The Pacific seahorse is a species of seahorse that can be seen from San Diego, California to Peru. This species is listed as threatened because of their habitat reduction, overfishing and illegal trade. While diving, we have identified a kelp forest where many seahorses can be found. Little is known about them, their distribution and behaviour. Our objective is to deterimine the distribution of this species, characerize their habitat and other biological aspects as lenght and sexual proportion.