Nautilus Eggs

Discussion in 'Physiology and Biology' started by Carl J. Bobrow, Dec 10, 2004.

  1. Carl J. Bobrow

    Carl J. Bobrow Blue Ring Registered

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    The Nautilus at the National Zoological Park laid a series of eggs (five I think) recently, the event took place about a month or so ago. The intent of the staff is to remove them and place them in a special holding tank, as the water temp needs to be higher than that which Nautilus are normally kept. As to whether or not they are fertile that remains unknown, hatching times vary in captivity, from 10 months to a year plus. More details later, in the meantime here are a few images. :madsci:

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  2. cthulhu77

    cthulhu77 Titanites Supporter

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    Interesting stuff, Carl...thanks for posting that...
    greg
     
  3. atticus_finch

    atticus_finch Wonderpus Registered

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    what he said...:) thx for this. :)
     
  4. corw314

    corw314 Colossal Squid Staff Member Moderator

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    Is this the Baltimore Aquarium? If not where is the National Zoological Park? I am due a trip down there after the holidays, as I am a member at the aquarium. I didn't realize it took so long for the eggs to hatch! Fascinating!!!

    Carol
     
  5. cthulhu77

    cthulhu77 Titanites Supporter

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    Indeed, has this been done before in captivity??? That is one heck of a long gestation period!!!
     
  6. joel_ang

    joel_ang Architeuthis Registered

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    Thanks for sharing this :heee: A year is a long time to wait and see if they're fertile :roll:
     
  7. marinebio_guy

    marinebio_guy Vampyroteuthis Registered

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    There are a few places that have had nautilus lay eggs and have gotten them to hatch.
     
  8. cthulhu77

    cthulhu77 Titanites Supporter

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    MBG... do you have any links to the info? Would be a fascinating read...
     
  9. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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  10. fluffysquid

    fluffysquid Vampyroteuthis Registered

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    I've heard that some places have successfully hatched nautilus eggs, but none survived to adulthood?
     
  11. cthulhu77

    cthulhu77 Titanites Supporter

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    Thanks Kevin...an interesting read. Lots of speculation though...had not realized that Nautilus were so researched in regards to reproduction...seems odd in light of how "in the dark" we are with so many cephalopod species reproduction events...
     
  12. marinebio_guy

    marinebio_guy Vampyroteuthis Registered

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    The only place I know for sure is the Waikiki aquarium but I think they did it in Japan too.
     
  13. Architeuthoceras

    Architeuthoceras Architeuthis Staff Member Moderator

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    From the introduction in the paper referenced above:

    The first embryos of N. belauensis were obtained in 1985 at the Waikiki Aquarium (Hawaii) (Carlson 1985; Arnold and Carlson 1986). Hatching of this species was attained in 1988 at the Kagoshima Aquarium (Japan) (Okutani 1990), and in 1990 at the Waikiki Aquarium (Carlson 1991; Carlson et al. 1992). Hatching of N. macromphalus was also observed in 1993 at the Toba Aquarium (Japan) (Uchiyama and Tanabe 1999).

    There may have been some since. :?:
     
  14. Ceph Roy

    Ceph Roy O. bimaculoides Registered

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    Nice pics, thanx for the info. :tentacle:
     
  15. Andy Lister

    Andy Lister Vampyroteuthis Registered

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    They've been hatched in indonesia before I think in captivity but I dont hink that any have been brought on successfully. It's all in the Mark Norman book, Cephalopods, a world guide somewhere!
     

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