1,000 times YES

Discussion in 'The Octopus' Den' started by DWhatley, Apr 19, 2010.

  1. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,079
    Likes Received:
    1,124
    Location:
    Gainesville, GA USA
  2. Stavros

    Stavros GPO Registered

    Joined:
    Jun 26, 2008
    Messages:
    165
    Likes Received:
    35
    Location:
    American University of Kuwait
    Some of these species of fish remind me of ex-girlfriends :grin:

    Thanks for sharing! Awesome video.

    Regarding bio-luminescence as defense mechanism in deep-sea cephalopods:

    "The production of luminous clouds is common among
    other deep-living pelagic invertebrates but rare in cephalopods.
    Anecdotal evidence for the production of luminous
    clouds by squids was summarized by Young et al. (1979),
    who suggested that renal fluid might be the luminous substrate.
    The only well-documented case is the sepiolid Heteroteuthis,
    which ejects a cloud of luminous particles when
    it is disturbed, presumably as a distraction to predators
    (Herring, 1977). The ejecta is produced by glands within the
    mantle that contain dense populations of light-producing
    bacteria, which are combined with ink and mucus during
    release through the siphon (Herring, 1988, 2002). The
    glands themselves emit light and have complex internal
    reflectors, which suggests that they have multiple uses (Herring,
    1988). Structurally and operationally, the release of
    luminous fluids appears to be a completely different process
    in Vampyroteuthis than it is in Heteroteuthis."

    Robison, B.H., Reisenbichler, K.R., Hunt, J.C., Haddock, S.H.D., 2003. Light production by the arm tips of thedeep-sea cephalopod Vampyroteuthis infernalis. Biol. Bull. 205, 102– 109.
     
  3. hermissenda

    hermissenda Blue Ring Supporter

    Joined:
    Feb 19, 2010
    Messages:
    32
    Likes Received:
    2
    Thanks for posting

    What a great talk! Bioluminescence is one of those things that is always fascinating.
     
  4. Stavros

    Stavros GPO Registered

    Joined:
    Jun 26, 2008
    Messages:
    165
    Likes Received:
    35
    Location:
    American University of Kuwait
    There's a relevant event this June in NYC:

    http://www.worldsciencefestival.com/illuminating-the-abyss

    Saturday, June 5, 2010, 4:30 PM - 6:00 PM
    The Paley Center for Media

    "The oceans remain a realm of mystery, with an astonishing 95% still unmapped, but their secrets are starting to be revealed. Journey into the deep to explore exciting discoveries like sea sponges with cancer-fighting potential and underwater mountain ranges that may hold the clue to life’s origin. Rare footage of pioneer Jacques Cousteau will take us back to the early days of passionate ocean exploration; the premiere of "behind-the-scenes” footage from Jacques Perrin's new film Oceans will inspire with a vision of what lies ahead."
     

Share This Page