Cunning et al. - are you looking at total community or for specific suspected microbes? I would suggest checking into the work by Vega-Thurber if you haven't done so already...good luck with your studies!
Apr 08, 2015
Stayin' alive: how do microbes help corals recover from bleaching?
i vote greater amberjack - it looks larger, and at 00:08 you can see the dorsal fin displayed against the deep blue of the water. the fin looks more like: http://indian-river.fl.us/fishing/fish/jackgrea.html rather than my other guess: http://indian-river.fl.us/fishing/fish/jackalm.html both are distributed worldwide - I don't know if there are other species that might be more pacific centric that I am missing...
Apr 06, 2015
Digitizing the Coral Reefs of Easter Island and Salas y Gómez