Surprising, but true

Perhaps I'm wrong and there's another explanation, but I've noticed all
my corals respond to time of day rather the tank lights. I thought it
might have been a learned reaction, that they could actually anticipate
the lights going off, but they have ignored the changes I made for the
switch from daylight saving time. At 6 a.m. they begin to open; at only
4 p.m., they start closing in although one of their lights doesn't go
off until 6 and the other at 7. I think I'll adjust the lights to them
and whatever they perceive as day and night. Has anyone else noticed
this kind of behavior, this independence from our definition of waking
hours?

Ruth Kazez

Some of my corals will begin to retract several hours before the lights go out.
Mushrooms seem to be only able to handle it so long, then they are ready to rest
apparently.

Set the lighting to your schedule, and let the reeflings find the schedule they
like within that parameter.

Marc


rtk wrote:

> Perhaps I'm wrong and there's another explanation, but I've noticed all
> my corals respond to time of day rather the tank lights. I thought it
> might have been a learned reaction, that they could actually anticipate
> the lights going off, but they have ignored the changes I made for the
> switch from daylight saving time. At 6 a.m. they begin to open; at only
> 4 p.m., they start closing in although one of their lights doesn't go
> off until 6 and the other at 7. I think I'll adjust the lights to them
> and whatever they perceive as day and night. Has anyone else noticed
> this kind of behavior, this independence from our definition of waking
> hours?
>
> Ruth Kazez

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

Hello reefers

I find this thread most interesting. Maybe I can help. I'm a freshwater guy
myself and might be totally off the mark but have a read anyways.

Someone took a clam from the ocean and drove home with it (far inland and
higher altitude) to put it in their tank. The experiment was to see if the
clam would respond to the ocean tide at the same time as the clams in the
ocean. The clam in the tank did open up but at a completely different time
from the clams in the sea!!. They figured out that the clam in the tank had
adjusted itself to opening to the tide if the ocean was at that level
inland. In other words it knew that it was at a higher altitude and worked
out that the tide would be coming in or out at this particular time if the
ocean was at this level!

This might be what your anemones are doing, they're adjusting according to
tides not light cycles. Perhaps you should try and match your light cycles
according to the tank inhabitants and not the other way around. It
completely freaks me out just how complex these wee critters can be. Cool
hey?

Regards
Cam

Go back to your freshwater group. Your speculation is wrong.

YRT

"Happy'Cam'per" <> wrote in message
news:bnj7go$lk6$...
Hello reefers

I find this thread most interesting. Maybe I can help. I'm a freshwater guy
myself and might be totally off the mark but have a read anyways.

Someone took a clam from the ocean and drove home with it (far inland and
higher altitude) to put it in their tank. The experiment was to see if the
clam would respond to the ocean tide at the same time as the clams in the
ocean. The clam in the tank did open up but at a completely different time
from the clams in the sea!!. They figured out that the clam in the tank had
adjusted itself to opening to the tide if the ocean was at that level
inland. In other words it knew that it was at a higher altitude and worked
out that the tide would be coming in or out at this particular time if the
ocean was at this level!

This might be what your anemones are doing, they're adjusting according to
tides not light cycles. Perhaps you should try and match your light cycles
according to the tank inhabitants and not the other way around. It
completely freaks me out just how complex these wee critters can be. Cool
hey?

Regards
Cam

Lisa,

What is your opinion based on?

Ed

"Lisa" <> wrote in message
news:3Nbnb.15$...
> Go back to your freshwater group. Your speculation is wrong.
>
> YRT
>
> "Happy'Cam'per" <> wrote in message
> news:bnj7go$lk6$...
> Hello reefers
>
> I find this thread most interesting. Maybe I can help. I'm a freshwater
guy
> myself and might be totally off the mark but have a read anyways.
>
> Someone took a clam from the ocean and drove home with it (far inland and
> higher altitude) to put it in their tank. The experiment was to see if the
> clam would respond to the ocean tide at the same time as the clams in the
> ocean. The clam in the tank did open up but at a completely different time
> from the clams in the sea!!. They figured out that the clam in the tank
had
> adjusted itself to opening to the tide if the ocean was at that level
> inland. In other words it knew that it was at a higher altitude and worked
> out that the tide would be coming in or out at this particular time if the
> ocean was at this level!
>
> This might be what your anemones are doing, they're adjusting according to
> tides not light cycles. Perhaps you should try and match your light cycles
> according to the tank inhabitants and not the other way around. It
> completely freaks me out just how complex these wee critters can be. Cool
> hey?
>
> Regards
> Cam
>
>
>

