Ichthyofauna of the remarkably crystalline rio Pratinha, upper rio Paraguacu basin, Chapada Diamantina, Brazil: inventory and conservation status

Autor(es)

Vita, George ^{[1, 2]} ; Camelier, Priscila ^[2] ; Zanata, Angela M. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Museu Zool, Sao Paulo, SP - Brazil

^[2] Univ Fed Bahia, Inst Biol, PPG Biodiversidade & Evolucao, Salvador, BA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Studies on Neotropical Fauna and Environment; v. 56, n. 2, p. 124-134, MAY 4 2021.
• Citações Web of Science: 0

Resumo

The rio Pratinha is a short affluent of the upper course of the rio Paraguacu basin inserted in the semiarid domain in the northeastern of Brazil. It is a unique water body with remarkably transparent water exiting from a cave and immediately forming a lagoon, which has whitish substrate partially covered by tiny gastropod shells. The local ichthyofauna is known only by a few descriptions of endemic or geographically restrict species. The inventory of the ichthyofauna performed herein revealed 24 species distributed in 22 genera, 13 families, and four orders. Characiformes and Siluriformes were the most representative orders, with 15 and eight species, respectively. Characidae is the most rich-species family. In the last decades the rio Pratinha is suffering great environment alteration due the intense anthropic activity focused on touristic exploration, with consequences on its ichthyofauna. Three endemic of the rio Pratinha or rare species occurring therein are currently defined as threatened of extinction: Astyanax brucutu, Kolpotocheirodon figueiredoi, and Lepidocharax diamantina. Furthermore, some previously abundant species in the river, such as A. brucutu and Hyphessobrycon negodagua, are now rarely observed or present in recent samplings. The non-native species Coptodon rendalli and Poecilia reticulata also occur in the river. (AU)

• Processo FAPESP: 17/09321-5 - Characiformes miniaturas (Teleostei: Ostariophysi): evolução, diversidade e biogeografia
• Beneficiário: Manoela Maria Marinho Koh
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores
• Processo FAPESP: 16/19075-9 - Diversidade e evolução de Gymnotiformes (Teleostei, Ostariophysi)
• Beneficiário: Naercio Aquino Menezes
• Modalidade de apoio: Auxílio à Pesquisa - Temático