Open educational resources (OER) refer to openly licensed educational materials that can be legally shared and adapted. The document discusses OER in higher education courses related to aquaculture and fisheries. It outlines what OER include, how they are licensed, where to find and contribute OER, and why they are used. Barriers to OER adoption include lack of awareness, quality concerns, and difficulty modifying resources. However, OER provide opportunities for affordable and accessible education through additional learning sources. The document concludes by recommending increased cooperation between higher education and research to strengthen open education in aquaculture and fisheries fields.