Copepod? Isopod? Octopod?
Posted 28 January 2013 - 06:00 AM
Posted 28 January 2013 - 10:04 PM
Fish have scales These look like, if you've ever seen one, shiny blue fish scales floating through the water, until you notice that they move....
Posted 29 January 2013 - 01:23 AM
As I have mostly seen these on sunrise dives I always thought that it was some sort of bioluminescence, but as you say, it really looks like it moves!
From what I can see it is extremely thin and glass-like, it doesn't look like there are any organs, appendages or anything, shape looks like that of a copepod but to be honest, I'm just guessing! To me it looks like it is see-through and on occasion reflects the surface light giving it the blue color.
I hope someone will be able to ID this as I am really interested to know what these things are!
Happy bubbles, Morten!
Manager @ The Siddhartha Dive Resort & Spa, Bali
Posted 29 January 2013 - 06:37 AM
The first seconds show a live specimen moving, while the rest of the video likely shows an empty exuvium (the empty shell). Appendages are visible if you look thoroughly on the video (not reflecting the light).
Examples of some isopods:
Olympus OM-D EM-1, PT-EP11, Inon Z-240
Posted 31 January 2013 - 07:20 AM
ImageQuest has nice shots of the sexes & more info.