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)