Green fish?

[Kimmyg]

This is probably a stupid question, but...
My husband bought some frozen snapper in bulk for a great price. While I'm frying the fish, I notice one of them have a bright green colour inside. Now I definitely won't eat it, but does that mean the rest of the fish is bad too?

 

[buckytom]

It's difficult to tell from the picture, but it could be the creature's roe, or its liver. Or some vegetation that wasn't cleaned off well.

Do you have a better picture?

 

[CraigC]

What is the country of origin?