Port Jackson Shark
Egg Laying Shark
- A spiral shaped eggcase is laid by the mother shark. The eggcase stays underwater while the baby develops.
- The yolk gives the baby all that it needs to grow inside the eggcase.
- When the baby is ready to emerge from the eggcase it pushes its way out into the sea.
- The pup finds its own food and grows into an adult.
The eggcase keeps the baby shark safe.
Inside the egg
The yellow yolk gives the baby everything it needs to develop into a pup.
When the pup emerges it can live on its own.
The dorsal fins help protect it from predators.
Is this a dangerous shark?
The Port Jackson Shark eats crustaceans(shellfish) from the bottom of the sea.
It has strong crushing jaws with only some sharp teeth and crushing plates. Keep your hands away and it won't hurt you.
On its dorsal fins there are spikes to protect it from being harmed. Divers or fishermen could be hurt if they bump these pointy spines.
The Port jackson Shark would rather swim away than hurt anyone.
Port Jackson Shark video by Shark Jackson
Start-2:20 Eggs on shore
2:20-3:30 Jervis Bay
9:30min-10:42 eggs underwater
14:50 Nursery egg yolk, gills 16:15 leaving the egg -17:25
17:25-18:20 predator protection
crustacean = shellfish = food
embryo = baby not able to live on its own
pup = baby shark
yolk= food for embryo