DanRhomberg
New member
STuPiD Youtube video blocker at work!!!:uzi:
I cant view...sounds cool.....i'll have to wait until I get home tonight...:sad1:
I cant view...sounds cool.....i'll have to wait until I get home tonight...:sad1:
What do you see?
- Thread starter MUCHO REEF
- Start date
listen2bob
- David
It appears in the first video that they maybe be reporducing. If you look closely they release small particles when they retract
XSharkboyX
Wishin' I Was Fishin'
I dont see that at all... perhaps its the resolution of my computer screen... I stand with my posts above... Something is def touching the polyps, whether its pods, tiny particulate matter or nematocysts from a nearby cnidarian.
jeff@zina.com
New member
My first thought on the first video was sweeper tentacles, my zoas react similar to some of my other corals when they get too close. But for me it's almost always at night. The second looked like mine do when they get target fed. Or when the peppermint shrimp tries to steal their food. 
Jeff
Jeff
Looked at this again and I still only see zoa's fighting for space in their usual daily ungelation. I posted a sweet vid on the coralmoriphorians(spelling?) page showing a tank's daily struggle for light, can't find the link anymore but it's worth the view for a bit of a better explanation of what I think is going on.
Found it:
http://www.youtube.com/watch?v=C69tfTP2UZM
Found it:
http://www.youtube.com/watch?v=C69tfTP2UZM
SIR PATRICK
New member
^ That video is tooo coool!!!
mallorieGgator
New member
Maybe the first video is a little war fare between whatever is next to the zoas and the zoas?
dublo8
New member
Typical mucho. Let us all dwell on it for a day and make us watch the video 15 more times so we are racking our brains trying to figure it out. Just tell us already! The suspense is killin me!
This looks like feeding responses to me. Similar to the same way a jellyfish moves. It creates water flow over there skirts and mouth to help gather more food.
Sent from my iPhone using Tapatalk
This looks like feeding responses to me. Similar to the same way a jellyfish moves. It creates water flow over there skirts and mouth to help gather more food.
Sent from my iPhone using Tapatalk
XSharkboyX
Wishin' I Was Fishin'
Anyone else want to discuss what they see?
Sure but tomorrow.
I try to post topics to create a discussion and exchange of ideas and opinions for everyone that will last for several days, not just 72 hours. Not everyone checks this forum everyday. I will disregard the above comment, "Typical Mucho ". :wavehand:
You guys/gals provided a ton of great info, wow, I would say only the videographer who was there and could see all that was transpiring in and around the tank can say for sure what was happening.
In my opinion, the videographer turned off all internal current in both videos which is why we see all suspended particulates floating by slowly. None of the skirts on any of the polyps are moving and I doubt very seriously that such robust polyps were achieved without said current.
I don't believe that the polyp retraction is a result of feeding upon zooplankton or DOM as zoanthid do not feed on Phytoplankton.
All zoanthids have a single ciliated slit ( mouth ) called a siphonoglyph.
I too thought they might be reacting to the vibration from the music, but don't think so.
In my opinion, what we are seeing is nothing more than a nervous impulse response buy some stimuli in or near them. I'm sure it was the invert in the first video waving it's tentacles. The nervous impulse is shared via their stolonic connective membrane. If you touch just one polyp on the far edge of a colony, watch what happens. Like a wave, the retraction spreads across the colony, yet only one polyp was disturbed.
The invert to the right of the screen is merely irritating the polyps and they are communicating that disturbance to the other polyps. You can wave your hand or and instrument over polyps or get too close to your glass, they will often exhibit the same retractive behavior. Ever passed your hand between a clam and the light source above it? The clam will react and begin to retract its mantle.
Notice only a few polyps completely retract, all the others exhibit a startled jumpy response, but only retract slightly, only to quickly expand again.
In the second video, notice within the first 6 seconds, the colony to the left is also exhibiting the same jerky response with no visible current. So what was irritating that colony, I have no idea, but it could very well have been the videographer or something else nearby outside of the frame that we can't see.
It's not about who's right, I could be wrong. I just thought I'd try to share something different. You guys were great and lots of good info you shared. Hope you enjoyed the videos.
Was good to see ficklefins and DanRhomberg posting again. Missed you guys.
Mucho Reef
You guys/gals provided a ton of great info, wow, I would say only the videographer who was there and could see all that was transpiring in and around the tank can say for sure what was happening.
In my opinion, the videographer turned off all internal current in both videos which is why we see all suspended particulates floating by slowly. None of the skirts on any of the polyps are moving and I doubt very seriously that such robust polyps were achieved without said current.
I don't believe that the polyp retraction is a result of feeding upon zooplankton or DOM as zoanthid do not feed on Phytoplankton.
All zoanthids have a single ciliated slit ( mouth ) called a siphonoglyph.
I too thought they might be reacting to the vibration from the music, but don't think so.
In my opinion, what we are seeing is nothing more than a nervous impulse response buy some stimuli in or near them. I'm sure it was the invert in the first video waving it's tentacles. The nervous impulse is shared via their stolonic connective membrane. If you touch just one polyp on the far edge of a colony, watch what happens. Like a wave, the retraction spreads across the colony, yet only one polyp was disturbed.
