Cryptic diversity and diversification processes in three cis-Andean Rhamdia species (Siluriformes: Heptapteridae) revealed by DNA barcoding [PDF]
Genetics and Molecular Biology, 2021 The wide distribution of the Neotropical freshwater catfish Rhamdia offers an excellent opportunity to investigate the historical processes responsible for modeling South America’s hydrogeological structure.
Josiane Ribolli +4 more
doaj +2 more sources
DNA barcoding confirms the occurrence of Rhamdia branneri and Rhamdia voulezi (Siluriformes: Heptapteridae) in the Iguaçu River Basin [PDF]
Neotropical Ichthyology, 2017 DNA barcoding is a widely utilized molecular-based identification of species and taxonomic resolutions. Until recently, Rhamdia voulezi and Rhamdia branneri were considered species synonyms of Rhamdia quelen; however, morphological and cytogenetic ...
Josiane Ribolli +4 more
doaj +3 more sources
Total mercury contamination in fish species of Northwestern Ecuador and potential human health risks. [PDF]
PLoS ONEGold mining activities are often suspected to increase mercury pollution-associated with human health and ecological risks in aquatic ecosystems. The objective of this study was to quantify total mercury (THg) concentrations in fish from four different ...
Gabriela S Yánez-Jácome +5 more
doaj +2 more sources
New records of cave-dwelling populations of Rhamdia catfishes (Siluriformes, Heptapteridae) from Chiapas, Mexico [PDF]
Subterranean Biology, 2023 Dedicated ichthyological surveys in four active karstic caves in the Mexican state of Chiapas (Grijalva River drainage basin) resulted in the discovery of the same number of hypogean populations of Rhamdia catfishes assignable to two different species: R.
Martín Alonso Buenavad-González +5 more
doaj +3 more sources
Revista Mexicana de Biodiversidad, 2021 Four of the 7 species of Rhamdia present in Mexico stand out for being microendemic and also troglobitic, that is, for being restricted to their type-locality caves and for exhibiting a distinctive phenotype characterized by ocular reduction/loss and ...
Jairo Arroyave +1 more
doaj +1 more source
New vouchered and taxonomically verified records of cave-dwelling populations of catfishes of the genus Rhamdia (Siluriformes, Heptapteridae) from Costa Rica [PDF]
Subterranean BiologyDedicated ichthyological surveys in two karstic caves in Costa Rica resulted in the discovery of hypogean populations from three epigean species of catfishes of the genus Rhamdia. The taxonomic identity of these populations was initially determined based
Jairo Arroyave +8 more
doaj +3 more sources
Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxaca, Mexico [PDF]
Neotropical Biology and ConservationThe trophic ecology of fishes in the genus Rhamdia remains poorly reported. Here, we aim to describe the diet composition and infer the trophic levels, niche breadth, and niche overlap between Rhamdia guatemalensis and Rhamdia laticauda in northeast ...
César Camilo Julián-Caballero +3 more
doaj +3 more sources
Pesquisa Veterinária Brasileira, 2008 Objetivando o delineamento do perfil de sensibilidade dos agentes bacterianos causadores de enfermidades em peixes, 51 isolados bacterianos provenientes de Jundiá e pertencentes aos gêneros Acinetobacter spp. (8), Aeromonas spp.
Mateus Matiuzzi da Costa +5 more
doaj +1 more source
Ciência Rural, 2001 O presente trabalho foi desenvolvido para avaliar a influência de diferentes fontes de lipídios sobre o desempenho de larvas de jundiá (Rhamdia quelen). Foi realizado no Setor de Piscicultura do Departamento de Zootecnia da Universidade Federal de Santa ...
Oclecio Uliana +2 more
doaj +1 more source
Distribution and first insight into the reproductive biology of two species of the genus Rhamdia (Siluriformes, Heptapteridae) in a Biosphere Reserve [PDF]
Neotropical Biology and ConservationDistribution data and reproductive biology of freshwater catfishes of the genus Rhamdia remain insufficiently explored, limiting our knowledge of these ecologically, nutritionally, and economically important species.
César C. Julián-Caballero +4 more
doaj +3 more sources