They are usually found in lakes, rivers, swamps and man-made reservoirs.

The lake is a 12 hectares man-made reservoir and it was officially opened in 1895.

It was, at the time, the largest man-made reservoir in the world.

Bayles Lake is a man-made reservoir constructed in the late 1940s fed by a natural spring.

At the time when the lake was finished, it was the world's largest man-made reservoir.

Within the Llanmartin area, a large man-made reservoir is located.

The lake is a man-made reservoir, created by the building of a dam which was inaugurated in 1933.

Had the project been completed, it would have created the largest man-made reservoir in the world.

The lake is a man-made reservoir created in 1937 for flood control and water conservation.

Also known to thrive in man-made reservoirs and irrigation canals.