napoleon wrasse and blue jack fishes hunting Convict tang surgeon fishes mating, Fakarava

Napoleon wrass caranx jack fish blue Caranx melampigus trevally hunt convict tang spawning procession gathering mating reproduction surgeon fish sperm releasing eggs mating shark frenzy grey eat pass undersea Fakarava Tetamanu ocean current school tropical Polynesia banc poisson chirurgien bagnard fraie sperme gamète laitance requins gris frénésie manger passe courant ocean Pacifique sous marin Polynésie group nager convict surgeon fish