Steps in the making the list of endangered and threatened fish in Illinois

Streamline chub is one species of fish under consideration for status change in Illinois. (JeremyTiemann)

CHAMPAIGN, Ill. — Robert Colombo suggested the Illinois-endangered harlequin darter might be “a function of our sampling.”

“If we really wanted, we could find them,” he said. “I think this one warrants more study; that we directly sample them. Just like sand darter, [it] requires a certain type of sampling.”