Anuracanthorhynchus tritaxisentis n. gen., n. sp. from the intestines of the Brazilian frog Hylodes phyllodes (Leptodactylidae) is described and illustrated. Anuracanthorhynchus tritaxisentis n. gen., n. sp., is unique among the echinorhynchid Acanthocephala by possessing a spherical proboscis supporting a small number of hooks of equal size. It is the sixth acanthocephalan species reported from South American anurans.
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http://dx.doi.org/10.1645/GE-3518.1 | DOI Listing |
Rev Bras Ortop (Sao Paulo)
December 2024
Departamento de Ortopedia Pediátrica, Hospital Infantil Joana de Gusmão, Florianópolis, SC, Brasil.
To determine whether the radiographic parameter at the epiphyseal tubercle region (peritubercle lucency sign) on the unaffected side can predict slipped capital femoral epiphysis (SCFE). We retrospectively reviewed patients who received an initial diagnosis of unilateral SCFE between 1995 and 2020 at a pediatric hospital in a Brazilian state's capital. The patients were monitored for at least 18 months.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Campus Erechim, RS 135 - km 72, nº 200, Erechim, RS, Brazil.
Atrazine and glyphosate are considered some of the main pollutants for aquatic ecosystems, directly and indirectly affecting non-target organisms, such as amphibians. This study aimed to evaluate the sublethal effects of different concentrations of atrazine-based herbicide (ABH) and glyphosate-based herbicide (GBH) commercial formulations, both individually and in a mixture, through toxicity tests on the larval stage of Boana faber. Tadpoles were exposed to concentrations of ABH (2, 9.
View Article and Find Full Text PDFEcol Evol
December 2024
Programa de Pós-Graduação Em Ecologia, Departamento de Ecologia e Zoologia Universidade Federal de Santa Catarina Florianópolis Brazil.
J Helminthol
October 2024
Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, MG, Brasil.
(Baylis, 1927) is a widespread nematode in South America that infects different species of anurans from different families. Although the morphology of this species shows intraspecific variations and is well studied, does not have genetic characterisation. Therefore, the present study aimed to provide the first genetic characterisation of this parasite, based on 18S and 28S rDNA sequences, as well as to evaluate its phylogenetic position in the family Cosmocercidae.
View Article and Find Full Text PDFEcotoxicology
January 2025
Center of Sciences and Technology for Sustainability, Federal University of São Carlos, João Leme dos Santos Highway, 110 km, Postal Code 18052-780, Sorocaba, São Paulo, Brazil.
This study focused on investigating the water quality in the Pirajibú River, a relevant water body that flows through the industrial zone of Sorocaba (São Paulo/Brazil). Due to the limitations of assessing water quality based solely on standard physicochemical tests, an ecotoxicological approach was used to assess biomarker changes in the liver of bullfrog tadpoles (Aquarana catesbeiana). The animals were divided into groups and exposed to water samples collected upstream and downstream of the industrial zone.
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