can fish live on europa?

'below its icy crust jupiter's moon europa is believed to host a global ocean up to a hundred miles (160 kilometers) deep, with no land to speak of at the surface.

and the extraterrestrial ocean is currently being fed more than a hundred times more oxygen than previous models had suggested, according to provocative new research.
that amount of oxygen would be enough to support more than just microscopic life-forms: at least three million tons of fishlike creatures could theoretically live and breathe on europa, said study author richard greenberg of the university of arizona in tucson.'

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