Reasons for a Sperm Whale Mass Stranding
Author Information
Author(s): Mazzariol Sandro, Di Guardo Giovanni, Petrella Antonio, Marsili Letizia, Fossi Cristina M., Leonzio Claudio, Zizzo Nicola, Vizzini Salvatrice, Gaspari Stefania, Pavan Gianni, Podestà Michela, Garibaldi Fulvio, Ferrante Margherita, Copat Chiara, Traversa Donato, Marcer Federica, Airoldi Sabina, Frantzis Alexandros, De Bernaldo Quirós Yara, Cozzi Bruno, Fernández Antonio
Primary Institution: Department of Public Health, Comparative Pathology and Veterinary Hygiene, University of Padua, Legnaro, Italy
Hypothesis
What are the causes of the mass stranding of sperm whales in the Adriatic Sea?
Conclusion
The mass stranding of sperm whales was likely caused by a combination of prolonged starvation, environmental pollutants, and adverse meteorological conditions.
Supporting Evidence
- The whales were found stranded along the Adriatic coast in December 2009.
- High levels of environmental pollutants were found in the tissues of the stranded whales.
- Three of the stranded whales were previously identified in the Mediterranean.
- Postmortem examinations revealed signs of prolonged starvation.
- Gas bubbles were found in the coronary veins of the examined whales.
Takeaway
A group of sperm whales got lost and starved in the Adriatic Sea, leading to their stranding on the beach.
Methodology
Complete necropsies were performed on three whales, and various tissue samples were analyzed for histopathology, virology, bacteriology, and toxicology.
Potential Biases
Potential bias due to the limited number of whales examined and the focus on those that stranded alive.
Limitations
The study was limited to the whales that were found alive and did not include a full autopsy of all seven whales.
Participant Demographics
All seven whales were male and part of the Mediterranean population.
Statistical Information
P-Value
p<0.025
Statistical Significance
p<0.025
Digital Object Identifier (DOI)
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