Unfortunately, we don't. We have been accumulating information, but it was only about seven years ago that we were able to determine in the Gulf of St. Lawrence that grey seals were a heavy predator on the cod stocks there. Where the huge herd of harp seals are, we know they consume maybe 1.4 tonnes per year each, but we don't know what they consume, and there are seven million of them.
On April 20th, 2023. See this statement in context.