Archive for the 'Artificial Reefs' Category

Types of Artificial Reefs

Thursday, November 10th, 2016
Tugboat preparing to deploy near shore reefing materials.

Tugboat preparing to deploy near shore reefing materials.

This is Passport to Texas

Artificial reefs created in the Gulf of Mexico provide substrate and habitat for marine life. The distance from shore factors into the kind of materials used for the reefs.

Well, in our program we look at the Gulf of Mexico as a whole.

Dale Shively is artificial reef program leader for Texas Parks and Wildlife

As you get near shore, you get into shallower environments; you get into more mud-type environments. As you travel farther off shore, you get into deeper water, clearer water, more sand-type environments. The materials that we use are related to whatever water depth, and the type of water that we’re working in.

Rubble may be used near shore whereas ships and oil platforms are best in deep water.

In shallower environments, we need materials that are going to fit within a certain clearance—and that clearance is set by the coast guard and by the US Army Corps of Engineers. So, as we travel farther offshore, we’ll get into larger pieces of material such as ships and oil platforms. But, we’ll typically use pre-designed materials such as concrete pyramids, or man-made materials such as quarry rock, concrete culverts, and things like that for the shallower environments.

These reefs, near shore and farther out, attract marine life and create better fishing opportunities for all.

The Sport Fish Restoration Program supports our series.

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

What are Artificial Reefs?

Wednesday, November 9th, 2016
School of fish attracted to reefed oil platform.

School of fish attracted to reefed oil platform.

This is Passport to Texas

The Gulf of Mexico has a lot going for it, except for hard substrate, which is necessary to attract marine life.

So, the little bit of hard substrate that we do have out there, we want to maintain and enhance that.

Dale Shively program leader for the artificial reef program at Texas Parks and Wildlife says they use various materials—from decommissioned ships and old oil platforms to construction rubble—to create substrate.

We don’t dump anything. We deploy materials. The materials that we use have been vetted, they are stable, complex and durable. They’re environmentally safe, and they add to the complexity of the environment that’s there.

Shively says it doesn’t take long before the artificial materials “come to life.”

The material immediately attracts marine organisms—especially fish. That’s one of the features. But, what we look for is long-term settling of organisms at that reef site. In a short period of time they will what we call ‘foul’ the material by growing on it. You’ll get barnacles, and crustaceans and other marine life. Once they settle and actually grow onto the structure that creates the basis of the food web. And from there, you develop a complex reef environment.

And that enhanced food web means better fishing for all.

The Sport Fish Restoration program supports our series.

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