All of the speculation in his post, the fact that he is not in the hobby of
reefs, my years of living on the beach, diving the reef and 8 years of being
in the reef hobby myself...oh, and 3 years of reading King Marc's wonderful
posts .

Oh, I almost forgot -trolling.

YRT


"Adam" <> wrote in message
news:...
Lisa,

What is your opinion based on?

Ed

"Lisa" <> wrote in message
news:3Nbnb.15$...
> Go back to your freshwater group. Your speculation is wrong.
>
> YRT
>
> "Happy'Cam'per" <> wrote in message
> news:bnj7go$lk6$...
> Hello reefers
>
> I find this thread most interesting. Maybe I can help. I'm a freshwater
guy
> myself and might be totally off the mark but have a read anyways.
>
> Someone took a clam from the ocean and drove home with it (far inland and
> higher altitude) to put it in their tank. The experiment was to see if the
> clam would respond to the ocean tide at the same time as the clams in the
> ocean. The clam in the tank did open up but at a completely different time
> from the clams in the sea!!. They figured out that the clam in the tank
had
> adjusted itself to opening to the tide if the ocean was at that level
> inland. In other words it knew that it was at a higher altitude and worked
> out that the tide would be coming in or out at this particular time if the
> ocean was at this level!
>
> This might be what your anemones are doing, they're adjusting according to
> tides not light cycles. Perhaps you should try and match your light cycles
> according to the tank inhabitants and not the other way around. It
> completely freaks me out just how complex these wee critters can be. Cool
> hey?
>
> Regards
> Cam
>
>
>

Surely they'd have originally needed to adjust from the timezone (Fiji,
Indonesia etc) that they came from to your local time zone when they were
first shipped. Maybe they're suffering from some kind of daylight saving
induced "jet lag" (I'm usually tired for a few days either side of the
daylight savings shift). It might be worth leaving your lighting for a few
days to see if they adjust over a few days. It'd be interesting to hear the
result.

"rtk" <> wrote in message
news:x38nb.132565$. net...
> Perhaps I'm wrong and there's another explanation, but I've noticed all
> my corals respond to time of day rather the tank lights. I thought it
> might have been a learned reaction, that they could actually anticipate
> the lights going off, but they have ignored the changes I made for the
> switch from daylight saving time. At 6 a.m. they begin to open; at only
> 4 p.m., they start closing in although one of their lights doesn't go
> off until 6 and the other at 7. I think I'll adjust the lights to them
> and whatever they perceive as day and night. Has anyone else noticed
> this kind of behavior, this independence from our definition of waking
> hours?
>
> Ruth Kazez
>

I just spoke to someone whose research is remote from corals, but he is
director of the Communications and Spaces Lab at PSU and his field of
research is on middle atmospheric processes including layering, waves
and tides, electrodynamics, and meteor physics. With tongue only
slightly in cheek, I asked if it was possible that corals could have a
little gps and, if so, would that be a magnetic response that was tuning
them into the earth's rotation. He felt that was a real possibility and
that if in a week they don't make an adjustment to the change of
artificial lighting, he would definitely look into it. There are a
couple other people I intend to ask about it. I doubt very much if I
can come up with a definite answer because I imagine funding for such a
subject would be hard to come by.

rtk

Happy'Cam'per wrote:
..............
> Someone took a clam from the ocean and drove home with it (far inland and
> higher altitude) to put it in their tank. The experiment was to see if the
> clam would respond to the ocean tide at the same time as the clams in the
> ocean. The clam in the tank did open up but at a completely different time
> from the clams in the sea!!. They figured out that the clam in the tank had
> adjusted itself to opening to the tide if the ocean was at that level
> inland. In other words it knew that it was at a higher altitude and worked
> out that the tide would be coming in or out at this particular time if the
> ocean was at this level!
................
........

