4/11/2006: Glowing waves

Undertoad · 04-11-2006, 01:21 PM

Today's Earth Sci Pic of the Day is a nice one and an interesting one - one that would freak me out to death if I saw it live and wasn't aware of the phenomenon.

In the background is La Jolla cove, California. Apparently a summer of long warm weather and smooth sea encourages the growth of certain algae. Bioluminescent dinoflagellates, they say, make the water red at day and show flashes of green at night. Just another reason to generally avoid the ocean, because it's scary.

glatt · 04-11-2006, 01:25 PM

That's really neat. I'd love to see that in person.

Elspode · 04-11-2006, 01:41 PM

Are we pretty sure that a container load of glow sticks didn't wash overboard from a Hong Kong cargo ship?

Slothboy · 04-11-2006, 01:45 PM

I've been on the beach in Oregon when there was bioluminescence. There wasn't so much that the waves were glowing but if you walked or dragged your feet on the wet sand you would get the bursts of light and trails and etc. It was crazy as hell. I'd never heard of this at the time and if I hadn't seen it I never would have believed it.

barefoot serpent · 04-11-2006, 02:24 PM

Very cool. And it can even 'out-glow' San Diego (in the background).

mlandman · 04-11-2006, 02:39 PM

has a couple of coves that put this to shame. Looking for the link, can't find it right now. But long story short it's a VERY popular excursion for some of the cruise ships -- you kayak out to this cove when there is a timeframe at night with little to no moonlight so it is very dark, and it is one of the coolest phenomenon you will ever see.

I've seen pictures on the website (still looking for the link) that are amazing, and I've spoke to people that went there that described it --- sounds absolutely amazing.

See? And you guys thought the only thing I did her in the cellar was post negative commentary re: people wasting taxpayer dollars on silly stuff.

chrisinhouston · 04-11-2006, 06:03 PM

I'm going to guess that this was a digital image because of all the "noise" throughout the image. Pretty amazing though as it is quite sharp and seems to have been composed well.

There may be a scientific reason but I thought of the movie, "The Abyss"!

ferret88 · 04-11-2006, 06:15 PM

Quote:

Originally Posted by Elspode

Are we pretty sure that a container load of glow sticks didn't wash overboard from a Hong Kong cargo ship?

NoBarkDawg · 04-11-2006, 06:38 PM

Call me crazy, but I don't think that's a bunch of little underwater aliens that learned to control water... Though on the far right it does look like a bunch of underwater lights are turned on. Still don't think it's an alien conspiracy though.

xoxoxoBruce · 04-11-2006, 06:59 PM

That must be bright for the camera to capture it.
Well, there's good news and bad news......
The good news is they make pretty waves at night.
The bad news is;

Quote:

Besides being important primary producers, and therefore an important part of the food chain, dinoflagellates are also known for producing nasty toxins, particularly when they occur in large numbers, called "red tides" because the cells are so abundant they make the water change colour.

Besides being bad for a large range of marine life, red tides can also introduce non-fatal or fatal amounts of toxins into animals (particularly shellfish) that may be eaten by humans, who are also affected by the toxins. Many of these toxins are quite potent, and if not fatal, can still cause neurological and all sorts of other nasty effects.

Add this to the rather ominous suspicion that red tides may be more common thanks to human inputs of phosphates and warmer global temperatures, and you can probably see why we have a vested interest in finding out more about them - both medical and economic.

Wombat · 04-11-2006, 08:03 PM

I once went skinny dipping with a "close friend" on a night when there was luminescent plankton in the water. Every movement made the plankton light up the shape of our bodies. Now THAT was an awesome experience!

milkfish · 04-11-2006, 08:55 PM

There's a web site that tells you how you can buy your own bioluminescent dinoflagellates and do experiments with them. I'm almost tempted.

Karenv · 04-11-2006, 10:31 PM

I used to live in Northern California and we would go to the very rocky beaches in Sonoma County, where 20 foot breakers would glow green with the phosphorescence. It was wonderful. And your footsteps would glow as you walked in the wet sand.

I had a patient who had chronic eczema. Went swimming in one of those San Juan PR coves full of bioluminescent organisms and it went away for quite a while. Seems they are full of Vitamin B12.

