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Chapla, Marie E.; Nowacek, Douglas P.; Rommel, Sentiel A.; Sadler, Valerie M.
(detail)
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2007 |
CT scans and 3D reconstructions of Florida manatee (Trichechus manatus latirostris) heads and ear bones.
Hearing Research 228(1-2): 123-135. 6 tabs. 9 figs. + online supplementary material. doi:10.1016/j.heares.2007.01.029
–ABSTRACT: The auditory anatomy of the Florida manatee (Trichechus manatus latirostris) was investigated using computerized tomography (CT),three-dimensional reconstructions, and traditional dissection of heads removed during necropsy. The densities (kg/m3) of the soft tissues of the head were measured directly using the displacement method and those of the soft tissues and bone were calculated from CT measurements (Hounsfield units). The manatee's fatty tissue was significantly less dense than the other soft tissues within the head (p< 0.05). The squamosal bone was significantly less dense than the other bones of the head (p< 0.05). Measurements of the ear bones (tympanic, periotic, malleus, incus, and stapes) collected during dissection revealed that the ossicular chain was overly massive for the mass of the tympanoperiotic complex.
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Gerlach, Trevor J.; Sadler, Valerie M.; Ball, Ray L.
(detail)
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2013b |
Conservative management of pneumothorax and pneumoperitoneum in two Florida manatees (Trichechus manatus latirostris).
Jour. Zoo & Wildlife Medicine 44(4): 996-1001. 3 figs. DOI:10.1638/2012-0136R3.1. Dec. 2013.
–ABSTRACT: Two distressed Florida manatees (Trichechus manatus latirostris) were reported to the Florida Fish and Wildlife Conservation Commission. The first animal was determined to be an abandoned, emaciated calf. The second animal was a nursing calf that had sustained watercraft-related trauma. Both animals were captured and transported to Tampa's Lowry Park Zoo, where diagnostic evaluations, including physical examinations, blood work, computed tomography (CT), and radiographs were performed. Radiograph and CT scans identified the presence of free air within the pleural and abdominal cavities of both animals. Based on the lack of substantial findings in the first animal and a rapid resolution of clinical signs in the second animal, both animals were managed conservatively. This report documents simultaneous pneumothorax and pneumoperitoneum, the associated clinical and diagnostic findings, and conservative medical management of these conditions in the Florida manatee.
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Bibliography and Index of the Sirenia and Desmostylia 