3 And the second angel poured his vial upon the sea; and it became blood as of the dead, and every living soul died which was in the sea.
Revelation 16:3 Cross References - Etheridge
Revelation 8:8-9
Revelation 10:2
2 And he had in his hand an open book; and he set his right foot upon the sea, but the left upon the land,
Revelation 11:6
6 These have power to shut heaven, that rain it may not rain in those days;["Days of prophecy." - POLYGLOTS.] and power have they over the waters, to turn them into blood, and to smite the earth with every plague as many times as they will.
Revelation 13:1
1 AND I saw that a beast of prey* ascended from the sea, having ten horns and seven heads, and upon his horns seven diadems; and upon his heads names of blasphemy.[* Literally, (chaivith sheno,) a beast of the tooth, i. e., a carnivorous animal. The same expression occurs throughout.]