
What is this phenomenon called?
I vividly remember watching a documentary about this when I was a kid, but I have no idea what it was actually about.
It was a large yellow blob, stringy and slimy like the pulp of a pumpkin. It was swarmed by lots of small silver fishes as it sunk, and I think they were either eating or laying eggs in it. I explicitly remember some got stuck as the mass sunk right into the abyss.