The first photograph here shows the power of the Dolphin charge, and the resulting explosion of water and fish. Before the final push to shore these Dolphin have been circling and herding this school.
Once on shore fish that have not jumped over and back are spread out before the Dolphin.
Dolphin will grab what they can and quickly roll right, then twist until back into deeper water.
You described it well.
Thanks. It’s hard to explain, as you know.