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Hundreds of green ‘alien eggs’ have washed up on Dee Why Beach and may be living algae

Home > Articles > Hundreds of green ‘alien eggs’ have washed up on Dee Why Beach and may be living algae
Hundreds of green ‘alien eggs’ have washed up on Dee Why Beach and may be living algae

Hundreds of unidentified floating objects have washed up on Dee Why Beach, causing locals to ask whether the green, furry balls are alien eggs, Japanese moss balls or some kind of tennis nightmare.

green alien eggs australia beach

Roxy Rogan of Allambie checking out the balls. Picture: Martin Lange

Dee Why Surf Life Saving Club patrol member Rae-Maree Hutton said she came across the unusual site on her morning walk.

“I didn’t want to touch one because you never know what can sting you on the beach, but I did poke it with my toes and it’s squishy, like a sponge,” Ms Hutton.

“They look like alien eggs or something.”

Narraweena resident Jenny Zhang said she walked the beach every day and had never seen anything like it.

“About three days ago, there were a few egg-shaped balls but then today, they were much bigger and everywhere on the beach,” Ms Zhang said.

green alien eggs

Hundreds of weird green balls have washed up at Dee Why and Long Reef beaches. Picture: Martin Lange

“I tried to search on the internet but there was no information.

“They look like Japanese moss balls but they’re not made of moss, maybe seaweed.”

The green visitors follow hot on the heels of small bioluminescent marine animals that turned Manly and Newport beaches blue at the end of August.

For Allambie Heights resident Roxie Rogan, the balls prompted a bit of beach sport.

Bioluminescent

Bioluminescent marine creatures gave Manly and Newport beaches a strange glow last month. Picture: Joel Coleman / Saltmotion Gallery.

“People were kicking them like soccer balls,” Ms Rogan said.

“There were a lot of people looking at them.”

University of NSW School of Biological, Earth and Environmental Sciences associate professor Alistair Poore said the balls were most likely living green algae.

“They’re pretty interesting,” Mr Poore said.

“I’ve seen similar things — sometimes dead sea grass can roll around and form balls like underwater tumbleweeds but that’s made of dead material and these look to be living.”

“I think you’d find that they’re very likely to be the green algae.

“It is a habit known as ‘aegagropilious’, where the alga is free living (not on rocks) and forms into spherical balls.”

green alien eggs shaped balls Australia


WHAT DO YOU THINK?

What do you reckon these are?

The Royal Botanic Gardens and Domain Trust’s Alan Millar said the algae balls made their way to the beach via the right conditions.

“(It’s) clearly another response to spring sunshine, and just the right wave conditions to tumble them,” Mr Millar said.

“Obviously these biophysical conditions do not align every spring to produce these balls.”

 

© CAYLA DENGATE 20.09.2014    Australia

 

 
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