to piranhas, these pacus were likely dumped into the lake by former pet fish owners, Perrin said.

Pacus have been sighted and documented a few times in North Texas waters: Lavon Lake in 1987, Lake Texoma in Grayson County in 2003, Eagle Mountain Lake near Fort Worth in 2000 and Ray Perry Lake in Tarrant County in 2007, according to USGS data.

These sightings are infrequent and don’t indicate a widespread threat to human or environmental health at this time, McGarrity said. Perrin said he’s only seen one in his ten years with the corps.

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Pacus generally do not harm people, McGarrity said, but swimmers and boaters who encounter the fish should still be cautious.

“They can deliver a nasty bite. … Handling those fish could pose something of a risk to humans,” she said.

But if you see a pacu, or piranha, make sure to report it because if it was able to establish itself in Texas it could become the state’s next invasive species, according to Texasinvasives.org, a partnership between state and federal agencies, conservation organizations, academia and other private and public stakeholders who work to protect Texas from invasive species.

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Are there piranhas lurking in North Texas lakes? (2)

Francesca D’Annunzio, Special Contributor. Francesca D'Annunzio is a journalist from Texas. Her work has appeared in various publications, including The Guardian, The Dallas Morning News, and The Arizona Mirror, among others.

artslife@dallasnews.com

Are there piranhas lurking in North Texas lakes? (2024)

FAQs

Are there piranhas lurking in North Texas lakes? ›

Piranhas fall into the myth more than reality category. According to experts, there is not an established population of piranhas in Lavon Lake. In fact, the United States Geological Survey only shows two documented piranha sightings in Texas with one taking place near Houston and the other near San Antonio.

What lakes have piranhas? ›

Piranhas are not currently found in California or elsewhere in the United States.

Are piranhas banned in Texas? ›

Texas law prohibits sale and possession of live piranhas and other dangerous or potentially dangerous fish, but many states do not.

What waters do piranhas live in? ›

Today, piranhas inhabit the freshwaters of South America from the Orinoco River Basin in Venezuela up to the Paraná River in Argentina. Though estimates vary, around 30 species inhabit the lakes and rivers of South America today.

What freshwater fish look like piranhas? ›

Pacu (Colossoma macropomum) are South American freshwater fish that are related to piranha with a few big differences: pacu are vegetarians, and their teeth look startlingly like human teeth! There are several species of fish commonly referred to as pacu.

Are there piranhas in Texas lakes? ›

Piranhas fall into the myth more than reality category. According to experts, there is not an established population of piranhas in Lavon Lake. In fact, the United States Geological Survey only shows two documented piranha sightings in Texas with one taking place near Houston and the other near San Antonio.

What states have piranhas? ›

Piranhas are not currently found in California or elsewhere in the United States.

Is it safe to swim around piranhas? ›

It is true that many humans have lost a finger or toe to piranhas, but death is highly unlikely, despite many people swimming in piranha-infested waters in South America on a regular basis.

How bad can piranhas hurt you? ›

In summary, while piranhas are carnivorous and can deliver painful bites, they are not inherently bloodthirsty creatures seeking out human prey. Piranha attacks on humans are infrequent and usually involve minor injuries. Check out what creatures are on display at SEA Life Manchester.

Have piranhas killed someone? ›

In January 2015, a six-year-old girl was found dead with signs of piranha bites on part of her body after her family canoe capsized during a vacation in Monte Alegre, Brazil. Whereas fatal attacks on humans are rare, piranhas will readily feed on bodies of people that already have died, such as drowning victims.

How many people have died from piranhas? ›

Nevertheless, attacks do occur and have been known to be deadly. In 2022, four people were killed in three separate attacks by piranhas in Paraguay. Even so, the fish's reputation has over the decades grown fiercer than its bite, fed by tall tales.

How fast can a piranha eat a cow? ›

These feisty South American fish are notorious for their sharp teeth, fierce demeanor, and outsized appetites, which allegedly can compel a group of piranhas to skeletonize a cow in minutes.

What animal eats piranhas? ›

Piranhas' natural predators include crocodiles, Amazon river dolphins (botos), and herons. With the decline of these predators, piranha populations are increasing in certain rivers. Humans also hunt piranhas for their meat and for the pet trade.

What fish is mistaken for a piranha? ›

It's called a pacu,” Foy said. Foy said pacus are often mistaken for piranhas because they both have teeth. But a big difference is that piranhas have sharp teeth, and pacus have human-like teeth.

What rivers have piranhas? ›

Today, piranhas inhabit the freshwaters of South America from the Orinoco River Basin in Venezuela up to the Paraná River in Argentina.

Can piranhas go in salt water? ›

Piranha (Pygocentrus oceanus). Piranhas are an omnivorous species usually found in South American rivers but through a recent marine census a salt water species was found inhabiting tropical waters off the coast of Australia.

Are piranhas in Minnesota? ›

Fish Dumping Gone Wrong

Ornamental or pet trade fish that have been found in Minnesota waters include goldfish, koi, pacu, and piranha.

Are piranhas aggressive to humans? ›

Piranhas have an aggressive image as flesh-eaters, able to dilacerate a human body in seconds. While piranhas do occasionally attack humans, this is only usually when water levels are low and there has never been an official recorded death due to piranha attack.

Do they have piranhas in Louisiana? ›

The Louisiana Department of Wildlife and Fisheries (LDWF) has verified that a single Red Piranha was caught earlier this week in University Lakes in Baton Rouge. Red Piranha, also known as Red-bellied Piranha, are native to South America and found in the Amazon Basin.

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