There are two aspects to that. It breaks down into two themes.
Some of it relates to fieldwork, meaning field studies, mainly targeting.... It's very difficult to determine what eats what in real time in the ocean, so there are a few techniques that one can use. If we are linking back to seals, it's basically lavage. You check their diet, and there can be some fatty acid approaches. It's diet work, consumption, across a suite of species, and we usually use our ongoing surveys to collect that kind of information.
The second piece is a modelling piece, a simulation piece, so you take what information you have in terms of consumption and you try to build that into population models and harvest models. It's more of a simulation approach. It's two streams.