Do fish feel pain?

Do fish feel pain?

The answer is no! It hurts when we humans accidentally get hooked, but lucky for the fish, they don't feel the pain as we do. Their mouths are composed mainly of the skin, without nerves, so that they can eat the quills, the thorny foods they need to survive. The experience is involving one with a hook in the mouth, the other without.

I have No Idea if cats, dogs, laboratory animals, chickens, and cattle feel the pain of how we do, but we still offer them more and more humane treatment and legal protections because they have demonstrated an ability to suffer.

Fish also behave so as to indicate that they consciously experience pain. In one study, the researchers dropped clusters of brightly colored Lego blocks into tanks containing rainbow trout. Trout usually avoid an unknown object suddenly introduced into their environment in case it is dangerous. But when scientists gave rainbow trout a painful injection of acetic acid, they were much less likely to expose these defensive behaviors, presumably because they were distracted by their own suffering.

On the other hand, fish injected with acid and morphine maintains their usual prudence. Like all analgesics, morphine blunts the experience of pain but does nothing to remove the source of the pain itself, suggesting that the behavior of the fish reflects their mental state, not mere physiology. If the fish were a reflex response to the presence of caustic acid, as opposed to consciously feel the pain, then morphine should not have made a difference.

However, A typical interactions with the placed in a puddle of glass, or the fillet trimmed on a plate are too circumscribed to reveal a capacity for suffering. In fact, there is a culinary tradition, still practiced today, known as Ikizukuri: eating the raw flesh of a live fish. You can find videos online.

All fish that are taken to eat should be handled with care to reduce stress and humanely killed as soon as possible after capture. Human slaughter requires that the fish be stunned before being bled. I think doping will be a good behavior which involves driving a sharp tip into the brain of the fish. 

The spike should be placed in a position to penetrate the fish's brain, and then pushed quickly and firmly into the skull. The impact of the spike must produce immediate unconsciousness. The spike should then be moved from left to right to destroy the brain.

After stunning or doping, the fish must be bled by cutting the scrapers or, with large fish, the main artery.

In reality, fish feel pain. It is probably different from what humans feel, but it is still a kind of pain.

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