There are many more people getting degrees in marine biology than there are working in the field. Unless you are very diligent, talented and LUCKY you will not be able to pursue marine biology as a full time career. read more
For marine biological careers, preparatory courses in basic biology, zoology, chemistry, physics, biometrics, mathematics, and statistics are important. English is important, too, because one of the most important activities of a marine biologist is writing scientific papers and getting them published. read more