Yes. They can live to be quite old.
They will feed on crabs at a time when there are no other things around. They're certainly not their preferred prey. I'm sure they're quite crunchy to sink your teeth into, but we do get photographs sent to us because fishermen are obviously concerned when they see that.
I think it gives us a bit of a selective picture of what they're eating. It's not a balanced sample of what cod in general eat. Fishermen are concerned when they see crabs in the cod's stomach, and so they send the pictures to us and they put them on social media. It's not as prevalent as those bits of information might indicate. It's not trivial, and I don't mean to trivialize it, but it certainly gives it a bit more of a representation than perhaps is evident within the whole stock.