Instituto Federal do Maranhão de Ciência e Tecnologia do Maranhão, Campus Avançado Carolina, Praça Santo Antônio, nº 93, Centro, 65980-000, Carolina, MA, Brazil.
Universidade Federal Rural do Semi-Árido, Departamento de Ciências Animais, BR 110 - Km 47, Bairro Costa e Silva, 59625-900, Mossoró, RN, Brazil.
Universidade do Estado do Rio Grande do Norte, Departamento de Gestão Ambiental, Av. Prof. Antônio Campos s/n, Bairro Costa e Silva, 59625-620, Mossoró, RN, Brazil.
Universidade Federal Rural do Semi-Árido, Departamento de Ciências Animais, BR 110 - Km 47, Bairro Costa e Silva, 59625-900, Mossoró, RN, Brazil.
Universidade Federal Rural do Semi-Árido, Departamento de Ciências Animais, BR 110 - Km 47, Bairro Costa e Silva, 59625-900, Mossoró, RN, Brazil.
Universidade do Estado do Rio Grande do Norte, Departamento de Ciências Biológicas, Av. Prof. Antônio Campos s/n, Bairro Costa e Silva, 59625-620, Mossoró, RN, Brazil.
The knowledge of the fish trophic structure has been outstanding for providing relevant information on the functioning of the ecosystem in which they are inserted, mainly in dammed environments of semiarid regions that suffer constant changes in the level of water, resulting in alterations, especially in the feeding of the fish due to the variation of the food resources throughout the year, causing changes in the diet of the local ichthyofauna. Within this context, the objective was to describe the trophic categories of fish species in freshwater environments of the Rio Grande do Norte state. Seven trophic guilds were recorded: Detritivore/iliophagous, Insectivorous, Carcinophagous, Piscivorous, Herbivorous and Omnivorous. Through the results, it is observed that the fish species inserted in different environments of the state present the same food pattern, demonstrating flexibility on the diet, prevailing a generalist alimentary habit.
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