Plagues in Israel
This jellyfish plague was proceeded by a large massing of sharks.
See this article from Breaking Israel News - link.
Psalm 22:12 (NASB)
Many bulls have surrounded me;
Strong bulls of Bashan have encircled me.
Surely in that day there shall be a great shaking in the land of Yisrael; so that the fishes of the sea and the fowls of the heaven and the beasts of the field and all creeping things that creep upon the ground and all the men that are upon the face of the earth shall shake at My presence.
The Time of Jacob's trouble is surely at the door.