Parallel
Revelation 8:9
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
καὶ ἀπέθανεν τὸ τρίτον τῶν κτισμάτων ἐν τῇ θαλάσσῃ, τὰ ἔχοντα ψυχάς, καὶ τὸ τρίτον τῶν πλοίων διεφθάρη.
a third of the living creatures in the sea died, and a third of the ships were destroyed.