Ok, marine Biology does not mean a saltwater biologist. Marine biologists deal with all aquatic life, fresh and saltwater and it is a good industry to get into as long as you are dedicated enough to go through all of the schooling, be prepared for a heavy dose of math and Science.

In Alaska, I did a lot of research in marine Biology and even started taking classes before I joined the armed forces, jobs you could be doing are fish counts, environmental studies, management in conjunction with Df&G...etc.