Debris found in search for WA fisherman

Debris has been found in the search for a fisherman who failed to return from a solo fishing trip off Perth on Wednesday.

Police say the debris can't yet be positively identified, but it's similar to an esky that Rohan Wilson had on board his 6.4 metre boat.

Police and volunteer marine rescue vessels are now focusing their search south of the area where the debris was found, 30 nautical miles west of Mindarie.

Mr Wilson's car and boat trailer were found at the Mindarie marina where he had been due to return at 8pm on Wednesday.

His family have described him as a much loved husband and father of two young boys, and said they were praying for positive developments.