Fishermen from México are the most poor and less protected people. Their work is especially risky because they fish in very fragile crafts and they don't rely on sailing instruments. Many of them don't know how to swim, neither they utilize rescue equipment; to this one must add that they don't rely on the service of coastguard vessels. Population in general doesn't have public services neither social assistance. In order to survive they practice mutual aid, that generates networks for the exchange of goods and services. Gossip and judgements derived from these relationships permit a dynamic equilibrium, under the guide of reciprocity. During the celebrations of the Day of the Dead, fishermen update their social principles of mutual aid and the solidarity between each other. They also renew the network of social relationships that allow them to survive.Los pescadores de México son las personas más desprotegidas y pobres. Su trabajo es ariesgado porque pescan en naves muy frágiles y no dependen de instrumentos de navegación. Muchos no saben nadar, tampoco usan equipo de rescate y unido a esto tiene una gran desconfianza en el servicio del guardacostas. La población en general no cuenta con servicios públicos ni asistencia social. Para sobrevivir practican la solidaridad que genera redes para el intercambio de bienes y servicios. Durante la celebración del día de muertos, los pescadores actualizan sus principios sociales de apoyo mutuo y solidaridad entre ellos mismos. Además de renovar las redes de relaciones que les permite sobrevivir.