3 The second angel poured out his bowl upon the sea, and it became blood like that of a dead man and every living thing that was in the sea died.
Revelation 16:3 Cross References - Riverside
Revelation 8:8-9
Revelation 10:2
2 He had in his hand a little book open. He set his right foot on the sea and his left on the land
Revelation 11:6
6 They have power to shut up heaven so that no rain shall fall during the days that they are prophesying, and they have power over the waters to turn them into blood and power to smite the earth with every kind of plague as often as they please.
Revelation 13:1
1 THEN I stood on the sand of the sea and I saw rising out of the sea a Beast with ten horns and seven heads. On his horns were ten diadems and upon his heads were profane names.