Please identify invert

reefinallday · 01/07/2007, 11:29 AM

Found underneath some live rock

SDguy · 01/07/2007, 11:32 AM

Baby crown of thorns sea star?? Is that even possible?

Paintbug · 01/07/2007, 11:42 AM

looks like an Upside Down Jellyfish (thats what its called) from the top pic but i no where near 100% sure thats what it is after looking at the bottom. looks very much like a starfish. interesting!

JokerGirl · 01/07/2007, 11:44 AM

It really does look like a crown of thorns sea star.....

They're trying to erradicate those things because they're destroying the reefs.

JokerGirl · 01/07/2007, 11:49 AM

PS, they are venomous so be careful in case it is.

JokerGirl · 01/07/2007, 11:49 AM

PS, they are venomous so be careful in case it is.

Lev F. · 01/07/2007, 11:50 AM

It's a Crown of Thorns. Acanthaster planci. It is possible to get these guys on LR, where is your LR from? Careful, they have poisonous spines, and if you value your corals, you'd remove it. (I'd keep it, but it's just me)

brc0488 · 01/07/2007, 11:58 AM

it's a crown of thorns.... u cant keep one unless u want to feed it corals...

Lev F. · 01/07/2007, 12:07 PM

That's when cheap frags come in handy!

reefinallday · 01/07/2007, 01:05 PM

hi posionous to humans? cause it did ***** me
still alive lol .
I lave live rock from everywhere

reefinallday · 01/07/2007, 01:06 PM

thanks forthe info, guess i should feed it

Boomer · 01/07/2007, 01:33 PM

Here is some good info

http://www.sbg.ac.at/ipk/avstudio/pi...nci/planci.htm

JokerGirl · 01/07/2007, 01:37 PM

In a way, the fact that this was found on some live rock worries me. Don't need it to start proliferating within the hobby!

Xirxes23 · 01/07/2007, 01:38 PM

Before everyone starts hating on these things, please consider that the verdictis still out as to wether or not these things are truly destroying the reef.

True they eat corals. But the issue that has not been established yet is whether or not they have been established at their present density in the wild for a long time, and we are just now noticing that they are there in the numbers we are seeing? Or is it that the population is on the upswing and they truly are destroying the reefs? I do not believe that there is enough data to present a decent argument that these creatures' population is exploding and the reefs are all in danger.

Just get a little bothered when the community decides to eradicate anything in the wild.

SDguy · 01/07/2007, 01:47 PM

There was a very interesting show about this on the Science Channel, I believe. Most the the questions you mentioned have been answered pretty thoroughly.

Boomer · 01/07/2007, 02:24 PM

I do not believe that there is enough data to present a decent argument that these creatures' population is exploding and the reefs are all in danger.

This is not true there is plenty of data on it. A few years back there was an article is American Scientist. Two of the the biggest reasons was the reduction of Giant Triton mollusks population, which feds on them, due to human collecting of this mollusks for mantle-top souvenirs. Second, when the reef devastation started many local fisherman, to protect the reef, went out an collected these star fish. Little did they know, at the time, that cutting them up into many pieces and throwing them back into the ocean, greatly increased their population density, due to regeneration of the severed body parts. Allot of this took place in the 80's

Here is some more info on reasons for destruction.

http://www.aims.gov.au/pages/about/c...nt-triton.html

JokerGirl · 01/07/2007, 02:31 PM

I saw the same show SDguy. Was pretty interesting.

SDguy · 01/07/2007, 02:49 PM

Quote:

Originally posted by JokerGirl
I saw the same show SDguy. Was pretty interesting.

Yeah, especially the part about higher levels of algae in the water leading to something like an 80% survival rate of baby stars. Just crazy!

JokerGirl · 01/07/2007, 02:59 PM

I thought it was interesting how they had special diver teams going out to inject poison into the stars. It'd be like finding a needle in a haystack for me!

SDguy · 01/07/2007, 03:04 PM

But imagine if your current job provided such wonderful scenery...ahh, to dream....

JokerGirl · 01/07/2007, 03:08 PM

So very very true... I'd be in heaven.

greenbean36191 · 01/07/2007, 06:03 PM

Quote:

There was a very interesting show about this on the Science Channel, I believe. Most the the questions you mentioned have been answered pretty thoroughly.

