First record the rare parasitic Pseudostegophilus paulensis in Paranapanema River and geographic distribution in Brazil

• Autor(a) principal: Geller, Iago Vinicios
• Data de Publicação: 2023
• Outros Autores: Garcia, Diego A.Z., Jarduli, Lucas R., Jerep, Fernando C., Yabu, Marcelo S.H., Ferraz, João D., Lima, Moema C., Orsi, Mário L.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Brasiliensis (Online)
• Texto Completo: http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/640

Pseudostegophilus paulensis Miranda Ribeiro 1918 is an endemic parasitic species from the state of São Paulo, southeastern Brazil, with few registered occurrences in databases (15 records). Here, we present the first record of P. paulensis in the middle portion of the Anhumas River, a tributary of the Paranapanema River right bank. Specimens were collected in two environments with different ecological characteristics (lotic water running over gravel sediment and semi-lotic water with silty sediment on the bottom). We also present an updated occurrence map of the species in Brazil. This new record of P. paulensis in the upper Paraná River basin extends the geographic distribution of the species to the South of the state of São Paulo.  Furthermore, important ecological information remains unknown due to the lack of data about this group, such as habitat niches, vertical migration, growth patterns, reproduction, and feeding behavior.