A RARE visitor to Port Coogee has fascinated beachgoers.
A swordfish, believed to be about 1.5m long, has spent at least five days around the jetty.
And while there were suggestions it was a marlin, Curtin University marine scientist Jordan Goetze identified it as a swordfish.
Its presence so close to shore was particularly unusual.
“They are normally open water deep sea species found on the continental shelf anywhere from the surface to depths of 500-plus metres,” he said.
“It looks like a small one given they grow to 4.5m so is probably sick or lost.”
The spear of a swordfish can be dangerous to humans, particularly if the creature thrashes about after being caught on a line.
Dr Goetze said the fish would not purposely attack a human in the water, but advised against swimming with it.
A swordfish uses its spear-shaped nose to slash its prey, weakening it and making it easier to catch.