Revelation 8:9
and one third of [all] living sea creatures died, and one third of [all] ships were destroyed.
Revelation 8:7
[When] the first trumpet sounded [I saw] hail and fire, mingled with blood, being hurled down onto the earth. And one third of it was burned up, and one third of the trees were burned up and all the green grass was [also] burned up.
Revelation 8:10
[When] the third angel sounded its trumpet [I saw] a huge star, like a flaming torch, falling from heaven. It fell on one third of the rivers and on the springs of water.
Revelation 8:12
[When] the fourth angel sounded its trumpet [I saw] one third of the sun, one third of the moon, and one third of the stars being struck, so that one third [of their light] would become darkened. So, the daytime had [only] one third of its [normal] light, and the nighttime was the same way.
Revelation 16:3
Then the second [angel] poured out his bowl into the ocean, making it turn into blood like that of a dead person, and every living thing in the ocean died.