The three acronyms refer to the three strategic outcomes of the department, so SFA is “sustainable fisheries and aquaculture”, HAPAE is “healthy and productive aquatic ecosystems”, and SAW is “safe and accessible waterways”. Science is broken out that way because science contributes to each of the strategic outcomes. It's not a neat contribution; each of our activities contributes in varying amounts to all of the strategic outcomes, but we have separated them for the sake of simplicity, one might say, although it's not that simple.
On May 17th, 2007. See this statement in context.