5. Explain the difference between mass strandings, group strandings, and an unusual mass stranding event. 6. The dolphins that washed ashore exhibited skin lesions and weight loss that was abnormal for bottle nose dolphins. 1. What kinds of data do you think would be useful in determining the cause of this UME event based on the condition of the dolphins? Name three things you think researchers should record about these dolphins. 2. Some scientists remembered that there was a similar case in 1987-1988, as described in Morbilliviral Disease in Atlantic Bottlenose Dolphins and in Dophin Strandings 7. What happened to bottlenose dolphins in 1987-1988? 8. Does this UME seem similar to that situation? Why or why not? In the 2013 strandings, dolphins were tested for cetacean morbillivirus, and approximately 85% of them were positive (NOAA gov data). Using your computer and the Internet, research cetacean morbillivirus. Here is one website to get you started Morbilliviris Infection. Answer the questions below based on your research. Please put your answers in your own words. Copying directly from a website is considered plagiarism. 9. What is cetacean morbillivirus? What symptoms does it cause? 10. How is cetacean morbillivirus spread? One of the things that researchers keep track of is the different populations of marine mammals. Scientists are able to track dolphins based on photo IDs and genetics. Different populations can have different coloration and caudal fins (tail fins). The populations of dolphins that have been monitored are shown on the next page. Researchers noticed that dolphins that were being found stranded were not only from coastal resident stocks of dolphins, but included migratory populations