FWIW Ruth, I run my reef's on a 6hr on/off and all my corals adjust to
opening and closing with these lighting periods twice daily. I honestly
don't think that they would accustimate to any "tidal zoneage" or be
dependant on that for their scheme. they bend and flex to fit their habitat
regardless of where they are at, and when their lights come on/off. they
have not a clue as to where in the world they are kept at, either by a
little gps or magnetic lines. they live by light and the length of the day
as well as the cycle of the moon (yea the moon lights the ocean at night) to
determine the season and the tide settings.

kc

"rtk" <> wrote in message
news:Sicnb.132651$. net...
> I just spoke to someone whose research is remote from corals, but he is
> director of the Communications and Spaces Lab at PSU and his field of
> research is on middle atmospheric processes including layering, waves
> and tides, electrodynamics, and meteor physics. With tongue only
> slightly in cheek, I asked if it was possible that corals could have a
> little gps and, if so, would that be a magnetic response that was tuning
> them into the earth's rotation. He felt that was a real possibility and
> that if in a week they don't make an adjustment to the change of
> artificial lighting, he would definitely look into it. There are a
> couple other people I intend to ask about it. I doubt very much if I
> can come up with a definite answer because I imagine funding for such a
> subject would be hard to come by.
>
> rtk
>
> Happy'Cam'per wrote:
> .............
> > Someone took a clam from the ocean and drove home with it (far inland
and
> > higher altitude) to put it in their tank. The experiment was to see if
the
> > clam would respond to the ocean tide at the same time as the clams in
the
> > ocean. The clam in the tank did open up but at a completely different
time
> > from the clams in the sea!!. They figured out that the clam in the tank
had
> > adjusted itself to opening to the tide if the ocean was at that level
> > inland. In other words it knew that it was at a higher altitude and
worked
> > out that the tide would be coming in or out at this particular time if
the
> > ocean was at this level!
> ...............
> .......
>

FWIW Ruth, I run my reef's on a 6hr on/off and all my corals adjust to
opening and closing with these lighting periods twice daily. I honestly
don't think that they would accustimate to any "tidal zoneage" or be
dependant on that for their scheme. they bend and flex to fit their habitat
regardless of where they are at, and when their lights come on/off. they
have not a clue as to where in the world they are kept at, either by a
little gps or magnetic lines. they live by light and the length of the day
as well as the cycle of the moon (yea the moon lights the ocean at night) to
determine the season and the tide settings.

kc

"rtk" <> wrote in message
news:Sicnb.132651$. net...
> I just spoke to someone whose research is remote from corals, but he is
> director of the Communications and Spaces Lab at PSU and his field of
> research is on middle atmospheric processes including layering, waves
> and tides, electrodynamics, and meteor physics. With tongue only
> slightly in cheek, I asked if it was possible that corals could have a
> little gps and, if so, would that be a magnetic response that was tuning
> them into the earth's rotation. He felt that was a real possibility and
> that if in a week they don't make an adjustment to the change of
> artificial lighting, he would definitely look into it. There are a
> couple other people I intend to ask about it. I doubt very much if I
> can come up with a definite answer because I imagine funding for such a
> subject would be hard to come by.
>
> rtk
>
> Happy'Cam'per wrote:
> .............
> > Someone took a clam from the ocean and drove home with it (far inland
and
> > higher altitude) to put it in their tank. The experiment was to see if
the
> > clam would respond to the ocean tide at the same time as the clams in
the
> > ocean. The clam in the tank did open up but at a completely different
time
> > from the clams in the sea!!. They figured out that the clam in the tank
had
> > adjusted itself to opening to the tide if the ocean was at that level
> > inland. In other words it knew that it was at a higher altitude and
worked
> > out that the tide would be coming in or out at this particular time if
the
> > ocean was at this level!
> ...............
> .......
>