‘The closest humans come to being a fish’: how scuba is pushing new limits

‘The closest humans come to being a fish’: how scuba is pushing new limits

Source: theguardian

12/28/2022

Credit: Luiz Rocha/California Academy of Sciences

Scientists have begun to explore the ocean’s ‘middle light’ – the mesophotic zone, a lesser-known part of our seas – with new rebreathers

In between the sunlit shallows and the dark, deep ocean lies an inky realm where few people have ever been. Stretching from about 30 to 150 metres, the mesophotic zone (meaning “middle light”) is an awkward depth. It lies just beyond the reach of regular scuba divers and it’s usually what aquanauts inside multimillion-dollar submersibles merely glimpse as they plunge deeper.

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