Translator Disclaimer
1 September 2006 METHODS USED DURING GROSS NECROPSY TO DETERMINE WATERCRAFT-RELATED MORTALITY IN THE FLORIDA MANATEE (TRICHECHUS MANATUS LATIROSTRIS)
Author Affiliations +
Abstract

Between 1993 and 2003, 713 (24%) of 2,940 dead Florida manatees (Trichechus manatus latirostris) recovered from Florida waters and examined were killed by watercraft-induced trauma. It was determined that this mortality was the result of watercraft trauma because the external wound patterns and the internal lesions seen during gross necropsy are recognizable and diagnostic. This study documents the methods used in determining watercraft-related mortality during gross necropsy and explains why these findings are diagnostic. Watercraft can inflict sharp- and blunt-force trauma to manatees, and both types of trauma can lead to mortality. This mortality may be a direct result of the sharp and blunt forces or from the chronic effects resulting from either force. In cases in which death is caused by a chronic wound-related complication, the original incident is usually considered to be the cause of death. Once a cause of death is determined, it is recorded in an extensive database and is used by Federal and state managers in developing strategies for the conservation of the manatee. Common sequelae to watercraft-induced trauma include skin lesions, torn muscles, fractured and luxated bones, lacerated internal organs, hemothorax, pneumothorax, pyothorax, hydrothorax, abdominal hemorrhage and ascites, and pyoperitoneum.

Jessica D. Lightsey, Sentiel A. Rommel, Alexander M. Costidis, and Thomas D. Pitchford "METHODS USED DURING GROSS NECROPSY TO DETERMINE WATERCRAFT-RELATED MORTALITY IN THE FLORIDA MANATEE (TRICHECHUS MANATUS LATIROSTRIS)," Journal of Zoo and Wildlife Medicine 37(3), 262-275, (1 September 2006). https://doi.org/10.1638/04-095.1
Received: 28 October 2004; Published: 1 September 2006
JOURNAL ARTICLE
14 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top