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Which crustaceans live at the greatest depths of the ocean?

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Members of the orders Isopoda and Amphipoda are among the crustaceans that live at the greatest depths of the ocean. These organisms have been discovered in oceanic trenches at depths reaching up to 10,000 meters (approximately 32,800 feet). While marine amphipods have been documented at depths exceeding 9,100 meters, these two groups represent the crustacean species capable of inhabiting the most extreme abyssal environments.12