A few years ago I had occasion to be on Sable Island and to hear from DFO scientists. They have previously only had to look at the insides of the seal to see what was in the gut, so to speak, in terms of trying to figure out what kind of fish they'd been eating for the past few weeks. But these days they can use the fatty acids in the seal to determine what it's been eating for five months, which is much more accurate. They were saying, to my surprise, that the amount of cod in the grey seals around Sable Island was 3% to 5%.
What similar work has been done in the gulf, in the southern gulf particularly?