sargassum-marine algae-thalassophyte

affect algae algaethalassophyte also and animal animals are bees belt calcium can carbonate community composed conditions coral crustaceans deepsea ecological eels environment exist fish for formed growth hundreds including its kelp living many marine molluscs ocean other over phanerogam physical plant plants process provide reef reefs refers sargassummarine sea seas seaweed shallow shanhus shi skeletons sponges structure surrounding target they thousands which worms years young