Marine mucilage, also referenced as sea snot or sea saliva, is thick, gelatinous organic matter found around the world's oceans, lately observed in the Mediterranean Sea.
Marine mucilage carries diverse microorganisms. Triggers that cause it to form include increased phosphorus, drought conditions, and climate change. Its effects are widespread, affecting fishing industries, smothering sea life, and spreading bacteria and viruses. Citizens and governments around the world are working to institute countermeasures, including treatment, seawater cleanup, and other public policies.