Since this is not my area of expertise, I searched Google under the key words "Indian Ocean trade 650 CE" to get these possible sources:
http://en.wikipedia.org/wiki/Arab_slave_trade
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In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
Where can I find some information about Indian Ocean trade around 650 CE?
Thank you :)
2 answers
If your looking for an answer to the question " which of these geographic regions do you think would be best suited to controlling Indian Ocean Naval trade" the answer is, D: the middle east