Figure 6

Broad scale movements and regional connectivity. (a) and (b) Estimated movements of shark 25 (pink line) and shark 28 (green line) showing movements west of Bass strait across the hypothesized line of separation between the eastern Australasian and southern-western Australasian sub-populations into the southern-western distributional range. (c) Large scale regional movements throughout the Tasman and Coral Seas from estimated tracks for all sharks (n = 8) that traversed to New Zealand. (d) Longitudinal positions by month for the 8 sharks that traversed east of the 160° longitude. Grey shading indicates the period between 01 November and 01 March; dotted horizontal line is at 01 January for each year; solid vertical lines bracket the coastal zones of Australia (150°E to 154°E) and New Zealand (167°E to 178°E). Maps were generated using the marmap package in R⁶⁷.