Whale shark and mobula ray

Rhincodon typus
First day at sea in Nosy Be to encounter whale sharks.
A memorable day !!! There were hunting everywhere, thousands of spokes mobula and hundreds of shark baleines.Nous have even met some whales Omura, very rare species.
All were there for one thing, a sort of feed krill (small shrimp).
I do not think I would see such a large concentration of life too early.