What is the worst smelling fish in world?

It's impossible to definitively say which fish is the "worst smelling" in the world, as this is highly subjective and depends on personal preference. However, some contenders for the title are:

* The 臭豆腐 (chòu dòufu) or "stinky tofu": This fermented tofu dish from China is notorious for its pungent smell, often described as a combination of sewage, feet, and garbage. However, despite the smell, it's considered a delicacy by many.

* Surströmming: This fermented herring from Sweden is known for its extremely strong, putrid smell. It's often compared to rotting garbage or sewer gas.

* Hákarl: This fermented shark meat from Iceland has a very strong ammonia-like smell. It's not for everyone, but some people find it surprisingly delicious.

* Fish with strong ammonia odor: Some fish, particularly those that are not handled or stored properly, can develop a strong ammonia odor. This is due to the breakdown of proteins in the fish.

It's important to note that the smell of fish is often influenced by factors such as storage conditions, freshness, and preparation methods.

Ultimately, the "worst smelling" fish is a matter of opinion. What one person finds offensive, another might find intriguing.