Fig. 3
From: First insights into the spatial behaviour of Octopus vulgaris in the wild using acoustic telemetry

Schematic representation of a an excursion, b den visits c a den transfer. The metrics generated from this analysis were: a the maximum displacement from the den (blue segment); the maximum distance from the den (black arrow); the bearing of the excursion (green arrow); duration of the excursion (in minutes), the percentage of day and night time during the excursion; b the time spent inside the den for each visit (in minutes); the percentage of day and night time spent inside the den; c the duration of the travel between dens (in minutes) and the percentage of day and night time spent during the travel between dens