Jonathan travels to the St. Lawrence river in upstate New York and the island of St. Thomas in the Caribbean to investigate invasive species like zebra mussels and lionfish and how they affect the ecosystems into which they have been introduced.

**********************************************************************
If you like Jonathan Bird's Blue World, don't forget to subscribe!

You can join us on Facebook!
  / blueworldtv  

Or Twitter!
  / blueworld_tv  

On the Web:
http://www.blueworldTV.com
**********************************************************************