what can people do to help keep duegons alive. how are duegons becoming exsint.

Dear sknig31-ga, 

I assume you mean Dugongs. 

The answer to your question appears in a very comprehensive report by
the United Nations Environment Programme titled: Status Report and
Action Plans for Countries and Territories.

It is a 172 page pdf file covering parts of the world where the dugong
is found (some pages are blank, so make you sure you keep scrolling
down).

According to this report, Dugongs are under threat from:

Habitat Loss and Degradation
Fishing Pressure
Hunting
Vessel Strikes
Ecotourism 
Acoustic Pollution
Chemical Pollutants 
Diseases
Susceptibility to mortality during capture for research


Suggested conservation initiatives are:

Legislation to protect them
Ban hunting
Education of local peoples
Research to understand more about the dugong
Better management of local resources 
Improved land use
Sanctuaries and protection of their habitat

I recommend you read the document as the threat to Dugongs varies
depending on where in the world they are located.

Source
http://www.tesag.jcu.edu.au/dugong/doc/dugongactplan.pdf


I hope this answers your question. If it does not, or the answer is
unclear, then please ask for clarification of this research before
rating the answer. I shall respond to the clarification request as
soon as I receive it.
Thank you
answerfinder


Search strategy
dugongs
://www.google.com/search?hl=en&lr=&ie=UTF-8&q=dugongs

You may wish to check out the following website too:
http://www.savethemanatee.org/