Figure 3.

Modelled ocean current directions and velocities (from earth.nullschool.net) for New Zealand and Southern Ocean on (a) 7 April 2017; and (b) 17 June 2017, while the kelp rafts described in this study were at sea. Regional distributions of genetically distinct D. antarctica kelp populations (adapted from [21]) are indicated in (a). Potential oceanographic connectivity between the Macquarie Island region and mainland NZ in July 2017 is indicated by a yellow arrow (bottom left of (b)). (Online version in colour.)