What will happen
Did you know dugongs have a few relatives? Well, they are the elephants, manatees and of course, the Steller's Sea Cows. Fortunately, elephants are still in good condition as many of them have safe sanctuaries to reside in. But they still have serious conservation statuses - The Asian Elephant is quite worrying as they are endangered, which is one level worse than the African Elephant, which is vulnerable to extinction as well as the dugongs. Obviously, the Asian Elephant dwells around the Asian areas which include Bangladesh, India, Sri Lanka, Indochina, and some parts of Nepal, Malaysia, Vietnam, Thailand, Cambodia, Laos, Burma, China Bhutan and Sumatra. The African Elephants are twice the size of the Asian Elephants and are only found in Africa (unless in zoos around the world). Fortunately, manatees, which live in the Carribbean Sea, Golf of Mexico and many more, are of least concern as they are not threatened at all. Of course for the Steller's Sea Cows, they were already extinct ages ago by the year of 1768.
I predict that hopefully the dugongs will still be remaining but I think their numbers will have declined and their status would be 'endangered'. Also, I strongly believe that many organisations will build sanctuaries for these innocent marine mammals. I have predicted this because it is a fact that dugong numbers are dropping and i think they will be endangered because of the article I read about the proposal on a sanctuary that still hasn't been done. But eventually, I think the governments or organisations will modestly build these asylums for dugongs because they will really need it when the dugongs' food supply is running really low and is scarce.
Below is a slideshow of dead dugongs.