[Deep-sea food webs] Xray goodness

Discussion in 'The Octopus' Den' started by TPOTH, Sep 30, 2004.

  1. TPOTH

    TPOTH Vampyroteuthis Registered

    Joined:
    Jan 22, 2004
    Messages:
    280
    Likes Received:
    0
    Disclaimer: No ceph content. Apologies in advance. :oshea: made me post this :lol:

    So thanks to Master O's galaxy of contacts we have managed to get a few fishes to an X-ray machine. Suffice to say that I'm blown away...really...

    We got Xrays for two spiky oreos (Neocyttus rhomboidalis).

    [​IMG]

    One (spiky1.jpg), above, did show a rather large scar (almost guaranteed to be a predator attack which the fish did survive) on its pre-dorsal profile but said scar doesn't seem to have left any permanent "record" onto the bone structure. However we were told that this oreo got its back/spine broken at some point and survived that too. Upon playing with the contrast (and other Photoshop whatchamacallits), other "interesting" things appear which leave us rather baffled. Damage (and, i believe, healing) in areas (thin arrows) surrounding the compressed vertebrae (larger arrow).

    [​IMG]

    For comparison, spiky2.jpg (above) doesn't show that kind of damage.

    Also spine.jpg (below) shows a close-up of the spine areas for both oreo (spiky1 on top and spiky2 below).

    [​IMG]

    More to follow, stay tuned....

    TPOTH
     
  2. Steve O'Shea

    Steve O'Shea Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,668
    Likes Received:
    17
    Mightily impressed I am!! I hope you all don't mind this slight non-ceph digression. It will become ceph-oriented in no time, once the stomach contents of these fish start getting analysed, especially the Orange Roughy.

    There's method in our madness. Who wants to see more???
     
  3. CarlS

    CarlS O. vulgaris Registered

    Joined:
    Aug 30, 2004
    Messages:
    89
    Likes Received:
    0
    Very interesting. I wouldn't mind seeing a whole series of these :)

    --Carl - whose back problems makes him empathize with spiky1 :?
    :onycho:
     
  4. Infusoria

    Infusoria Vampyroteuthis Registered

    Joined:
    Jun 3, 2004
    Messages:
    486
    Likes Received:
    0
    Here's an orange roughy (Hoplostethus atlanticus) in this picture you can clearly see the otoliths and swimbladder. This is an immature fish of about 20cm.

    These are a couple of dodgy shots from my dodgy digital camera. The resolution of this is pretty crap. It will be interesting once we've had all the x-rays scanned and I've enhanced them a bit.


    Interesting how dense the roughy flesh is.


    [​IMG]

    [​IMG]
     
  5. Infusoria

    Infusoria Vampyroteuthis Registered

    Joined:
    Jun 3, 2004
    Messages:
    486
    Likes Received:
    0
    These have been enhanced in Photoshop CS. Obviously this the same image as above, I've just tried to enhance as best I can from the original digital shot. Thanks again to Steve making this possible. :notworth:

    [​IMG]

    [​IMG]

    You know this marine biology thing is much more fun/interesting/cooler than making brochures about molded cupboard doors... :P
     
  6. Nancy

    Nancy Titanites Staff Member Moderator

    Joined:
    Nov 20, 2002
    Messages:
    5,579
    Likes Received:
    70
    Location:
    Dallas Texas
    Hey, these are really interesting! Keep them coming.

    Nancy
     
  7. TPOTH

    TPOTH Vampyroteuthis Registered

    Joined:
    Jan 22, 2004
    Messages:
    280
    Likes Received:
    0
    Yes ma'am!
    We aim to please :)

    TPOTH
     
  8. Jean

    Jean Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,215
    Likes Received:
    133
    Location:
    Dunedin, New Zealand
    moremoremoremoremore

    J
     

Share This Page