Over centuries, the plant cover on the water has become sort of a floating mat.

There will usually be a floating mat of peat moss.

There is an opportunity to walk on a floating mat of sphagnum moss.

In some places, floating mats of vegetation are so thick boat travel is nearly impossible.

The aboveground parts die and break off, forming floating mats.

Once, the ship drifted for several hours through floating mats or sheets of some bright green material.

However, it has also been reported growing in floating mats in slightly deeper water.

Cyanobacteria collect together in shallow water to form huge, floating mats, like felt.

The roots of these cattails create a floating mat on which other plants can root and grow.

Some are easily seen and form floating mats on the surface, but others are microscopic.

The nest is often composed of floating mats of vegetation.

Large groups of other fish could be seen nibbling at the floating mats of dead creatures.

The rhizomes creep along the ground or float in water, forming floating mats.

The area beneath these floating mats is exceptionally rich in aquatic lifeforms.

Cyanobacteria lived in huge masses that could form floating mats or extensive reefs.

However, floating mats of rushes and sedges cover the south side of the lake.

Equipment includes toys from rings to floating mats and noodles and balls.

It is sometimes torn from the rock in storms, resulting in floating mats of weed.

Where water conditions permit, such as in bays protected from waves, the species sometimes forms thick, floating mats.

Fun session with floating mats and balls.

Vast, dim shapes moved in the distance, dipping their long necks into the floating mats of vegetation.

Filling-in of the lake basin produced a floating mat that upon enclosure developed into a poor fen.

It sometimes forms a floating mat over water or very wet peat, making a mobile surface known as quaking bog.

Hatchling loggerhead turtles live in floating mats of Sargassum algae.

Filamentous algae are long strands of algae cells that form floating mats.