Fish, birds, octopi, and sea otters eats Kelp crabs.
One invertebrate sea creature that eats them is the Octopus. A mammalian creature that eats them is the Sea Otter.
Lizards
Sea stars
it turns into a dinosour and eats the shell crabs
A sperm whale.
Waterfowl
birds, fish and sea otters
animals like starfishes and crabs eat sea snails
Crabs,tuna,squid and rays
the bubbly ones
sharks probably?