Dolphin Morbillivirus Outbreak in the Mediterranean Sea
Author Information
Author(s): Raga Juan-Antonio, Banyard Ashley, Domingo Mariano, Corteyn Mandy, Van Bressem Marie-Françoise, Fernández Mercedes, Aznar Francisco-Javier, Barrett Thomas
Primary Institution: University of Valencia
Hypothesis
Is the dolphin morbillivirus re-emerging in the Mediterranean striped dolphin population?
Conclusion
The study found that the dolphin morbillivirus is circulating again among Mediterranean striped dolphins, with younger animals being more severely affected.
Supporting Evidence
- Over 100 dolphins were found dead along the Spanish Mediterranean coast.
- 7 out of 10 dolphins tested positive for the dolphin morbillivirus.
- The mean size of dolphins collected in 2007 was significantly smaller than in 1990.
- The current outbreak resembles the previous epizootic in terms of timing and location.
- Population density of striped dolphins may facilitate the spread of the virus.
Takeaway
A lot of dolphins got sick and died from a virus in the Mediterranean Sea, and younger dolphins are getting hurt more than older ones.
Methodology
The study involved examining 10 dolphins for signs of the dolphin morbillivirus using histologic and molecular methods.
Potential Biases
The study relied on a surrogate measure of age (standard length) for comparisons.
Limitations
The results are based on stranded dolphins, which may not represent the entire population's health.
Participant Demographics
The study examined 5 adult and 5 juvenile dolphins.
Statistical Information
P-Value
0.037
Statistical Significance
p = 0.037
Digital Object Identifier (DOI)
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