Before revision: While flowing out of the Mediterranean basin it undergoes such a strong mixing as consequence of nonlinear interactions with tides and topography, that the water masses composing this current are not distinguishable anymore when reaching the western side of the strait.
After revision: Through its nonlinear interactions with tides and topography, as it flows out of the Mediterranean basin it undergoes such strong mixing that the water masses composing this current become indistinguishable upon reaching the western side of the strait.