Jump to content


Photo
- - - - -

Pom Pom or Boxer Crab Egg sac


  • Please log in to reply
1 reply to this topic

#1 Karen Honeycutt

Karen Honeycutt

    Lionfish

  • Member
  • PipPip
  • 52 posts
  • Gender:Female
  • Location:New York, New York
  • Interests:Underwater Photography, Metropolitan Opera, anything and everything about evolution

Posted 16 December 2013 - 08:05 PM

I presume the object under the crab is an egg sac, but all the examples I found on the web (admittedly all were from aquariums - I could find none from nature) were red in color.  Can anyone help?

Attached Images

  • Lybia tesselata (Mosaic Boxer Crab) - Bali, Indonesia 2.jpg


#2 Alex_Mustard

Alex_Mustard

    The Doctor

  • Super Mod
  • 8366 posts
  • Gender:Male
  • Location:La Maddalena

Posted 17 December 2013 - 12:40 AM

Yes, this is a parasite egg mass. The parasite infects the crab (often a barnacle parasite) and then changes the crab to a female (if it is not already) and makes the crab do its nefarious bidding - produce more parasite eggs.

 

The crabs are otherwise health - which of course is in the parasites interest too.

 

Alex


Alexander Mustard - www.amustard.com - www.magic-filters.com
Nikon D4 (Subal housing). Olympus EPL-5 (waiting for housing).