Ralph and Norton, the aquarium's other male whale shark, arrived in June 2005 from Taipei, Taiwan, where they had been destined to become seafood.
Guess they lived longer then they were expected to...
Anyway, as for the cremation, a couple of points. First, this animal will be studied, and much can be learned from it I am sure.
I am assuming that you figure it should be dumped in the ocean, a la a "whale fall" that sustains lots of life in the sea. But, regardless of whether the fish is alive or dead, it is not appropriate, IMO, to rerelease it into the ocean. There is the risk of introducing pathogens into an environment that are not native to it. It would, IMO, be irresponsible to do anything but learn from the remains, and cremate it.
However, calling it "Ralph"????