Ross! Tell us more about north Atlantic Corals! In 40+ years of extensive collecting in the northeastern United States, I have encountered only one coral that I know of, Astrangia danae (I think that's how you spell it), which growns in little white patches on rocks here and there. I never considered it as having much ecological importance, let alone enough to draw worldwide researchers to an international conference! Cold water corals don't form reefs - or do they?? What is their significance? How common are they? How many species are there? Where do they live? Regards, Paul M.