Results 11 to 20 of about 8,237 (246)

Integrative morphometric and molecular analyses reveal possible genetic contamination of silver catfish populations of the genus Rhamdia in Neotropical River basins. [PDF]

open access: yesJ Fish Biol
Abstract Rhamdia quelen, Rhamdia branneri and Rhamdia voulezi are morphologically similar species that, until recently, were considered synonymous. Although R. quelen has wide distribution in the Neotropical region, R. branneri and R. voulezi are sympatric and endemic species of the Iguaçu River basin.
Bignotto TS   +4 more
europepmc   +2 more sources

Genetic and morphological evidence cast doubt on the validity of Mexican troglobitic species of the Neotropical catfish genus Rhamdia (Siluriformes: Heptapteridae)

open access: yesRevista 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

Biochemical parameters of silver catfish (Rhamdia quelen) after transport with eugenol or essential oil of Lippia alba added to the water [PDF]

open access: yes, 2017
The transport of live fish is a routine practice in aquaculture and constitutes a considerable source of stress to the animals. The addition of anesthetic to the water used for fish transport can prevent or mitigate the deleterious effects of transport ...
A. G. Becker   +50 more
core   +2 more sources

Anesthesia of Epinephelus marginatus with essential oil of Aloysia polystachya: an approach on blood parameters [PDF]

open access: yes, 2017
This study investigated the anesthetic potential of the essential oil (EO) of Aloysia polystachya in juveniles of dusky grouper (Epinephelus marginatus). Fish were exposed to different concentrations of EO of A.
ADAMS RP   +60 more
core   +2 more sources

Cephalic Musculature of the Pacman Catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae). [PDF]

open access: yesJ Morphol
The head of the Pacman catfish (Lophiosilurus alexandri [L. alexandri]) is strongly depressed, broad, and with a large mouth, roughly resembling those of Lophius piscatorius and Chaca bankanensis. Also, they are bottom dwellers and have ambush behavior for fish predation.
da Silva Marques R   +2 more
europepmc   +2 more sources

New vouchered and taxonomically verified records of cave-dwelling populations of catfishes of the genus Rhamdia (Siluriformes, Heptapteridae) from Costa Rica [PDF]

open access: yesSubterranean Biology
Dedicated 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

Rhamdia quelen

open access: yes, 2018
Rhamdia quelen (Quoy & Gaimard, 1824) Rhamdia quelen — Graça and Pavanelli 2007: 149; Hoffmann et al. 2015: 4, fig. A3.C; Bifi et al 2017: 4, fig. 2.16. Material examined. Table 2. Elongated body; terminal mouth; premaxilla and dentary with several diminute and viliform teeth.
Batista-Silva, Valéria Flávia   +6 more
openaire   +2 more sources

Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei). [PDF]

open access: yes, 2006
The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface-
Plath, Martin   +4 more
core   +1 more source

DIFERENTES FONTES DE LIPÍDIOS TESTADAS NA CRIAÇÃO DE LARVAS DE JUNDIÁ (Rhamdia quelen), PISCES, PIMELODIDAE DIFFERENT SOURCES OF FAT TESTED ON LARVAE CULTURE OF JUNDIA (Rhamdia quelen), PISCES, PIMELODIDAE

open access: yesCiência 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

Ictiofauna epígea e subterrânea na área cárstica da Serra do Ramalho, nordeste brasileiro, com listas de peixes troglóbios e troglófilos no Brasil [PDF]

open access: yes, 2008
After an ichthyofaunistic survey in several epigean (surface) water bodies of the Serra do Ramalho, southern Bahia, conducted in May 2007, 44 species were recorded; in addition, three non-troglomorphic (normally eyed and pigmented) and two troglomorphic ...
BICHUETTE, Maria Elina   +3 more
core   +1 more source

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