DiscoverWord on the ReefS2 E22: Dammed if you Don't: Saving Fish from Migration Mayhem
S2 E22: Dammed if you Don't: Saving Fish from Migration Mayhem

S2 E22: Dammed if you Don't: Saving Fish from Migration Mayhem

Update: 2025-08-01
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Did you know some of our marine fish are living DOUBLE LIVES? That’s right, they want the best of both worlds, saltwater and freshwater. So one minute they’re living the dream on a beautiful coral reef, next minute they’ve decided they need a tree change, and they’re swimming up into our rivers. What are they doing there? And importantly – what happens when humans build dams, causeways and other watery traffic jams that block these fish from finishing their migration missions?

Thumbnail Image: Sean and colleague using electrofishing to capture fish for research purposes in New Zealand. Note: Do not attempt this in crocodile inhabited waters in Far North Queensland!

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S2 E22: Dammed if you Don't: Saving Fish from Migration Mayhem

S2 E22: Dammed if you Don't: Saving Fish from Migration Mayhem

Tanya Murphy