There are a number of functions to which these vessels are put.
The first and the critical, and most important part is the fisheries survey, so that we can determine, to the best of our ability, what fish are in the sea, where, what numbers, what trends, and so on. We have a very extensive time series of data on both oceans and to a growing degree in the Arctic context. These vessels are very much oriented around that.
Secondly, they have a number of ancillary functions in the oceanographic science area. They do a fair number of measurements at sea for pH, salinity, temperature, current, those sorts of activities. To the extent that we can do so, we also will occasionally load them with other experimentation modules to do a variety of much more purpose-built and usually shorter-term research projects.
In addition, there are a number of additional coast guard-type duties, which are not specifically related to science but do a number of other functions in SAR and other areas in the coast guard duty portfolio.