Journal article
Two new species of Hypancistrus (Siluriformes: Loricariidae) from the rio Xingu, Amazon, Brazil
Neotropical ichthyology, v 23(1), e240080
2025
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Abstract Hypancistrus was proposed as a monotypic genus for a highly unique species, H. zebra, known only from a short stretch of the Middle rio Xingu on the Brazilian Shield. Subsequent studies added eight species, all described from river systems draining the Guiana Shield. Analysis of Hypancistrus specimens from the middle and lower Xingu detected two new species that can be separated from its congeners based on color pattern and body size of adults, and that are well known from the ornamental fish trade. Due to their non-overlapping distributions, the prospects of conserving the two species are quite different. One of the species is relatively safe due to its relatively large distribution throughout the Lower Xingu channel up to the downstream end of Volta Grande do Xingu, while the other is in need of urgent protection because it is restricted to a short stretch of the Middle Xingu channel at depths greater than 15 meters, and its distribution lies entirely within the impact zone of the Belo Monte Hydroelectric Power Plant Complex.
Resumo Hypancistrus foi proposto como um gênero monotípico para uma espécie altamente singular, H. zebra, conhecida apenas para um curto trecho do Médio rio Xingu no Escudo Brasileiro. Estudos subsequentes adicionaram oito espécies, todas descritas em sistemas fluviais que drenam o Escudo das Guianas. A análise de espécimes de Hypancistrus do médio e baixo Xingu detectou duas novas espécies, já bem conhecidas do comércio de peixes ornamentais, que podem ser diferenciadas de suas congêneres com base na coloração e tamanho do corpo nos adultos. Devido às suas distribuições não sobrepostas, as perspectivas de conservação das duas espécies são bastante diferentes. Uma delas está relativamente segura devido à sua distribuição relativamente grande ao longo do canal do Baixo Xingu até a extremidade a jusante da Volta Grande do Xingu, enquanto a outra precisa de proteção urgente porque está restrita a um curto trecho do canal do Médio Xingu em profundidades superiores a 15 metros, e sua distribuição está inteiramente dentro da zona de impacto do Complexo Hidrelétrico de Belo Monte.
Metrics
Details
- Title
- Two new species of Hypancistrus (Siluriformes: Loricariidae) from the rio Xingu, Amazon, Brazil
- Creators
- Leandro Melo de Sousa - Universidade Federal do ParáErilda Barbosa de Sousa - Universidade Federal do ParáRenildo de Oliveira Ribeiro - Instituto Nacional de Pesquisas da Amazônia, BrazilMark H. Sabaj - Drexel University, Academy of Natural Sciences of Drexel UniversityJansen Zuanon - National Institute of Amazonian ResearchLúcia Rapp Py-Daniel - National Institute of Amazonian Research
- Publication Details
- Neotropical ichthyology, v 23(1), e240080
- Publisher
- SOC BRASILEIRA ICTIOLOGIA
- Number of pages
- 25
- Grant note
- All Catfish Species Inventory Project (NSF): DEB-0315963 The iXingu Project (NSF): DEB-1257813 CNPq: 486376/2013-3, 311236/2015-4, 001303/2011-2, 313183/2014-7, 309815/2017-7 Federal environmental licensing process associated with the Belo Monte hydroelectric complex: 02001.000907/2024-70
This research was supported in part by the All Catfish Species Inventory Project (NSF DEB-0315963) , iXingu Project (NSF DEB-1257813, PI MHS) , CNPq process 486376/2013-3 (PI LMS) , CNPq process 311236/2015-4 (LRPD) , CNPq process 001303/2011-2, Scientific expedition (LRPD, Co-PI) and the federal environmental licensing process associated with the Belo Monte hydroelectric complex (#02001.000907/2024-70) . JZ (#313183/2014-7) and LMS (#309815/2017-7) received productivity grants from CNPq.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Ichthyology
- Web of Science ID
- WOS:001440084400001
- Scopus ID
- 2-s2.0-85218966053
- Other Identifier
- 991022027423604721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Zoology