In my research group based in Dartmouth, research scientist Nancy Shackell published a paper in 2014 that looked at all of the fish species in the Maritimes region, looked at how sensitive they would be to changes in bottom temperature and the temperature in the water column, and estimated what we think it would be by the middle of this coming century, in 2050 or 2060. In the results published in a journal paper, some species were identified as being sensitive to changes in what we call “thermal habitat”, or the temperature of their habitat. Lobster actually would benefit. Snow crab would actually decline, because snow crab is at the southern extent of its current range with temperature.
In summary, if the Scotian Shelf area warms up a bit, the snow crab will probably decline in that area, but lobster will actually benefit.