My sister studied marine biology many many years ago so things might have changed a bit. I recently read about what a marine biologist's job description entails, and this is the information I got from the below web site:
http://life.bio.sunysb.edu/marinebio/becoming.html To quote part of the article:
"Marine biology is the field of knowledge relating to marine organisms. But what is a marine biologist? To many, it means being a dolphin trainer but to others it means managing a marine wildlife sanctuary. There are many answers to this question and I would say that a marine biologist is someone who works in some way in studying, observing, protecting, or managing marine organisms, be they plant or animal. If you study marine fish populations you are a marine biologist. If you manage a marine wildlife preserve and are concerned with protection of marine organisms there, then you too are a marine biologist. You know you're a marine biologist if you have a notebook or computer in which you record information often about marine organisms. But you may also be a marine biologist if you are collecting sponges, or looking for bioactive drugs that might help people in curing disease. You may be counting marine creatures, doing DNA sequencing of them, observing them in the laboratory or making theoretical models predicting their abundance once fishing is decreased. So marine biologists do many things, but what they have in common is working with marine organisms."
ALSO, ALPHABETICALLY LISTED BELOW ARE COLLEGES/UNIVERSITIES THAT OFFER MARINE BIOLOGY COURSES/MAJOR. GOOD LUCK!
Alabama State University
Alaska Pacific University
Auburn University
Bemidji State University
Brown University
California State University--East Bay
California State University--Long Beach
Central Methodist University
Coastal Carolina University
College of Charleston
College of the Atlantic
Dalhousie University
Dowling College
East Stroudsburg University of Pennsylvania
Eckerd College
Fairleigh Dickinson University
Florida Institute of Technology
Florida International University
Hawaii Pacific University
Humboldt State University
Jacksonville University
Juniata College
Lawrence University
McGill University
Missouri Southern State University
Northeastern State University
Nova Southeastern University
Prescott College
Richard Stockton College of New Jersey
Roger Williams University
Rollins College
Rutgers, the State University of New Jersey--New Brunswick
SUNY--Maritime College
SUNY--Oswego
Samford University
San Diego State University
Savannah State University
Smith College
Southwestern College
St. Francis University
St. Joseph's College
Suffolk University
Texas A&M University--Galveston
Troy University
United States Coast Guard Academy
University of Alabama
University of Alaska--Southeast
University of California--Los Angeles
University of California--Santa Barbara
University of California--Santa Cruz
University of Connecticut
University of Hawaii--Hilo
University of Hawaii--Manoa
University of Maine--Machias
University of Maine--Orono
University of Massachusetts--Dartmouth
University of Miami
University of New England
University of New Haven
University of North Alabama
University of North Carolina--Wilmington
University of Oregon
University of Puerto Rico--Humacao
University of Rhode Island
University of San Diego
University of South Carolina--Columbia
University of Southern Mississippi
University of Tampa
University of West Alabama
University of West Florida
University of the Virgin Islands
Waynesburg College
Western Washington University