Yes. I'll speak from my own experience and knowledge. There have been studies on things like particle drift. You have a simulation where you put some particles in the ocean off Labrador and see where they end up. There have been recruitment studies for various fish species, and what they generally show is the pattern of the Labrador current, where things tend to go from north to south. Something that starts off Labrador could end up on what's called the tail of the bank, for example. There are simulation studies on it.
Our oceanographic surveys monitor the strength of the current and the transport flow of the current in any given year. Those sorts of things are monitored and changes are reported, but I'm not an expert on the exact changes that are occurring.