NOAA scientists have found that environmental factors have changed the distribution patterns of Atlantic mackerel (Scomber scombrus), a marine species found in waters from Cape Hatteras to Newfoundland, shifting the stock northeastward and into shallower waters. Atlantic mackerel migrate great distances on a seasonal basis to feed and spawn, and are sensitive to changes in water temperature. These findings could have significant implications for US commercial and recreational mackerel fisheries that mostly occur during late winter and early spring.