His kayak was discovered on the western side of the Gold Coast Highway bridge by a member of the public about 1pm.
Footwear was found inside the kayak, but there was no paddle.
Police held grave concerns for Mr Dicker’s welfare because he was intellectually impaired and had a medical condition.
Water police, divers and surf lifesavers scoured the water and officers on foot searched along the creek banks on Sunday, but did not find anything.
Authorities also called in a helicopter to conduct an aerial sweep and searches of the nearby beach were also undertaken on Sunday, but they were also unsuccessful.
Police will prepare a report for the coroner.