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Norfolk's Giant Tiger Sharks Feast on Island Secrets
20 Sep
Summary
- Tiger sharks around Norfolk Island are among the world's largest, with males and females reaching over 4 meters.
- Their diet consists mainly of seabirds, with only a small percentage from livestock offal.
- Despite their size, Norfolk Island tiger sharks are considered placid and have no recorded fatalities.
The pristine waters surrounding Norfolk Island host exceptionally large tiger sharks, with studies revealing individuals frequently exceeding 4 meters. This South Pacific outcrop, located 1400 kilometers from the Australian mainland, provides an ideal environment for these apex predators to grow old and large. Their diet is surprisingly varied, consisting mainly of seabirds, followed by turtles, sea snakes, and fish, with livestock offal playing a minor role.
Researchers have noted that the tiger shark population around Norfolk Island is remarkable for its size and the abundance of large individuals, attributing this to their age and the availability of nutritious prey. Interestingly, despite their formidable size, these sharks are described by locals and researchers as placid and timid, with no recorded fatalities attributed to them on the island.
Tiger sharks are predominantly observed around Norfolk Island between October and April, undertaking extensive migrations across the region, including to New Zealand and the Great Barrier Reef. Other shark species, like dusky and Galapagos whaler sharks, inhabit the waters year-round, attracted to fishing piers by discarded scraps.
