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Spatial and seasonal patterns in fish assemblage in Córrego Rico, upper Paraná River basin Neotropical Ichthyology
Takahashi,Erico L. H; Rosa,Fabricio R. T.; Langeani,Francisco; Nakaghi,Laura S. O..
The upper Paraná River basin drains areas of intensive industry and agriculture, suffering negative impacts. The Córrego Rico flows through sugar cane fields and receives urban wastewater. The aim of this work is to describe and to compare the fish assemblage structure in Córrego Rico. Six standardized bimonthly samples were collected between August 2008 and June 2009 in seven different stretches of Córrego Rico. Fishes were collected with an experimental seine and sieves, euthanized, fixed in formalin and preserved in ethanol for counting and identification. Data were recorded for water parameters, instream habitat and riparian features within each stretch. Non-metric multidimensional scaling, species richness and diversity analysis were performed to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dam effects; Diversity; Ecology; Mogi Guaçu River.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100143
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The use of scaning electron microscopy in postvaccinal evaluation of tracheal epithelium of Coturnix coturnix japonica Ciência Rural
Santin,Elizabeth; Lima,Fabiana S.; Paulillo,Antônio C.; Nakaghi,Laura S. O.; Maiorka,Alex.
This study aimed at evaluating the use of scanning electron microscopy in the study of the post-vaccinal respiratory reaction of the tracheal epithelium of quails (Coturnix coturnix japonica) immunized against Newcastle disease. A number of 36 quails were distributed into four groups: T1 <FONT FACE=Symbol>¾</FONT> control birds (non-vaccinated); T2 <FONT FACE=Symbol>¾</FONT> birds vaccinated with Ulster 2C strain; t3 <FONT FACE=Symbol>¾</FONT> birds vaccinated with B1 strain; t4 <FONT FACE=Symbol>¾</FONT> birds vaccinated with LaSota strain. Regardless the experimental group, birds did not show detectable clinical signs of post-vaccinal respiratory reaction. However, the analysis of tracheal fragments by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coturnix coturnix japonica; Newcastle disease; Scanning electron microscopy; Respiratory post-vaccinal reaction.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000100019
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