"Fish that are outside the norm are always notable," said Rod Bradford, an aquatic biologist who specializes in fish that switch between fresh and salt water for breeding and feeding.

"It just becomes a bit of a mug's game to try to interpret it in the context of environmental processes."

Barry Harwood of Arcadia, N.S., has golfed at the River Hills Golf and Country Club in southwestern Nova Scotia for over three decades.

The Clyde River runs the length of the golf course's first fairway, where the river meets the salty water of Lyles Bay.