There is no doubt that fish have pain receptors.
They also have motivational centres.
But do they suffer or are they basically robots? We don't know.
I don't believe they have cerebral consciousness.
I take the Buddhist approach, just give due respect for a fellow earthling.
I also love steamed fish with garlic and chilli.
Crappie and morel mushroom's. With cornbread smothered with butter!