Eel Life Cycle Stages
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Eel Life Cycle Stages
Fact file: the longfin eel
New Zealand longfin eels live for many years in freshwater streams, rivers and lakes. When they are ready to reproduce, adult eels travel downstream and far out into the Pacific Ocean. This long journey is called migration. They spawn in the ocean: females release eggs and males release sperm. The eggs hatch into tiny, see-through larvae with flat, leaf-shaped bodies. Ocean currents carry the larvae towards New Zealand. As they change shape, they become glass eels, then small elvers. Elvers enter rivers and grow into juvenile eels. After many years, they become adults and may make the ocean journey to begin the cycle again. Scientists know a lot about this journey, but the exact spawning place has not been observed.
- In a freshwater stream
- In the Pacific Ocean
- On a riverbank
- Ocean currents carry them
- They walk along the seabed
- Adult eels carry them in their mouths
- Larva
- Elver
- Adult
- Small young eel that enters rivers
- Tiny stage that hatches from an egg
- Fully grown eel
3 printable pages
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