When a whale carcass sinks to the ocean floor it creates an environment appropriate for succession to happen. How would you explain this phenomenon?

Succession in Marine Ecosystem the deep dark ocean floor is a: barren, inhospitable environment. The disturbance begins when a large whale dies and sinks to the barren ocean floor. What happens after whale death: The whale carcass attracts: many scavengers and decomposers that begin to feast on the decaying carcass.