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Except near hydrothermal vents, the communities of the oceanic aphotic zone get their energy mainly from

User IniTech
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The answer is organic matter sinking from the photic zone. The regions are called aphotic because the sun rays cannot penetrate to the depths hence no producers (photosynthetic organisms) can thrive in the regions. Therefore only scavengers, decomposers , and detritivores.
User Blessed Geek
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