Archive for the 'Water' Category

Panhandle Playas and the Ogallala Aquifer

Wednesday, August 2nd, 2017
Playas are the most direct route for water to reach the Ogallala Aquifer.

Playas are the most direct route for water to reach the Ogallala Aquifer.

This is Passport to Texas

A playa lake is a natural landscape feature of the vast, flat expanse of the Great Plains and Texas High Plains.

Really, what it is, is a low spot where rainwater collects.

More than a mere low spot, Texas Parks and Wildlife biologist Don Kahl says Texas playas are ephemeral wetlands, and vital recharge points for the Ogallala Aquifer.

They’re really the most direct link between rainwater or rainfall to the Ogallala Aquifer below. The amount of water going into the aquifer is from 10 to 100 times greater in a playa basin as compared to surrounding soils or surrounding upland areas.

Kahl calls playas “self-contained watersheds”, each playa is the center collection point of runoff from surrounding uplands. Most playas only exist for a brief time after it rains. Clay soil lines the bottoms of these shallow basins permitting the rainwater and runoff to collect and slowly filter into the aquifer below.

In combination with a healthy playa, having a grass buffer around it helps to filter out sediments and some of the contaminants running off of neighboring fields. You also get a secondary cleaning with the clay layer in the basin, helping to filter out other contaminants and nitrates as the water passes down into the aquifer.

Recharge rates are slow, and it takes years for rainwater to pass from playas, through soil, and into the aquifer.

The Wildlife and Sportfish Restoration program supports our series and funds diverse conservation projects throughout Texas.

That’s our show for today… For Texas Parks and Wildlife…I’m Cecilia Nasti

Preventing the Spread of Zebra Mussels

Thursday, July 6th, 2017
Places where invasive zebra mussels hitch a ride.

Places where invasive zebra mussels hitch a ride.

This is Passport to Texas

Last month we discovered zebra mussels in Canyon Lake.

Every time you get a new infestation it’s discouraging – it just really is. It just gets you down. And it’s frustrating, because you know that if boaters and people who we know care about the lakes and rivers in this state, if they would just take some time, and be a little careful and make sure that they just clean, drain and dry their boat before they leave the lake every single time, that will go a long time towards preventing their spread.

Fisheries biologist Brian Van Zee says zebra mussels can clog public water intakes, and damage boats and motors left in infested waters.

You know, if boats are stored on the water in the marina, those are the ones where we’re going to have colonies of adult zebra mussels attached to them. Those are the ones that boat owners need to take the time to have that boat fully cleaned and decontaminated; have it inspected by Parks and Wildlife before you go ahead and move it to a different lake.

Once in a river basin, zebra mussels are there to stay.

But, what we can do is we can prevent them from being spread to a new river basin. If we can get the word out to these boat owners and public and transporters in the state, and let them know we’re trying to stop this spread, and prevent new infestations within new river basins – then we have a chance.

Find procedures to clean, drain and dry your boat on the Texas Parks and Wildlife website.

The Wildlife and Sport Fish Restoration program supports our series.

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

TPW TV – Guzzlers for Wildlife

Friday, March 3rd, 2017
Guzzler on the Black Gasp Wildlife Management Area

Guzzler on the Black Gasp Wildlife Management Area

This is Passport to Texas

A guzzler is a rain catchment device. Collected rainwater gets funneled into a tank that feeds a water trough for wildlife.

As we all know, animals need water. Our annual rainfall is only around 11 inches a year. So we’re trying to supplement that water during dry periods.

Travis Smith is a biologist at the Black Gap Wildlife management area in Brewster County. So is Will Rhodes.

We’re in southern Brewster County which is in the Trans-Pecos region of Texas.

They build and maintain guzzlers on the Gap—45 so far—and see to the needs of wildlife on the management area.

We’re in the Chihuahuan Desert Ecosystem. The area is 103,000 acres or a little over. Black Gap is kind of in the middle of nowhere.

Next week the men explain and demonstrate guzzlers on a segment of the Texas Parks and Wildlife TV series on PBS.

So this catchment consist of R-Panel in 12 foot lengths, which is connected to these 6 inch C-Purlins by…

Let’s stop there. Will’s going to tell us about purlins and pitch threads and storage tanks; it’s not sexy stuff. But it’s necessary when building guzzlers at Black Gap. And, so are wildlife cameras.

On these game cameras it’s triggered by motion. Usually that’s going to be wildlife coming in to get water from the guzzlers here.

Which means their efforts are successful. See the segment on Guzzlers next week on the Texas Parks and Wildlife TV Series on PBS. The Wildlife Restoration Program supports our series.

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

TPW TV – Pecos Pupfish

Friday, September 23rd, 2016
Pecos pupfish

Pecos pupfish

This is Passport to Texas

In the unforgiving terrain of Far West Texas lies the Trans Pecos. Much of the aquatic life that’s adapted to survive in the waters of this harsh Chihuahuan Desert Region are found only here.

Because of lack of water and loss of habitat we have a lot of fish in West Texas that are threatened.

Such as the Pecos pupfish. Fisheries biologist, Ken Saunders works in West Texas monitoring the species.

So we have about three miles left of creek left in the whole state of Texas that has the Pecos pupfish in it. So we are going to be taking DNA samples and shortly we’ll be able to know whether we still have that fish here or not.

We join Saunders as he evaluates Pecos Pupfish during an upcoming segment of the Texas Parks and Wildlife TV Series on PBS.

The science we are doing is really important because it gives us an idea of how the population of fish are doing. Are they declining? We wouldn’t know that if we didn’t come out here quarterly, throughout the year to monitor the population.

The Pecos pupfish is just one fish…in one area…of one desert. Why does it deserve our attention?

It’s part of the natural system, and every time we lose part of our natural system we lose part of us. It’s our world, if we don’t take care of it what are we going to have left….

View the segment on the Pecos Pupfish on the Texas Parks and Wildlife TV series on PBS the week of September 25. The Wildlife and Sport Fish Restoration program supports our series.

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

Giant Reed is a Giant Problem in Texas

Monday, May 16th, 2016
Arundo donax, also called Giant Reed.

Arundo donax, also called Giant Reed.

This is Passport to Texas

Texas has its share of invasive plants and animals, including Arundo Donax, or giant reed; you’ve probably seen it along roadways and river banks.

13— If you see it on roadsides, it’s very tall—grows up to about 30 feet. Has segments, really broad, pointed leaves—huge showy plumes. It can actually be quite pretty. And it looks somewhat like corn.

Giant reed is a non-native grass. Monica McGarrity who studies aquatic invasive for Texas Parks and Wildlife, says its greatest impact occurs when it gets into areas along rivers and creeks.

18—They have these impacts because they’re able to outcompete the native plants and push them aside, displace them. And when we’re talking especially about riverside, riparian areas, along our creeks – diversity of native plants is really important to the wildlife, and for maintaining the overall health of the community.

When giant reed displaces native plant communities, the result is reduced habitat quality.

17— It reduces quality for birds and other wildlife. And then it can start to— over time – have impacts on the stream itself, and reduce the habitat that’s available to the aquatic community, and make it more homogenous, more the same throughout. Rather than having diverse pools and riffles and habitats that they need.

Monica McGarrity returns tomorrow to tell us how not to try and remove this plant from our property.

The Sport Fish Restoration program supports our series.

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