green bubbles slimy algae floating on the surface of the water

alga algae aquatic blob bog bubble carpet cyanobacteria dirt dirty drain duckweed environment faecal float flora fungus grass greenish growth hlorophyll jellylike leaf marsh morass moss muck nature nucleusbearing oily ooze organic organisms outside photosynthetic plant pool quagmire rain river sewage side sinusitis slime sludge smut soggy splodge surface tiny waste water