The ichthyofauna of the La Plata hydrographic basin is divided into Upper and Lower Paraná River systems due to the geographic isolation of the Sete Quedas waterfalls, currently flooded by the lake of the Itaipu dam. In Parodontidae, pairs of species, or groups of cryptic species were described between ...
Abstract Species of Trichogramma Westwood, 1833 (Hymenoptera: Trichogrammtidae) are frequently used as biological control agents against Lepidoptera, but practical application of these egg endoparasitoids are complicated because of their complex taxonomy. This study aimed to compare sequences of internal...
Abstract In the present study, pentastomids belonging to the order Cephalobaenida were isolated from the lungs of Berber skinks Eumeces schneideri (Famiy: Scincidae), which were morphologically described by light and scanning electron microscopy and taxonomically justi- fied by 18s rDNA molecular analyse...
Abstract The present study describes a new species of the genus Sphaerospora found in the urinary bladder of the flag cichlid, Mesonauta festivus collected in Corre Água district of the municipality of Macapá, Amapá State (Brazil). The study includes morphological and phylogenetic analyses of the new ...
Some pelagic and usually large sized fishes are preferential targets for sport and commercial fishing. Despite their economic importance, cytogenetic data on their evolutionary processes and management are very deficient, especially due to logistical difficulties. Here, information for two of such charis...
Ancistrus is a specious genus of armored catfishes that has been extensively used for cytogenetic studies in the last 17 years. A comparison of the extensive karyotypic plasticity within this genus is presented with new cytogenetic analysis for Ancistrus cf. multispinis and Ancistrus aguaboensis. This st...
Oliveira, Ezequiel A. de;
Sassi, Francisco de M. C;
Perez, Manolo F;
Bertollo, Luiz A. C;
Ráb, Petr;
Ezaz, Tariq;
Hatanaka, Terumi;
Viana, Patrik F;
Feldberg, Eliana;
Oliveira, Edivaldo H. C. de;
Cioffi, Marcelo de B.
The South American giant fishes of the genus Arapaima, commonly known as pirarucu, are one of the most iconic among Osteoglossiformes. Previously cytogenetic studies have identified their karyotype characteristics; however, characterization of cytotaxonomic differentiation across their distribution range...
Abstract Hepatozoon pyramidumi sp. n. is described from the blood of the Egyptian saw-scaled viper, Echis pyramidum, captured from Saudi Arabia. Five out of ten viper specimens examined (50%) were found infected with Hepatozoon pyramidumi sp. n. with parasitaemia level ranged from 20-30%. The infection w...
Apicomplexa/clasificación,
Apicomplexa/genética,
Apicomplexa/fisiología,
ADN Protozoario/genética,
ADN Ribosómico/genética,
Eritrocitos,
Eritrocitos/patología,
Hígado/parasitología,
Hígado/patología,
Pulmón/parasitología,
Pulmón/patología,
Parasitemia/parasitología,
Parasitemia/veterinaria,
Filogenia,
Arabia Saudita,
Análisis de Secuencia de ADN,
Viperidae/sangre,
Viperidae/parasitología
Abstract Knowledge of the Arabian Gulf fish's parasite fauna is very poor. Until recently, only scattered reports from different locations are known for ecto- and endoparasites. Therefore, the present study aimed to investigate the digenean species that infects one of the most economically fish species i...
Abstract The current parasitological study was carried out to investigate helminth parasites infecting the Red spot emperor Lethrinus lentjan inhabiting Hurghada City at the Gulf of Suez, Red Sea, Egypt. Third-stage larvae of nematode parasite was isolated from the intestine as well as body cavity of the...
ADN Ribosómico/genética,
Egipto,
Enfermedades de los Peces/parasitología,
Peces/clasificación,
Peces/parasitología,
Océano Índico,
Microscopía Electrónica de Rastreo,
Nematodos/clasificación,
Nematodos/genética,
Nematodos/aislamiento & purificación,
Nematodos/ultraestructura,
Filogenia,
ARN Ribosómico 18S/genética
