Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna (Thunnus albacares) and Rainbow Runners (Elagatis bipinnulata) to shoal up Bigeye Scad (Selar crumenophthalmus) and Amberstripe Scad (Decapterus muroadsi)