| They are found in all seas, at all latitudes, and from the intertidal to the abyssal zone. |
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| Diversity in the abyssal zone is also relatively flat compared to the bathyal zone. |
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| Under water: Scuba diving or snorkelling will allow us to visit the abyssal zone of Scandola Nature Reserve. |
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| Created in Paris at the National Museum of Natural History in 2007, the exhibition ABYSSES gathers for the first time in history pictures, videos and specimens of the abyssal zone. |
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| It lies in the hadal zone beyond the abyssal zone, and plunges down to a water depth of around 11 kilometers. |
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| Abyssal waters retain several cubic centimetres of dissolved oxygen per litre, because the sparse animal populations do not consume oxygen faster than it is introduced into the abyssal zone. |
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| Many genera are totally indentured to the abyssal zone, such as many cidaroids, most of the genera in the Echinothuriidae family, or the strange genus Dermechinus. |
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| There are at least 12,914 marine species in South Africa, but small bodied species are poorly documented and the abyssal zone is almost completely unexplored. |
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