The Ocean Sciences Department offers a master of science (M.S.) degree in ocean sciences. The ocean sciences M.S. degree can be attained through plan I: thesis (coursework and thesis, minimum 42 credits), or plan II: examination (coursework and comprehensive examination, minimum 40 credits). The degree combines core courses and electives to provide depth and breadth in the ocean sciences. Graduates from the program are exceptionally prepared to take research or management positions in organizations concerned with the marine environment, to become educators, or to enter doctoral programs in ocean sciences or related fields. The thesis M.S. degree is preparation for research careers.

Whereas the doctoral program has an oceanographic orientation, the ocean sciences master's program is broader and has traditionally attracted many students in marine biology and ecology. Students are encouraged to select a course of study that draws on the expertise of the core ocean sciences faculty and any of the affiliated faculty in other departments. Customized programs of study that combine related disciplines are supported in the master's program.