Fig. 3

Distance from complete data location and uncertainty associated with differing volumes of geolocation data received for tags detailing long distance movements. a Solid lines show weekly mean distances plotted with a 7-day running average over days since deployment. Raw values are plotted as points. b, c boxplots showing the relationship between data volume groups and distance from corresponding complete data location (total data set n = 4681) and 12-hourly uncertainty (total data set n = 6468). Widths of boxplots are proportional to the number of observations in each group. The approximate spawning season for ABT is highlighted to indicate differences occurring during Mediterranean Sea spawning period. Colour scheme in “a” corresponds to data categories shown in “b” and “c”