I have a doubt whether eating Shark is haram or halal for muslims. If haram please explain.. thank you

That is an issue for the Islam forum... not the "other food and drink forum" I'll ask it be moved.

Shark is at the top of the food chain and as such is high in Mercury and heavy metals as far as a seafood goes... meaning eat only a small amount... and not often. None if you are pregnant or nursing.