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In order to implement proper fishery management strategies aimed at avoiding stock declines, information about connectivity among\udstocks and populations is critically required. In this perspective, the present study investigated population structure of the Atlantic\udmackerel Scomber scombrus in the northern–central Adriatic Sea by integrating multiple approaches (analysis of fisheries data, population\udgenetics, and otolith chemistry). Monthly data of fishery landings indicate a latitudinal trend along the western Adriatic coast,\udwith Atlantic mackerel disappearing from the northern waters in winter, corresponding to the reproductive season. Population genetic\udanalyses by genotyping of eight microsatellites clearly point to the presence of a single panmictic population in the northern–central\udAdriatic Sea. Otolith cores of samples from the northern–central Adriatic were chemically homogeneous, suggesting a common\udspawning ground. These results strongly suggest that Atlantic mackerel perform an autumn–winter migration in the northern–\udcentral Adriatic Sea, from the northern to the central sector, to reach a single spawning ground, and that a single population is\udpresent in this area. Considering that S. scombrus has shown a marked decline in the last 40 years in the Adriatic, this study highlights\uda potential high vulnerability to collapse by overfishing for the Atlantic mackerel stocks in this geographic area

Single population and common natal origin for Adriatic Scomber scombrus stocks: evidence from an integrated approach