Passport to Texas

Blue tilapia

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This is Passport to Texas

When you hear the word tilapia, you may think of a savory meal with lemon butter sauce, but you probably don’t think of the term “invasive species.”

Tilapia are great to eat. They’re raised as a food fish, and they’re quite tasty. They’re quite popular in restaurants. But the problem is when they’re in our natural waters they are upsetting the ecosystem.

Originally established in fish farms as a food source, Tilapia eventually found their way into Texas waters.

Gary Garrett, a former Texas Parks and Wildlife fisheries biologist, says tilapia pose a threat to large mouth bass and other native species.

They build big pit nests and in doing that they stir up a lot of the sediment. And it’s been shown, for example, with large mouth bass, all that sediment stirred up and settling back down will often kill largemouth bass eggs.

And because of the delicate nature of the food chair, this behavior has the potential of damaging the entire ecosystem.

TPW has regulations for tilapia, but because they’re widespread statewide, they are difficult to control. But if you like to fish, Garrett says, there’s one way you can help.

Don’t throw them back. If you catch them, keep them.

So, next time you reel in tilapia, turn on the grill and get cooking.

The Sport Fish Restoration Program supports our series.

For Texas Parks and Wildlife…I’m Cecilia Nasti

Examining marine life in sein net.

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This is Passport to Texas

We call searching the Internet surfing. But, we call searching a net that’s been in the surf, seining.

Seining is dragging a long net through the water, catching small fish and aquatic animals.

Hans Haglund is superintendent at Galveston Island State Park. He says the bay waters are teaming with all kind of life. And he’s taken more than a few visitors seining in Galveston Bay.

We do it to help educate about the bay, the wetlands, the environment out here; to show people how important they are, how productive they are, what these areas do for us, why we might need to protect them and look out for them.

Abundant, healthy wetlands can help to mitigate potential flood damage, as well as serve as nurseries for marine life. Haglund describes visitor reactions to what they catch in their seine nets.

Oh, I never know that was out there, and I never knew you could get so much in a little area. Even people that have been using the bay a lot – a lot of fishermen – don’t realize how productive these areas are.

Some of the more unusual fish Haglund says they see include the pipe fish and lizard fish.

Summer’s here, and Galveston Island State Park offers a great coastal getaway. Learn more at texasstateparks.org.

The Sport Fish Restoration Program supports our series…and works to increase fishing and boating opportunities in Texas.

For Texas Parks and Wildlife…I’m Cecilia Nasti.

Aquarium in TV. Image: Furnish Burnish

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This is Passport to Texas

How far would you travel to ensure the future of your favorite exotic aquarium fish?

We had some folks telling us that they would go as far as 50 miles to find an appropriate body of water.

Releasing pet fish into Texas waters when you no longer want them, is not a humane act. Exotic aquaria species disrupt natural ecosystems.

When we spoke, Priscilla Weeks was a research scientist at the Houston Advanced Research Center. At the time, her team used a TPWD grant to research why people release their fish into Texas waters.

I think there might be a stereotype where folks think that it is easy, emotionally, just to release a fish. But actually what we’re finding is folks are very attached to their pets.

According to research, whether a person gives up their fish depends on personal preference like its behavior or physical attributes.

And what we’re finding is that different individuals prefer different attributes of a fish. So, it’s not necessarily that it grows too big in my tank, because I may like a big fish.

If those attributes change, sometimes so does the owners’ interest in the animal.

Releasing a fish is not the only option when you no longer want it. Weeks says you can euthanize it, but less drastic is taking it back to the pet store.

The Sport fish restoration program supports our series.

For Texas Parks and Wildlife, I’m Cecilia Nasti.

What happens when well meaning citizens release the “sucker fish” (Plecostomus) from their aquarium into the wild?…they grow and multiply! Picture from Lake Dunlap, TX.

Don't Dump Your Fish Tank in Texas Waters Play Now | Play in Popup | Download

This is Passport to Texas

Remember this?

He’s gonna get out of here. He’s going to get flushed. What a smart little guy!

We love how in the Pixar animation, Finding Nemo, the aquarium fish escape into the wild. The problem is most fish in Texas aquariums aren’t from here.

Luci Cook-Hildreth is a fisheries biologist, formerly with Texas Parks and Wildlife’s Inland Fisheries Division.

Even really smart people sometimes don’t understand that a fish is not just a fish and water is not just water. They go, “I have a creek in my backyard, and I have a fish that’s too big for my tank. Well, why don’t I just set him free?” And they don’t understand that there’s a lot of biological and ecological ramifications to that decision.

When these fish thrive in Texas waters, they out-compete native fish populations.

Moreover, it’s nearly impossible to control what species of fish people own because of the Internet. Despite state laws, there seems to be a constant supply—and demand—for illegal species. For good reason.

Folks that are interested in selling illegal fish have the potential to make thousands of dollars on these fish. And we can slap a fine on them, for 200 or 300 dollars, and it’s really just the cost of doing business for these folks.

Releasing one fish into the wild might endanger many more.

The Sport Fish Restoration Program supports our series.

For Texas Parks and Wildlife, I’m Cecilia Nasti.

Texas Freshwater Fishing Hall of Fame 2017 Honoree: Gulf States Toyota.

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This is Passport to Texas

The Texas Freshwater Fishing Hall of Fame honors individuals and organizations for their contributions to the sport. Gulf States Toyota is one such inductee.

Gulf States Toyota joined with Texas Parks and Wildlife Department in a private-public partnership to create the Toyota Texas Bass Classic, and also with the Toyota ShareLunker program.

Dave Terre, Texas Parks and Wildlife chief of fish management and research, says Gulf States Toyota, has been a boon to bass fishing…and not just in Texas.

The Toyota Texas bass Classic has been huge for Texas Parks and Wildlife. It’s provided us an opportunity to engage millions of people into fishing—all across Texas, and really across the United States of America.

The Guld State’s support helped double the neighborhood fishin’ lakes in Texas, thus making fishing accessible to more families in the urban core. And its long-term involvement in the ShareLunker program, is legend.

Gulf States Toyota supported the Sharelunker program since 2009. It’s really putting us on a path to create cutting edge science. It’s allowed us to be able to track these fish through DNA.

Gulf States Toyota is in the spotlight next week on the Texas Parks and Wildlife TV series on PBS. Check your local listings.

For Texas Parks and Wildlife…I’m Cecilia Nasti.