BS story......guy looks too damn good for that amount of time....IMHO!!!!
Thor Heyerdahl, who sailed the Kon Tiki and the Ra across the Pacific and Atlantic found you could survive on flying fish, provided you had water from rain.
I remember reading of a Chinese steward, Poon Lim, who survived the torpedoing of his ship in WWII and survived for months in the Atlantic.
http://en.wikipedia.org/wiki/Poon_Lim
Now, if Jose Salvador Alvarenga had only had a piece of floatstam to float on he probably would not have made it, but he had a complete but broke fishing boat.