reef depth and temperature correlation

[twelvejewelz]

im wondering if there is any studies on the debth of the water and the temperature of the water? anyone know what the temperature of the water would be at say a debth of 10 meters, 20 meters , 30 meters, 40meters, 50 meters 60 meters, and 70 meters.What is the difference in temperature at each of those debths in a reef that is say 80F at the surface to 5 meters if this makes any sense?thanks in advance!

[greenbean36191]

Reefs are well-mixed with regard to temperature. It's essentially the same temperature at 50m as it is at the surface. There will be a few degrees difference but there is no linear trend in temperature from the surface to the deep reef. The only distinct trends are in temperature variability. Variability is high in the upper few meters, moderate at mid-depths, and high again beyond about 20-40m.

[Uncle Salty 05]

http://www.windows2universe.org/earth/Water/temp.html

[twelvejewelz]

thanks green bean and thanks for the link uncle thats exactly what i was looking for. The reason i ask and want to know is im doing alot of research for my own amusement about the debth of the multibar angelfish and im trying to really figure out why it dosnt fare well in out home aquariums. Im wondering if it could be a temperature reason but now i guess not. Im wondering if its just the debth and "pressure" from the debth its found and when you bring it up its just not enough pressure for the fish and its organs.Im not talking decompressing im talking about the fact that mabe it just needs that "pressure" to live well .Youve all seen when a submersible takes that foam head down to a few hundred or a few thousand feet and when it comes back it is smushed. I really dont think that it has anything to due with food.Im having good luck so far with my multibar but they can die out of nowhere for no reason and im really curious to figure this out lol.

EDIT: it also makes me think that the rare pepperment angel then shoulndt need colder water to live?!

[twelvejewelz]

anyone have any opinions on the matter?

[WarrenG]

I dunno about the water pressure aspect. Understand that a fish isn't affected by depth and pressure like the styrofoam cup because the fish doesn't contain compressible air in its body, other than its adjustable swim bladder.

Angelfish that I've seen living below 60-70 feet deep are often reliant on eating certain sponges, and/or sometimes certain coral polyps for their food.