What is this fish? (blue warehou)

[Toilor]

Caught from the rocks at Blackmans Bay Tasmania in 8 metres of water on fish bait using trusty No.8 long shank.  I have spent too much time on Internet trying to ID to no avail.  We call the platform we were fishing "Kenny Rogers" and have named the fish after him but desperate to find out more info.  Thank you in for advance.

[Blackfish]

For the purists

Blue Warehou "Seriolella brama"

[Ryder]

Juvenile yellowtail kingfish

[Flickn Mad]

Looks similar to a juvenile dolphin fish. But it's a long way from home.

[rickmarlin62]

think you may be right swordie but ive never seen a juvenile...rick

[Yowie]

Agree with Swordy.