a Marine Biologist is what you would call it.
A person who studies the branch of zoology dealing with fish is called an ichthyologist.
The word is ichthyologist, from the Greek root ichthys.
Don't know, but a fish is called an ichthyologist
a person that studies gems is called a gemologist.
The Person Who studies about mamals , he is called mamalogist....
An Itchyolohist is a person who studies fish.
An ichthyoligist is a person who studies fish.
A person who studies animals is called a zoologist.
An ichthyologist is a scientist that studies fish
This answer is a entomologistA scientist who only studies fish is called an ichthyologist.
A person who studies physics is called a physicist, a person who studies chemistry is called a chemist, and a person who studies biology is called a biologist.
A person who studies the mind and behavior is called a psychologist.