A lot of those shows only present a very limited view of the issue. Almost every show I've seen on the subject would have you believe that we know that nutrification of the water is leading to outbreaks with increasing frequency and severity and that the stars are doing unprecedented and irreversible damage. Pretty much all of that is still being heavily debated. Prior to the outbreak in the 1980s there was pretty much no one studying COTS. We've only got two well documented outbreak periods to look at so we have pretty much no historical background to say whether the outbreaks are natural cycles or not. We don't know how often these outbreaks occured before the 1980's, how severe they were, what kind of damage the stars did etc.

SDguy · 01/07/2007, 06:13 PM

Actually the show was very balanced. Did you see it? It simply stated various findings/possibilities, along with various sides of the political/ecological debate.

01/07/2007, 11:29 AM	#1
reefinallday Moved On Join Date: Sep 2005 Posts: 71	Please identify invert Found underneath some live rock

01/07/2007, 11:32 AM	#2
SDguy Fish heads unite! Join Date: Mar 2003 Location: San Diego Posts: 23,384	Baby crown of thorns sea star?? Is that even possible? __________________ Peter SDMAS member Marine tanks since 1989. ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> ·´¯`·.¸. , . .·´¯`·.. ><((((º> Current Tank Info: 240g butterfly and angel FOWLR. 15g QT.

01/07/2007, 11:42 AM	#3
Paintbug Registered Member Join Date: Mar 2005 Location: Stoneville, NC Posts: 6,169	looks like an Upside Down Jellyfish (thats what its called) from the top pic but i no where near 100% sure thats what it is after looking at the bottom. looks very much like a starfish. interesting! __________________ Never ask a girl over to see your crabs!! <-Tony-> Current Tank Info: NONE currently

01/07/2007, 11:44 AM	#4
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	It really does look like a crown of thorns sea star..... They're trying to erradicate those things because they're destroying the reefs. __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 11:49 AM	#5
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	PS, they are venomous so be careful in case it is. __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 11:50 AM	#7
Lev F. Registered Member Join Date: Nov 2004 Location: Ontario, Canada Posts: 1,109	It's a Crown of Thorns. Acanthaster planci. It is possible to get these guys on LR, where is your LR from? Careful, they have poisonous spines, and if you value your corals, you'd remove it. (I'd keep it, but it's just me) __________________ - Lev "It all starts with a small freshwater aquarium. Then it turns into miniature estuaries on the carpet, and an afterwards fragrance that has the power to kill anything that's ever lived" Current Tank Info: 65 Gallon Mixed Reef Tankh. 96 Watt COralife Aqualight PCS, 20 Gallon Refugium with A. Nummifer frogfish, 40 Gallon Octopus tank

01/07/2007, 11:58 AM	#8
brc0488 Registered Member Join Date: Jan 2004 Location: maryland, Columbia Posts: 682	it's a crown of thorns.... u cant keep one unless u want to feed it corals... __________________ Brandon Current Tank Info: 55 gallon- 2-55 watt PC's, 1 250 w MH, 10 gal sump w/ Nautilus TE skimmer

01/07/2007, 12:07 PM	#9
Lev F. Registered Member Join Date: Nov 2004 Location: Ontario, Canada Posts: 1,109	That's when cheap frags come in handy! __________________ - Lev "It all starts with a small freshwater aquarium. Then it turns into miniature estuaries on the carpet, and an afterwards fragrance that has the power to kill anything that's ever lived" Current Tank Info: 65 Gallon Mixed Reef Tankh. 96 Watt COralife Aqualight PCS, 20 Gallon Refugium with A. Nummifer frogfish, 40 Gallon Octopus tank

01/07/2007, 01:05 PM	#10
reefinallday Moved On Join Date: Sep 2005 Posts: 71	hi posionous to humans? cause it did ***** me still alive lol . I lave live rock from everywhere

01/07/2007, 01:06 PM	#11
reefinallday Moved On Join Date: Sep 2005 Posts: 71	thanks forthe info, guess i should feed it

01/07/2007, 01:33 PM	#12
Boomer Bomb Technician (EOD) Join Date: Aug 2002 Location: Duluth, Minnesota Posts: 11,842	Here is some good info http://www.sbg.ac.at/ipk/avstudio/pi...nci/planci.htm __________________ If you See Me Running You Better Catch-Up Seawater Chemistry, Geology, ID Marine Life, Collecting Science Books, Explosives Technology, Audiophile An explosion can be defined as a loud noise, accompanied by the sudden going away of things, from a place where they use to be.

