Oologah Infestation
Photos below were taken by David Britton, U.S. Fish & Wildlife Service.

Above is a dead shell found along the shore at Oologah.

This sailboat had been in Oologah Reservoir for 10 Years.

This is the same sailboat from the previous picture.

The sailboat was heavily encrusted with zebra mussels.

Note the layer of mussels between the runners and the boat hull above.

The boat of the sailboat was completely covered.
The red thing is the retractable centerboard, which is virtually
impossible to clean thoroughly when the sailboat is trailered.

More of the sailboat bottom.

Notice the wooden rudder above.

Here is a closer look at the rudder.

This is the marina where the sailboat was stored.

The population at Oologah is still growing. Notice the new (small) mussels above.

This is the end of a stick taken from the marina.

The stick is very heavily encrusted.

Here is a jon boat with an seriously encrusted outboard motor.

This is the prop from the outboard motor in the previous picture.