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Study Estimates Up to 2.8 Million Eels Near Tasmania

The gathering was already known, but researchers have now estimated its possible size.

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Science news editorial illustration for Researchers Estimate Millions of Eels Gather Off Tasmania

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Source: ABC News Australia, 2026-10-28.

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Read and understand · 1/3What did researchers estimate about the known eel gathering?

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Its maximum possible size. The study estimates that the gathering may contain as many as 2.8 million eels.

Clue: A team led by Australia's science agency CSIRO has estimated the size of an extraordinary gathering of basketwork eels near Patience Seamount, an underwater mountain off Tasmania. The researchers say it may contain as many as 2.8 million eels.

Read and understand · 2/3Why did the team combine sound surveys with camera images?

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To distinguish eels from other fish. Camera images helped researchers distinguish the eels from other fish.

Clue: They combined sound surveys with underwater camera images to distinguish the eels from other fish. The study provides evidence that the eels gather to reproduce, although why they choose this particular location remains unclear.

Read and understand · 3/3What remains unclear about the eels?

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Why they choose this particular location. The researchers do not yet know why the eels choose this particular location.

Clue: They combined sound surveys with underwater camera images to distinguish the eels from other fish. The study provides evidence that the eels gather to reproduce, although why they choose this particular location remains unclear.

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Explain how the researchers studied the eels and name one question that remains.

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They combined sound surveys with underwater images to distinguish the eels from other fish. Why the eels choose this location remains unclear.

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