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Bleached (dead) coralline algae (Corallina officinalis) and encrusting algae (Lithothamnia) on a pebble
algae living in these conditions. Different water temperatures = different algae = different colors.
I am getting a bit worried about these since they are getting aggressive and are growing big fast. Seems these aren't really algae eaters at all but fish that as adults can grow to a foot long and will tear the scales off other fish for a snack. Hmm, I think the pair I have are going back to the store
The brilliant algae covering the moving stream that carries the hot water from the source to the hot pools
The rippled texture are bubbles due to gas rising to the surface but being unable to penetrate the layered matte of algae. There were many frogs or toads and snails and insects, but all of them too fast for me.
The Aglaeus runs on an algae-electric hybrid engine. Here you can see beakers of algae fuel on display. Congressman Bilbray is one of the leading voices for the development of algae fuel in the United States. The fuel in the beakers represents a potential major new source of energy for the United States.
Fig. 21.—A, C, successive stages in the development of the sexual organs of a green felt (Vaucheria). an. antheridium. og. oögonium. D, a ripe oögonium. E, the same after it has opened. o, the egg cell. F, a ripe spore. G, a species in which the sexual organs are borne separately on the main filament. A, F, × 150. G, × 50. cl. chloroplasts. ol. oil.