Paper on Cuttlefish Mortality

Discussion in 'Cuttlefish Care' started by Jean, Apr 11, 2007.

  1. Jean

    Jean Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,218
    Likes Received:
    138
    Location:
    Dunedin, New Zealand
    Came across this in the library last night & thought it might be of interest. pm me if you want more info!

    J

    Sherrill et al(2000). COMMON CUTTLEFISH (SEPIA OFFICINALIS) MORTALITY AT THE NATIONAL ZOOLOGICAL PARK: IMPLICATIONS FOR
    CLINICAL MANAGEMENT Journal of Zoo and Wildlife Medicine 31(4): 523–531.

    Abstract:

    Six out of seven cuttlefish acquired by the Smithsonian National Zoological Park in July 1998 died before 1 November 1998. Postmortem examinations showed mantle ulcers, secondary bacterial infections, inanition, and cuttlebone fractures. The surviving cuttlefish developed a progressive focal mantle ulcer, was treated with oral chloramphenicol intermittently for 9 wk, and maintained a normal appetite and growth rate until death at 7 mo of age. The National Zoological Park pathology database showed signalments, histories, and causes of mortality of 186 common cuttlefish, each 1–14 mo old, that received gross and histologic examinations; for example, the largest group of cuttlefish of known sex, age, and body weight at postmortem were 7–9 mo old and weighed an average of 376.2 g (males, n 5 18) and 299.0 g (females, n 5 15). Many cuttlefish had multiple pathologic diagnoses. Significant diseases included inflammation and secondary bacterial infections, especially gastrointestinal, cardiovascular, respiratory, reproductive, and ophthalmic, and septicemia due to Vibrio spp. or other gram-negative bacteria. Mantle lesions, including ulceration/dermatitis, abscess/granuloma, necrosis/fibrosis/cellulitis, and laceration abrasion/erosion, were also identified, along with inanition, cuttlebone lesions, and trauma. Mantle lesions were associated with secondary bacterial infections and death. On the basis of this information, if captive cuttlefish behavior creates risk for development of mantle lesions, administration of antibiotics effective against gram-negative bacteria may delay or halt disease progression. Cuttlefish exhibits require proper design, husbandry, economic resources, and staffing to minimize disease syndromes and mortality.
     
  2. cuttlegirl

    cuttlegirl Colossal Squid Supporter Registered

    Joined:
    Sep 16, 2005
    Messages:
    4,891
    Likes Received:
    236
    Location:
    Pittsburgh, PA
    Did the paper mention the size and/or shapes of the tanks they were housed in? S. officinalis do better in round or round-backed aquariums. Also density of animals in the aquarium can cause male/male aggression resulting in the animals jetting backwards into the walls of the exhibits.

    This is why I had an 8 foot diameter circular tank for my S. officinalis. The proper term for the mantle lesions is "butt-burn" :grin: . They often develop secondary infections after abrading their mantles. While it is interesting that the animals recovered, they only lived 7 months... I would think normal lifespan would be closer to 12 months.
     
  3. Jean

    Jean Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,218
    Likes Received:
    138
    Location:
    Dunedin, New Zealand
    Rectangular glass display tanks. Stocking densities varied. I can email you the pdf if you like.

    J
     
  4. Thales

    Thales Colossal Squid Staff Member Moderator

    Joined:
    Jan 22, 2004
    Messages:
    2,996
    Likes Received:
    69
    Jean,

    Could you get me the pdf as well?
     
  5. Jean

    Jean Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,218
    Likes Received:
    138
    Location:
    Dunedin, New Zealand
    On it's way!

    J
     
  6. cuttlegirl

    cuttlegirl Colossal Squid Supporter Registered

    Joined:
    Sep 16, 2005
    Messages:
    4,891
    Likes Received:
    236
    Location:
    Pittsburgh, PA
    Send it my way too, thanks.
     
  7. magikceph

    magikceph O. vulgaris Registered

    Joined:
    Apr 12, 2007
    Messages:
    82
    Likes Received:
    0
    :cry: how sad:cry:
     

Share This Page