[3] Working on a waste pile in Baja California Sur, Fujita postulated in 1988, that the settlements along the coast from the remains of sea animals appeared to be transitory.
[4] In 1991, Fujita was designated as a researcher with the Instituto Nacional de Antropología e Historia (INAH) (National Institute of Anthropology and History) and assigned to Baja California Sur[2] working the cape region.
[3] Between 1994 and 1996, Fujita's survey of the Island as well as nearby Isla Partida were compiled as El poblamiento de América visto desde la isla Espíritu Santo (The settlement of America seen from the island Espiritu Santo) and documented 127 coastal sites, which included caves, open-air campsites, shelters, and waste piles, containing artifacts, burials and cave paintings.
Lack of remains, has caused many theorists to reject that such hunting occurred in northern Mexico, but Fujita and Porcasi postulated that clacking stones together underwater from the side of a boat, could disrupt the sonar of dolphins.
In areas where deep water is found near the shoreline, the technique could be used to beach the animals and allow them to be clubbed or speared, as it was in the North Atlantic and the Pacific Islands.
[9] Fujita discovered artifacts in 2011, which were c-shaped hooks, similar to those found in Ecuador, Australia and along the coast of the Arabian Sea, indicating that as early as 8,000 to 11,000 years ago, indigenous peoples living in Baja California Sur were engaged in fishing.