A. marina may refer to: Acaryochloris marina, a chlorophyll d containing symbiotic species of the phylum Cyanobacteria Amycolatopsis marina, a high-GC content bacterium species in the genus Amycolatopsis Aurantiacicella marina, a bacterium from the genus of Aurantiacicella Aureitalea marina, a bacterium from the genus of Aureitalea Aureivirga marina, a marine bacterium from the genus of Aureivirga Avicennia marina, the grey mangrove or white mangrove, a mangrove tree species
See also Marina (disambiguation)