One of those obstacles occurred last month, when warm water from the Gulf Stream seeped into fishing and lobstering grounds around Block Island. Together, the two have been engaged in a long-term data collection effort to track changes occurring over the continental shelf waters. DANIEL: Normally, Ellertson hears about these warm core rings from Glen. We give fishermen access to the data always, so they have ownership of the data. DANIEL: Gawarkiewicz says this bodes well for adaptation in New England’s fisheries, at a time when warming seas will likely mean more frequent warm core rings, something he says is already evident in historical data.