01/07/2007, 01:37 PM	#13
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	In a way, the fact that this was found on some live rock worries me. Don't need it to start proliferating within the hobby! __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 01:38 PM	#14
Xirxes23 Registered Member Join Date: May 2006 Location: San Diego Posts: 607	Before everyone starts hating on these things, please consider that the verdictis still out as to wether or not these things are truly destroying the reef. True they eat corals. But the issue that has not been established yet is whether or not they have been established at their present density in the wild for a long time, and we are just now noticing that they are there in the numbers we are seeing? Or is it that the population is on the upswing and they truly are destroying the reefs? I do not believe that there is enough data to present a decent argument that these creatures' population is exploding and the reefs are all in danger. Just get a little bothered when the community decides to eradicate anything in the wild.

01/07/2007, 01:47 PM	#15
SDguy Fish heads unite! Join Date: Mar 2003 Location: San Diego Posts: 23,384	There was a very interesting show about this on the Science Channel, I believe. Most the the questions you mentioned have been answered pretty thoroughly. __________________ Peter SDMAS member Marine tanks since 1989. ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> ·´¯`·.¸. , . .·´¯`·.. ><((((º> Current Tank Info: 240g butterfly and angel FOWLR. 15g QT.

01/07/2007, 02:24 PM	#16
Boomer Bomb Technician (EOD) Join Date: Aug 2002 Location: Duluth, Minnesota Posts: 11,842	I do not believe that there is enough data to present a decent argument that these creatures' population is exploding and the reefs are all in danger. This is not true there is plenty of data on it. A few years back there was an article is American Scientist. Two of the the biggest reasons was the reduction of Giant Triton mollusks population, which feds on them, due to human collecting of this mollusks for mantle-top souvenirs. Second, when the reef devastation started many local fisherman, to protect the reef, went out an collected these star fish. Little did they know, at the time, that cutting them up into many pieces and throwing them back into the ocean, greatly increased their population density, due to regeneration of the severed body parts. Allot of this took place in the 80's Here is some more info on reasons for destruction. http://www.aims.gov.au/pages/about/c...nt-triton.html

01/07/2007, 02:31 PM	#17
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	I saw the same show SDguy. Was pretty interesting. __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 02:59 PM	#19
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	I thought it was interesting how they had special diver teams going out to inject poison into the stars. It'd be like finding a needle in a haystack for me! __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 03:04 PM	#20
SDguy Fish heads unite! Join Date: Mar 2003 Location: San Diego Posts: 23,384	But imagine if your current job provided such wonderful scenery...ahh, to dream.... __________________ Peter SDMAS member Marine tanks since 1989. ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> ·´¯`·.¸. , . .·´¯`·.. ><((((º> Current Tank Info: 240g butterfly and angel FOWLR. 15g QT.

01/07/2007, 03:08 PM	#21
JokerGirl Whistler's Mother Join Date: Nov 2006 Location: That place Posts: 1,345	So very very true... I'd be in heaven. __________________ 01000001 01101110 01111001 01101111 01101110 01100101 00111111 Current Tank Info: 120g Reef Tank, 60g Cube Mantis/Reef Tank, Want more info, ask me.

01/07/2007, 06:13 PM	#23
SDguy Fish heads unite! Join Date: Mar 2003 Location: San Diego Posts: 23,384	Actually the show was very balanced. Did you see it? It simply stated various findings/possibilities, along with various sides of the political/ecological debate. __________________ Peter SDMAS member Marine tanks since 1989. ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> ·´¯`·.¸. , . .·´¯`·.. ><((((º> Current Tank Info: 240g butterfly and angel FOWLR. 15g QT.