What fish is this?

Few weeks back my friend gave me this fish, but till now I still got no idea what fish is it...
Can anyone gives me the answer?


The fish was kinda big, and I got no experience in clearing the gills, stomach and other organs of a fish which suppose to get rid of before cooking. So, the scene was kinda bloody and messed up. Luckily the fish still eatable after being "slaughtered" by me...