Elspode · 04-11-2006, 10:44 PM

How many of them did she have to consume?

ashke · 04-11-2006, 11:20 PM

Wow, I've only heard of it but never saw the pictures (or thought to search for it). This is really cool =D

04-11-2006, 01:21 PM	#1
Undertoad Radical Centrist Join Date: Jan 2001 Location: Cottage of Prussia Posts: 31,423	4/11/2006: Glowing waves Today's Earth Sci Pic of the Day is a nice one and an interesting one - one that would freak me out to death if I saw it live and wasn't aware of the phenomenon. In the background is La Jolla cove, California. Apparently a summer of long warm weather and smooth sea encourages the growth of certain algae. Bioluminescent dinoflagellates, they say, make the water red at day and show flashes of green at night. Just another reason to generally avoid the ocean, because it's scary.

04-11-2006, 01:41 PM	#3
Elspode When Do I Get Virtual Unreality? Join Date: Dec 2002 Location: Raytown, Missouri Posts: 12,719	Are we pretty sure that a container load of glow sticks didn't wash overboard from a Hong Kong cargo ship? __________________ "To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog

04-11-2006, 01:45 PM	#4
Slothboy *No known superpowers. Join Date: Apr 2004 Location: Oregon Posts: 48	I've been on the beach in Oregon when there was bioluminescence. There wasn't so much that the waves were glowing but if you walked or dragged your feet on the wet sand you would get the bursts of light and trails and etc. It was crazy as hell. I'd never heard of this at the time and if I hadn't seen it I never would have believed it. __________________ Super perfundo on the early eve of your day.

04-11-2006, 02:39 PM	#6
mlandman Coronation Incarnate Join Date: Dec 2001 Posts: 87	San Juan, PR has a couple of coves that put this to shame. Looking for the link, can't find it right now. But long story short it's a VERY popular excursion for some of the cruise ships -- you kayak out to this cove when there is a timeframe at night with little to no moonlight so it is very dark, and it is one of the coolest phenomenon you will ever see. I've seen pictures on the website (still looking for the link) that are amazing, and I've spoke to people that went there that described it --- sounds absolutely amazing. See? And you guys thought the only thing I did her in the cellar was post negative commentary re: people wasting taxpayer dollars on silly stuff.

04-11-2006, 08:03 PM	#11
Wombat (marsupial with backward-facing pouch) Join Date: Oct 2004 Location: Canberra Posts: 251	I once went skinny dipping with a "close friend" on a night when there was luminescent plankton in the water. Every movement made the plankton light up the shape of our bodies. Now THAT was an awesome experience! __________________ If you don't do it properly, you'll get to the pub sooner.

04-11-2006, 01:25 PM	#2
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	That's really neat. I'd love to see that in person.

04-11-2006, 02:24 PM	#5
barefoot serpent go ahead, abbrev. it Join Date: Jun 2005 Location: Lawrence, KS Posts: 2,623	Very cool. And it can even 'out-glow' San Diego (in the background).

04-11-2006, 06:03 PM	#7
chrisinhouston Professor Join Date: Sep 2001 Location: Houston TX Posts: 1,857	I'm going to guess that this was a digital image because of all the "noise" throughout the image. Pretty amazing though as it is quite sharp and seems to have been composed well. There may be a scientific reason but I thought of the movie, "The Abyss"!

04-11-2006, 06:38 PM	#9
NoBarkDawg I probably have to pee Join Date: Apr 2006 Location: Kentucky Posts: 29	Call me crazy, but I don't think that's a bunch of little underwater aliens that learned to control water... Though on the far right it does look like a bunch of underwater lights are turned on. Still don't think it's an alien conspiracy though.

04-11-2006, 08:55 PM	#12
milkfish A serene breakdown Join Date: Dec 2005 Location: Northern NJ, USA Posts: 266	There's a web site that tells you how you can buy your own bioluminescent dinoflagellates and do experiments with them. I'm almost tempted.

04-11-2006, 10:31 PM	#13
Karenv Slacker Join Date: May 2004 Location: Brooklyn, NY Posts: 144	I used to live in Northern California and we would go to the very rocky beaches in Sonoma County, where 20 foot breakers would glow green with the phosphorescence. It was wonderful. And your footsteps would glow as you walked in the wet sand. I had a patient who had chronic eczema. Went swimming in one of those San Juan PR coves full of bioluminescent organisms and it went away for quite a while. Seems they are full of Vitamin B12.

04-11-2006, 10:44 PM	#14
Elspode When Do I Get Virtual Unreality? Join Date: Dec 2002 Location: Raytown, Missouri Posts: 12,719	How many of them did she have to consume? __________________ "To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog

04-11-2006, 11:20 PM	#15
ashke Don't look at me! Join Date: Sep 2004 Location: Singapore Posts: 288	Wow, I've only heard of it but never saw the pictures (or thought to search for it). This is really cool =D

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