The history of School of Marine Science began with the establishment of Department of Marine Biology and Fisheries under Travancore University in the year 1938 to cater the marine science education and research. As part of furthe development, an Oceanography laboratory was established in 1956 at Naval Base, Cochin. The education program began with a two-year M. Sc. course in Marine Biology and Oceanography in 1958. This laboratory had a new building in Ernakulam city by the year 1962 with a new name "Department of Marine Biology and Oceanography". In 1971, University of Cochin was established and the School was made under the university. The school witnessed two spin-offs, School of Industrial Fisheres in 1976 and School of Environmental Studies in 1980. The department was renamed as "School of Marine Sciences" in 1983. By the year 1995, the school was restructured with five departments Department of Physical Oceanography, Department of Chemical Oceanography, Department of Marine Geology and Geophysics, Department of Marine Biology, Microbiology & Biochemistry and Department of Atmospheric Sciences. The School is presently running five M. Sc., two M.Tech. and two M. Phil courses.
The Library of School of Marine Science contains more than 20,000 books, 10000 back volumes of journals, access to a number of online journals, more than 200 expedition reports and reprints.
The thrust area include marine biodiversity, marine ecology, fishery biology, marine microbiology, biology of polar ecosystems, microbial pollution, modeling biogeochemical cycles, harmful algae, marine benthos, captive broodstock development and seed production techniques of Fin and shellfishes, wetland studies, community ecology, ecotoxicology, marine genomics, climate change, sealevel variation, estuarine modeling, coastal ocean dynamics, coastal zone management, chemical cycles in mangrove ecosystem, groundwater quality, estuarine chemo-system, biogeochemistry, marine organic sulphur compounds, strosphere-troposphere interactions, monsoon, atmospheric boundary layer, ozone variability, ocean-atmospheric modeling, numerical weather forecasting, air pollution and more