Joseph M. Scimeca, Jr., DVM, PhD; Daniel Oestmann, DVM, PhD
Animal Resources Center and the Department of Pathology and the Marine
Biomedical Institute, University of Texas Medical Branch at Galveston, Galveston, TX
Although Cuttlefish are relatively easy to maintain as captive or
laboratory reared cephalopods, trauma associated injuries will occasionally be encountered. Many
of these lesions will result in bacterial infections that may lead to sepsis and death. The outer
layer of skin of the cuttlefish and all cephalopods is comprised of a delicate single layer of
columnar cell epithelium with a microvillar surface. Many of the lesions observed will be on the
outer surface of the skin since, the epithelial architecture can be easily abraded. Examples of
superficial abrasions and deep ulcerative skin lesions will be shown.
The cuttlebone can be fractured especially when the animal "jets"
into the tank wall. The sequelae from trauma will depend on the severity of the fracture, if the
skin is still intact, or if the coelomic membranes are severely damaged. At least two cuttlefish
had their stomach, caecum and digestive appendages herniate through the cuttlebone resulting in
strangulation of these organs. In our experience some of the cuttlebones can heal and remodel,
but many of the animals fail to grow or gain weight from this lesion.
Ocular opacities have been associated with traumatic lesions. Corneal
opacities have been observed and in some instances lenticular opacities also have occurred. Most
of the opacities resulted from edema and swelling with minimal inflammation. One animal that had
inflammatory lesions had a positive culture of Vibrio alginolyticus from swabs taken from
the midgut gland and eye. Non-traumatic lesions of the eye have been observed, the etiology of
these lesions are unknown.
The author's experience in the prognosis, disposition, and medical treatment
strategies associated with traumatic lesions will also be presented.