PDA

View Full Version : coral spawn???



Dignity
07-11-2013, 05:11 PM
Now I thought that coral spawned on the full moon but in the last few days there has been heaps of it floating around, is it because of climate change or is it sewerage from ships disguised as coral spawn or is it something else altogether :) it certainly smells like coral spawn.

ifishcq1
07-11-2013, 06:49 PM
a few days after the full moon around 21st-23rd November this year
most of what we get is scum as the reef purges itself when water temp is over 25C

cheers

Spiderpig
07-11-2013, 08:02 PM
I was told by a local researcher last year that it is actually not coral spawn. They said it was actually an algae.

cuzzamundi
07-11-2013, 08:19 PM
Could be Trichodesium. That's a typical algal bloom. Leaves trails of brown shit in about the top five metres of the water column, and stinks accordingly.

Cuzza

Dan5
07-11-2013, 08:30 PM
Yep if it's that brown smelly stuff it's algae.........Lots of people think its coral spawn.

Dan

Daintreeboy
07-11-2013, 08:34 PM
My bet without seeing pictures is that it is Trichodesmium. We see it all the time up this way and it is mistaken for Coral Spawn often.

ifishcq1
07-11-2013, 08:47 PM
yeah you are all right but the coral does spawn in Nov and it does look similar to reef scum/algea except it starts out orange looking where the algea is green and stinks almost straight away
like I said the reef gets rid of algea/scum at 25degrees waterv temp or more

Daintreeboy
07-11-2013, 10:00 PM
Yes but Trichidesmium is an orange brown colour which is why it is also referred to as sea sawdust. Without photos I can't say for sure but its a possibility.

http://en.wikipedia.org/wiki/Trichodesmium

Crunchy
08-11-2013, 06:08 AM
Actually it's Fukishima radiation

Dignity
08-11-2013, 07:17 AM
Thanks guys, is this Trichidesmium/algae becoming more common, maybe my memory is bad but 10 years ago I don't recall seeing much of it at all.

cuzzamundi
08-11-2013, 12:57 PM
Yeah, Dignity - seems to be the case. I reckon it's due to run off pollutants from urban development. Much more crap entering our waters, now. They reckon certain pollutants and fertilizers can be catalysts for the blooms.

Cuzza