One of the objectives of the Gulf of California Marine Program is to understand the relationship between fisheries and biodiversity in marine and nearshore ecosystems in the Gulf of California. To pursue this objective, we require establishing relationships with the communities involved, which use and understand the environment in which they work. For this purpose we created the Trackers Program, whose main objective is to collect spatio-temporal information related to fisheries that will help understand these relationships. The Trackers Program is a project composed of many research groups and communities that is supported by the Gulf of California Marine Program. The main objective is to work with the communities in an attempt to understand de health status of the most important fisheries resources and their relationship with their habitats.