Polar ocean acidification on track?

Rate of Iceland Sea acidification from time series measurements

I haven't read any commentary on this bit of research into the measured drop in ocean pH around Iceland, but it sure sounds like it is in line with predications made about how the polar oceans will suffer first under ocean acidification from CO2. Here's the conclusion to the paper (bold is mine):

The anthropogenic increase of atmospheric carbon dioxide affects the Nordic Seas both at the surface and at depth. In the surface, the pH has decreased from 8.13 to 8.08 between 1985 and 2008, and the aragonite saturation (Ò), which is naturally low 10 anyway, decreased from 1.6 to 1.5 between 1985 and 2008. In the deep water, the pressure effect adds to the low temperature, and above the depths of about 1500 m, the aragonite saturation horizon is shoaling at a rate of about 4myr−1. This shoaling results from extensive vertical mixing which transmits atmospheric signatures to waters as deep as 1500m (Messias et al., 2008). Large areas of the benthos are thus 15 undergoing a rapid transition from being exposed to waters that are supersaturated to being exposed to waters that are undersaturated with respect to aragonite. There is an urgent need to clarify the effects of these changes on associated benthic ecosystems, especially at shallower depths, where the population of carbonate forming benthic biota are much greater.