Jellyfish


 

Eurhamphea vexiligera
E.Widder/Harbor Branch Oceanographic Institution *  1999
Jellyfish (Cnidaria) are probably considered the most beautiful and spectacular of the bioluminescent marrine animals.  However, they may be the least known about.  Due to their fragility, specimens are often destroyed upon capture. (6)
It is often thought that pictures of jellyfish such as the one at left demonstrate bioluminescence, when, in fact this is iridescence.  Jellies actually bioluminesce as shown at right.  It can also be seen that they have the ability to vary the brightness and location of their luminescence.  A jellyfish's biolumincesence is advantageous for several reasons, including defense.

Various states of  luminescence
Eurhamphea vexiligera
E.Widder/Harbor Branch Oceanographic Institution *  1999

 


 
Dinoflagellates Jellyfish Teleosts Cephalopods
Organisms Home Teleosts
 
Questions or Comments?  Please email me at macody@davidson.edu.