Crab killed crocea clam.....can this be?

Discussion in 'Invertebrates' started by lanzo, 20 Jan 2009.

  1. lanzo

    lanzo Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    Hey guys

    For the last few weeks i have noticed that my clam didn't do very well, and Sunday afternoon i took it out and opened it (it was already dead) to so see whats going on in the inside.

    What i noticed was a crab on the inside.
    Did this blady crab kill my clam??????

    here is the pics:

    [​IMG]
     
  2. AdS Guest




    to hide all adverts.
  3. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  4. seank

    seank

    Joined:
    24 May 2007
    Posts:
    11,984
    Likes Received:
    119
    Location:
    North of Durban and South of Mozambique
    I only tried my hands at a clam twice. The first one came from some chap in Durban that used to be on this forum and it died 02 days later. The last one lasted a couple of days when I noticed a couple of Hermit crabs chawed him stukkend. Upon closer inspection I found a hermit crab shell stuck between the clam. He probably got onto the Clam and as it wanted to close, it could not because of the shell, so the other Hermits had a ball..
     
  5. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    69
    Location:
    Cape Town
    Hi Lanzo - NO - most likely NOT....

    It was just chowing on the "free meat for all"..... scavenging....

    Did you change ANYTHING on your tank in the last 4 weeks or so? Did you have anything happen to the tank, in this time?

    The mantle of this clam seems to be extremely retracted (shrunken)..... Which means that it was "Stressed" for a while - not "eating" and perhaps not generating enough energy to sustain itself to stay healthy.... It was not "eating" enough by filtration either...
     
  6. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    nothing happened to my system, i have a prehobsis( mind my spelling) out break now, i don't know what triggered it.

    my other clam is doing fine, what could the cause be of this j?
     
  7. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    sean- let me know when you want to try clams agin...i have about 5 left
     
  8. seank

    seank

    Joined:
    24 May 2007
    Posts:
    11,984
    Likes Received:
    119
    Location:
    North of Durban and South of Mozambique
    Can it swim, and does it look like Anthias????? :whistling:
     
  9. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    :biggrin: almost

    so jacq, what would you say happend
     
  10. amalick

    amalick

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Sorry about your loss lanzo, bummer:( - Hope it wasn't that silly little crab (bring back the death penalty i say)

    Geez - Thank goodness I havent thrown any of the hermits I collected into my DT yet. I will follow this thread with interest. Lets see what the forensic murder invesigators come up with
     
  11. Mike

    Mike Retired Moderator

    Joined:
    12 May 2007
    Posts:
    7,859
    Likes Received:
    30
    Location:
    the Motherland
    I suspect that Jacques is right, the crab is too small to kill the clam, but big enough for an opportune dinner.

    Bottom pic, near the clam shell join, there is what looks like a pyramid snail, they can eat clams/snails, check your other clams for tiny white shells - they are normally species specific, they either eat clams OR snails, not usually both.
     
  12. leslie hempel

    leslie hempel Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    14,544
    Likes Received:
    285
    Location:
    Gonubie East London
    i dont think its the crab, rather the clam suffering from gape and succumbing to it..
     
  13. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    Yeah, im sure it isnt the clam, how is your water quality Lanzo?
     
  14. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    69
    Location:
    Cape Town
    Lanzo - how much did you feed (coral food) in the last month or so? Less that normal?
    How long did you have the crocea clam for?
     
  15. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    69
    Location:
    Cape Town
    Lanzo - you still struggling with bryopsis?

    Do the following:
    - increase your alkalinity (to at least 13/14 dKh)
    - increase your magnesium (to around 1500)

    Then the bryopsis will start dying out on it's own...
     
  16. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    ill have a look at my other clam.

    so i need to look for white shells on the clam( does it look like eggs)

    the clam didn't gape.

    what does succumbing mean leslie

    i haven't tested my water in a months time...all the other inmates looks fine,only the prehobsis growing.

    what do you want me to test mek?

    in the last month i only fed my tank 3 times with phyto plankton:(
    i had my crocea almost a year
     
  17. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    wont this high alk effect my sps's
     
  18. Mike

    Mike Retired Moderator

    Joined:
    12 May 2007
    Posts:
    7,859
    Likes Received:
    30
    Location:
    the Motherland
    Yep, they are tiny little snails look almost like baby turbos, but white
     
  19. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    will such a small thing kill a big clam like that?

    ill have a look when lights are on tomorrow, thanks for the heads up mike, hopefully my other clam is clean
     
  20. Mike

    Mike Retired Moderator

    Joined:
    12 May 2007
    Posts:
    7,859
    Likes Received:
    30
    Location:
    the Motherland
    The snails usually come in large gangs, a healthy clam can put up with a few but not too many.

    Give pyramid snail a google
     
  21. lanzo

    lanzo Thread Starter Sponsor

    Joined:
    10 Sep 2007
    Posts:
    9,396
    Likes Received:
    26
    Location:
    Centurion
    Pyramid Snails

    "Identification
    Pyramid Snails, or Pyrams are very small snails that belong to the Pyramidellidae family. They are generally white in color, have a slender shell that tapers to a point, and do not grow larger than a few millimeters. The Pyramid Snails use their long proboscis, which is a tube-like mouth, to puncture the mantle of a Tridacna Clam in order to feed upon the fluids and zooxanthellae cells contained within. A few snails will typically not pose a threat to a healthy Tridacna Clam. The snails reproduce every 90-120 days, and if left to multiply, can cause serious harm or even death to their host in a very short period of time. "
     
Recent Posts

Loading...
Similar Threads - Crab killed crocea Forum Date
[wtd] Halloween hermit crab Wanted 15 Oct 2016
Holloween Hermit crab Invertebrates 28 Sep 2016
[wtd] Hermit Crabs and Turbo Snails Wanted 25 Sep 2016
[wtd] Emerald crabs/ red Mithrax crabs Wanted 16 Jul 2016
Anemone Crab Invertebrates 3 Jul 2016
Emerald crab at the 11th hour? Invertebrates 23 Jun 2016
BTA hosting clowns and crabs? Anemone's 11 Jun 2016