Are there bull sharks in the Hudson river?

Answer 1

There are a range of harmless sharks such as sandbar sharks believed to live in the Hudson river. In centuries gone by sharks were thought to be plentiful in the Hudson. However due to industrialisation and increased traffic on the river, the waters no longer provide an environment conducive to the survival of sharks.

The article below also answers this question in greater depth.

http://www.nytimes.com/2005/05/29/nyregion/thecity/29shar.html?pagewanted=print

So the answer is yes.

Answer 2

Yes incording to shark week