Rather smelly and fishy.
The item id for Amberjack Raw in unturned is 6606. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Consumeable
Size_X: 3
Size_Y: 2
Size_Z: 0.42
Food: 40
Virus: 40
Health: 5