Related Experiment Videos
Intussusception in a Florida manatee
Journal of Wildlife Diseases
|October 1, 1975
Abstract:
An intussusception resulting from an embedded fishhook and a mass of nylon cord, monofilament line, and wire was determined to be the cause of death in a Florida manatee (Trichechus manatus latirostris). Pathologic findings are given along with information on bacteria (Edwardsiella tarda), pesticide residues (DDE, PCB's and dieldrin), and parasites (Chiorchis fabaceus).
Insights
A Florida manatee died from an intussusception caused by ingesting a fishhook and fishing line. Necropsy revealed parasitic and bacterial infections, along with pesticide residues.
Area of Science:
- Marine Mammal Pathology
- Wildlife Toxicology
- Fisheries Science
Background:
- Manatees (Trichechus manatus latirostris) face threats from marine debris and pollution.
- Ingestion of foreign objects can cause severe gastrointestinal distress and mortality in marine wildlife.
Purpose of the Study:
- To determine the cause of death in a specific Florida manatee.
- To document pathological findings, including infectious agents and environmental contaminants.
Main Methods:
- Necropsy and histopathological examination of the deceased manatee.
- Bacteriological, parasitological, and toxicological analyses of tissues and gut contents.
Main Results:
- Intussusception caused by an embedded fishhook and fishing line was identified as the primary cause of death.
- Presence of Edwardsiella tarda bacteria, pesticide residues (DDE, PCBs, dieldrin), and the parasite Chiorchis fabaceus were documented.
Conclusions:
- Fishing gear and associated environmental contaminants pose a significant threat to manatee survival.
- Comprehensive necropsy and diagnostic analyses are crucial for understanding mortality causes in endangered marine species.