Results 1 to 10 of about 6,846 (198)
Neotropical Ichthyology, 2016 The species Rhamdia branneri Haseman, 1911 and the subspecies Rhamdia branneri voulezi Haseman, 1911 from rio Iguaçu are currently recognized as synonyms of Rhamdia quelen (Quoy & Gaimard, 1824).
Julio Cesar Garavello +1 more
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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
Biologia do jundiá Rhamdia quelen (Teleostei, Pimelodidae) Biology of Rhamdia quelen (Teleostei, Pemelodidae) [PDF]
Ciência Rural, 2000 O jundiá, Rhamdia quelen, é encontrado desde o centro da Argentina até o sul do México, e seu cultivo está aumentando no sul do Brasil. Portanto, o objetivo desta revisão é apresentar os dados existentes até o momento sobre a biologia dessa espécie.
Levy de Carvalho Gomes +3 more
doaj +5 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
Lethal temperatures for Rhamdia quelen larvae (Pimelodidae) Temperaturas letais de larvas de Rhamdia quelen (Pimelodidae) [PDF]
Ciência Rural, 2000 The lower and upper lethal temperatures (LT50) of R. quelen larvae were determined. The larvae were obtained from two spawning periods with hatching temperatures of 21 and 26ºC respectively.
Adriana Regina Chippari-Gomes +2 more
doaj +5 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 +2 more sources
Pesquisa Veterinária Brasileira, 2012 This study aimed to determine both the lethal and sublethal concentrations of Cypermethrin in young Silver Catfish (Brazilian "Jundiá", Rhamdia quelen) on aquatic environment during 96 hours, as well as to determine the Cypermethrin and Deltamethrin ...
Francisco P. Montanha +7 more
doaj +1 more source
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