Aphotic Zone
In an energy pyramid, algae would be the substance found at the bottom trophic level. Algae are eukaryotic organisms, and can be unicellular or multicellular.
mainly continental volcanic arcs
Most of the world's water is in the ocean, however, a significant amount is frozen in glaciers and ice caps at the north and south poles. Only 0.3% of the earth's water is found in rivers and lakes. The Pacific Ocean is the biggest ocean in the world.
it brackes rocks
Basalt mainly.
* Aphotic Zone
Bioluminescent organisms are those that produce light. There are bioluminescent bacteria that live in the ocean like those in the genera Vibrio and Photomicrobium.
A bioluminescent organism is one that can produce and emit light through a chemical reaction that converts chemical energy into light energy. Some examples of bioluminescent organisms include: fireflies, glow worms, annelids, anglerfish, gulper eel, coral, krill, clams, octopi and vampire squid, to name a few. To view a list of marine bioluminescent organisms, visit the related links on the bottom of this page under this answer.
bioluminescent animals live in the deep layer of the ocean. including jellyfish,octopses, and squid.
They can live in Atlantic Ocean, Pacific Ocean, and Indian Ocean. They are mainly found in warm water areas.
as to the darkness, most, if not all of the organisms there are blind or have a bioluminescent light. As to the organisms that don't have mouths, they most likely get their energy from chemosynthetic bacteria that live inside or on their body.
Phytoplankton
The answer to your question is phytoplankton
Bioluminescent chemicals are organic molecules that emit light (photons) under specific conditions that occur in the originating animal's natural habitat. Examples of this include the firefly/lightning bug in the United States and many organisms that reside in the deep ocean.
Pacific and Indian Ocean. Haven't heard of any in the Atlantic
They can live in Atlantic Ocean, Pacific Ocean, and Indian Ocean. They are mainly found in warm water areas.
Phytoplankton