Hi Mike,
Here's the fishbase info:
http://ichtyonb1.mnhn.fr/Summary/Spe...sname=dumerili
and the pictures:
http://ichtyonb1.mnhn.fr/Photos/Thum...ry.cfm?ID=1005
Here I find that some of the amberjacks don't have the yellow stripe that I suppose gives them their name and some do. But - for example- the fish on the yellow board is the same one as in my picture.
I'm pretty sure it's a juvenile greater amberjack that comes in to feed close to shore, the larger ones remaining further out at sea. Sometimes there are slight differences within the same species that give rise to confusion. But I'm no expert. I just wish to be able to see ones the size you have!
Adrian