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Keywords:

  • deep diving;
  • dive behaviour;
  • foraging;
  • migration;
  • ocean stratification;
  • satellite tagging

A whale shark Rhincodon typus satellite tagged off the coast of Mozambique showed a highly directional movement across the Mozambique Channel and around the southern tip of Madagascar, a minimum distance of 1200 km in 87 days. Dives to depths well into the mesopelagic and bathypelagic zones (1286 m maximum depth) were recorded in a bathymetrically non-constraining habitat. The water temperature range recorded during the fish’s movement was 3·4–29·9° C.