By ADRIAN MILLER
CLARENCE fishermen are being asked to look out for a fish called the banded grunter, a noxious pest which threatens aquatic species.
The fish, which is normally found along the North Coast of Australia, has been introduced into NSW and could severely damage Clarence river fish stocks.
Southern Cross University graduate student Gavin Butler, said the aggressive fish would cause havoc in NSW.
"A big concern is the population seems to be exploding," he said.
Mr Butler said it was important to stop their spread early because if they became established in the Clarence, eradication would become almost impossible.
The grunter is distinctively patterned with five vertical black stripes on a silver to bronze background, interspersed with small brown spots. They can grow up to 25 centimetres long, but are more commonly around eight to 12 centimetres.