Complex sentence: One member of the genus "Gadus" is also commonly referred to as Pollock, the Alaska pollock or walleye pollock ("Gadus chalcogrammus") including the form known as the Norwegian pollock.
Split into simpler sentences: One member of the genus "Gadus" is also commonly referred to as pollock. This is the Alaska pollock or walleye pollock ("Gadus chalcogrammus") including the form known as the Norwegian pollock.