Results 91 to 100 of about 7,429 (225)
Biologia e características populacionais de uma espécie rara de Pseudopimelodidae da Bacia do Alto Rio Paraná [PDF]
, 2010 Streams contain an expressive fraction of the South American fish diversity, mostly composed of small-sized, endemic, and rare species. Populational, reproductive, and diet aspects of Microglanis garavelloi were studied, aiming to make a wide ...
ARCIFA, Marlene Sofia +1 more
core +1 more source
Evaluation of the effects of pressure gradients on four Brazilian freshwater fish species
Brazilian Archives of Biology and Technology, 2009 This work aimed to experimentally evaluate the behavior of Brazilian freshwater fish species when submitted to a gradual increase in pressure, as well as sudden decompression's effects simulating the passage through a hydroelectric turbine.
Paulo dos Santos Pompeu +2 more
doaj +1 more source
Influência da sazonalidade na infestação de Ergasilus turucuyus (Copepoda: Ergasilidae) em Acestrorhynchus falcirostris e Hemiodus unimaculatus (Osteichthyes: Characiformes) do Reservatório Coaracy Nunes, estado do Amapá, Brasil. [PDF]
, 2019 O presente estudo investigou a influência da sazonalidade na infestação de Ergasilus turucuyus nas espécies de peixe Acestrorhynchus falcirostris e Hemiodus unimaculatus do Reservatório Coaracy Nunes, Estado do Amapá, Norte do Brasil. Foram coletados 118
TAVARES-DIAS, M., VASCONCELOS, H. C. G.
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Histological alterations in liver and testis of Astyanax aff. bimaculatus caused by acute exposition to zinc [PDF]
Revista Ceres, 2015 This study investigated the effect of acute exposition to zinc (Zn) on histology of the liver and testes of yellow tail lambari (Astyanax aff. bimaculatus). The exposure consisted of six concentrations of Zn (0, 3, 5, 10, 15, and 20 mg/L) for 96 hours of exposure.
Santos*, Daiane Cristina Marques dos +4 more
openaire +4 more sources
Brazilian Journal of Biology, 2012 To evaluate the effects of macrophytes presence in the structure of littoral fish assemblages in the littoral zone, monthly samples were collected from September, 2006 to August, 2007 in an impounded tributary of the Itá Reservoir, the Fragosos River ...
S. Hermes-Silva, E. Zaniboni-Filho
doaj +1 more source
, 2018 A Lernaea cyprinacea e um crustaceo copepode que causa lesao no tegumento do peixe, o que acarreta um aspecto repugnante. Esse fator inviabiliza o peixe para consumo humano, trazendo prejuizos para a piscicultura.
Miguel Gallio +2 more
semanticscholar +1 more source
Trematode Centrocestus formosanus Infection and Distribution in Ornamental Fishes in Mexico [PDF]
, 2009 Análisis de la distribución del Trematodo Centrocestus formosanus en peces de ornatoThe aim of this study was to determine the ornamental fish species affected by the metacercariae of the digenean trematode Centrocestus formosanus and its distribution in
ENRIQUEZ GOMEZ, RICARDO +5 more
core +1 more source
Zoologia (Curitiba), 2013 In this contribution we studied the trophic ecology of four Characidae species from the Cavalo Stream, upper Tocantins River, considering diet overlap and trophic niche breadth.
Maíra Moraes +2 more
doaj +1 more source
Conservation Assessment for Whorled Rosinweed (Silphium trifoliatum L.) [PDF]
, 2004 issued October 1, 2004Report issued on: October 1, 2004INHS Technical Report prepared for USDA Forest Service, Eastern ...
Molano-Flores, Brenda
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Revista Brasileira de Parasitologia Veterinária, 2020 This study identified the parasitic species in juvenile freshwater finfishes during the fattening stage, from a fish farm located in the Zona da Mata (MG), southeastern Brazil, and revealed both macro and microscopical lesions in fish gills.
Rachel Sordi Relvas +4 more
doaj +1 more source