Since the 1970s it has become one of the world's more important commercial fish species.

Usually they share their environment with few or no other fish species.

The river as a whole is home to seven fish species of concern.

The pieces become all the other fish species of the river.

Different fish species differ in the ways they hear or sense sound.

The quality of the water in the river is sufficient to support various fish species.

He said that for most fish species, recovery was possible, even from such low numbers.

In total, seven introduced fish species are known from the lake.

It is one of 324 fish species found in Tennessee.

It is one of the oldest fish species in the world.