An Oceanographer. Marine Biologist, that sort of thing.
marine biologist
An "oceanographer".
A biotechnology scientist.
A scientist that studies viruses is called a virologist.
An oceanographer.
oceanographer
A scientist who studies mollusks is called a teuthologist.
I call them "scientists" but their called oceanographers =D
A scientist that studies bears would be called an ursinologist.
virologist
An aviologist.
A meteorologist.