The invert to the right of the screen is merely irritating the polyps and they are communicating that disturbance to the other polyps. You can wave your hand or and instrument over polyps or get too close to your glass, they will often exhibit the same retractive behavior. Ever passed your hand between a clam and the light source above it? The clam will react and begin to retract its mantle.
Notice only a few polyps completely retract, all the others exhibit a startled jumpy response, but only retract slightly, only to quickly expand again.
In the second video, notice within the first 6 seconds, the colony to the left is also exhibiting the same jerky response with no visible current. So what was irritating that colony, I have no idea, but it could very well have been the videographer or something else nearby outside of the frame that we can't see.
It's not about who's right, I could be wrong. I just thought I'd try to share something different. You guys were great and lots of good info you shared. Hope you enjoyed the videos.
Was good to see ficklefins and DanRhomberg posting again. Missed you guys.
Mucho Reef
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XSharkboyX
Wishin' I Was Fishin'
"In my opinion, what we are seeing is nothing more than a nervous impulse response buy some stimuli in or near them. I'm sure it was the invert in the first video waving it's tentacles. The nervous impulse is shared via their stolonic connective membrane. If you touch just one polyp on the far edge of a colony, watch what happens. Like a wave, the retraction spreads across the colony, yet only one polyp was disturbed."
You may be right. We do not know what else is going on in or out of the tank... A background in science tells me to question everything.
I know we aren't seeing full polyp retraction in the first video, however, I am still convinced something is hitting the polyp tentacles, in turn causing the twitching responce. We see more of a full close in the second video.
http://www.youtube.com/watch?v=4xQtyGWGdOU&feature=related
^Take a look at these yellow polyps doing something similar... Everytime a particle of "food" touches a tentacle, the polyps twitch. A twitch could mean the particle was too small to feed on, the prey got away, its not what the polyp wanted, or a false alarm... When a polyp catches something, it closes on it instantly to force it towards the oral slit.
This can be seen with almost all cnidarians. Not quite the same thing, but similar, check out this anemone feeding below.
http://www.youtube.com/watch?v=C5jK4nij6Bs&feature=related
Then again, I could be wrong too.
You may be right. We do not know what else is going on in or out of the tank... A background in science tells me to question everything.
I know we aren't seeing full polyp retraction in the first video, however, I am still convinced something is hitting the polyp tentacles, in turn causing the twitching responce. We see more of a full close in the second video.
http://www.youtube.com/watch?v=4xQtyGWGdOU&feature=related
^Take a look at these yellow polyps doing something similar... Everytime a particle of "food" touches a tentacle, the polyps twitch. A twitch could mean the particle was too small to feed on, the prey got away, its not what the polyp wanted, or a false alarm... When a polyp catches something, it closes on it instantly to force it towards the oral slit.
This can be seen with almost all cnidarians. Not quite the same thing, but similar, check out this anemone feeding below.
http://www.youtube.com/watch?v=C5jK4nij6Bs&feature=related
Then again, I could be wrong too.
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Wow, excellent video of the yellows. But the difference is complete retraction in your video, true ( prey/capture ) behavior.
You could very well be right. The reason I don't think they are feeding in my video is this. If they are exhibiting this kind of response to food with little to no current, imagine just how much they would be firing with current. Hey, you could very well be right and I'm dead wrong. It's an opinion, but the nervous impulse is factual. I will try and dig up the info to share it.
Mucho
You could very well be right. The reason I don't think they are feeding in my video is this. If they are exhibiting this kind of response to food with little to no current, imagine just how much they would be firing with current. Hey, you could very well be right and I'm dead wrong. It's an opinion, but the nervous impulse is factual. I will try and dig up the info to share it.
Mucho
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XSharkboyX
Wishin' I Was Fishin'
Watch the polyps closely in the beggining of the video with the yellows. Pay close attention to the one in the center that pulses a few times before it captures its prey. Many of the polyps twitch, and open right back up, or just twitch a tentacle. As if something brushed them in the current.
The polyps in your video could very well be just nervously twitching... Or something could be hitting them... I guess we will never know for sure...
The polyps in your video could very well be just nervously twitching... Or something could be hitting them... I guess we will never know for sure...
Yeah I said tomorrow earlier but had a few minutes to watch.
My guess is a simple retraction due to a physical disturbance.
Reason: quick close and quick opening.
I was thinking along the lines of lateral lines of fish and how they react as one in a school.
One responds and other follow.
My guess is a simple retraction due to a physical disturbance.
Reason: quick close and quick opening.
I was thinking along the lines of lateral lines of fish and how they react as one in a school.
One responds and other follow.
Either way, it was a great discussion with lots of replies from just 2 videos.:thumbsup::thumbsup: 2 thumbs up peeps.
Kadufish, you're addicted like the rest of us, LOL:wave:
Kadufish, you're addicted like the rest of us, LOL:wave:
XSharkboyX
Wishin' I Was Fishin'
Agreed!:beer:
