| Summary: | Seascape mapping is critical to understanding ecosystem services and managing areas with potential for fishing, power generation, mining, and tourism. Despite advances in marine geophysics, the necessary equipment to make underwater cartography can be expensive and requires a certain degree of specialization. In areas with scarce data, ethnomapping can be used for the elaboration or complementation of marine cartography. In addition, it provides information about the nature, concepts, phenomena, and nomenclatures attributed by the local population. The aim of this study was to integrate the knowledge of artisanal fishermen from NE Brazil into the mapping of seascapes, validating the obtained cartography with scientific sampling. Focus groups were used to promote an open discussion of local users’ knowledge about seascapes and their importance for local fisheries. After analyzing, it was possible to correlate the products of participatory mapping with the scientific data available in the literature, resulting in the seascape ethnomap. Nine seascapes relevant to subsistence fisheries were identified. The mapping of seascapes and fauna captured by indigenous fishermen was similar to that produced from preexisting geology, geomorphology, and fishing data. This validated the methodological protocol and the importance of the participation of local populations in coastal conservation and management activities.
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