Ecological knowledge of Xikrin-Mẽbêngôkre fisherman, Indigenous Land Trincheira Bacajá, Pará, Brazil

Sumario: The ecological knowledge of the Xikrin-Mẽbêngôkre and its praxis in aquatic environments of Indigenous Trincheira Bacajá (ILTB) are relevant to improving the use of fisheries resources. The fish were aquatic resources most cited as a supply of food needs of Xikrin. Fishermen consider switching this seasonal cycle creates different etnohabitats conducive to a spatiotemporal ichthyodiversity associated with subsistence and commercial fishing. The experts were able to identify the types of landforms associated with Basin of Bacajá river, facilitating orientation in the ways and paths traversed during fishing trips. It is noteworthy that in the description of the occurrence and distribution of fish in the ethnohabitats ILTB there are important specifics beyond the seasonal periods, such as those related to fishing intrinsic and inherent to fish (size, weight, eating behavior and ethno-ecological aspects). The details in the categorization of aquatic ethnohabitats and biodiversity associated with these sites highlights the relationship of Xikrin with their area of usage as well as the agreed divisions of space between the villages, which must be kept, not only for survival and strengthening communities, but also the intrinsic value of belonging and being Xikrin.