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Abstract:

A total of 687 adult nematomorphs of four species of Gordiida: Chordodes brasiliensis (393 specimens), Noteochorododes cymatium (47 specimens), N. talensis (162 specimens) and Pseudochordodes dugesi (85 specimens) were collected during a period of 1 year from El Simbolar stream, Argentina. Free-living worms were abundant during autumn and spring, but their number decreased during winter and summer. Males were shorter and significantly more abundant than females. The presence of N. cymatium, N. talensis and P. dugesi was correlated with water temperature and these species were most abundant in winter and spring. The presence of C. brasiliensis was correlated with flow rate and pH; this species was more abundant in autumn and winter. These four species are sympatric. © 2010 Cambridge University Press.

Registro:

Documento: Artículo
Título:Sexual size dimorphism, sex ratio and the relationship between seasonality and water quality in four species of Gordiida (Nematomorpha) from Catamarca, Argentina
Autor:Salas, L.; De Villalobos, C.; Zanca, F.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Avenida Belgrano 300, CP 4700 San Fernando del Valle de Catamarca, Argentina
Facultad de Ciencias Naturales y Museo, Universidad Nacional de la Plata, Paseo del Bosque S/N 1900, Argentina
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, 526 entre 10 y 11, 1900, La Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Tecnológicas, Avenida Rivadavia 1917, Ciudad de Buenos Aires, Argentina
Idioma: Inglés
Palabras clave:Argentina; article; Chordodes brasiliensis; female; male; Nematomorpha; nonhuman; Noteochorododes cymatium; Noteochorododes talensis; pH measurement; Pseudochordodes dugesi; seasonal variation; sex difference; sex ratio; stream (river); water flow; water quality; water temperature; Animals; Argentina; Female; Helminths; Hydrogen-Ion Concentration; Male; Microscopy; Seasons; Sex Characteristics; Water; Chordodes; Cymatium; Nematomorpha; Pseudochordodes
Año:2011
Volumen:85
Número:3
Página de inicio:319
Página de fin:324
DOI: http://dx.doi.org/10.1017/S0022149X1000057X
Título revista:Journal of Helminthology
Título revista abreviado:J. Helminthol.
ISSN:0022149X
CODEN:JOHLA
CAS:Water, 7732-18-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0022149X_v85_n3_p319_Salas

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Citas:

---------- APA ----------
Salas, L., De Villalobos, C. & Zanca, F. (2011) . Sexual size dimorphism, sex ratio and the relationship between seasonality and water quality in four species of Gordiida (Nematomorpha) from Catamarca, Argentina. Journal of Helminthology, 85(3), 319-324.
http://dx.doi.org/10.1017/S0022149X1000057X
---------- CHICAGO ----------
Salas, L., De Villalobos, C., Zanca, F. "Sexual size dimorphism, sex ratio and the relationship between seasonality and water quality in four species of Gordiida (Nematomorpha) from Catamarca, Argentina" . Journal of Helminthology 85, no. 3 (2011) : 319-324.
http://dx.doi.org/10.1017/S0022149X1000057X
---------- MLA ----------
Salas, L., De Villalobos, C., Zanca, F. "Sexual size dimorphism, sex ratio and the relationship between seasonality and water quality in four species of Gordiida (Nematomorpha) from Catamarca, Argentina" . Journal of Helminthology, vol. 85, no. 3, 2011, pp. 319-324.
http://dx.doi.org/10.1017/S0022149X1000057X
---------- VANCOUVER ----------
Salas, L., De Villalobos, C., Zanca, F. Sexual size dimorphism, sex ratio and the relationship between seasonality and water quality in four species of Gordiida (Nematomorpha) from Catamarca, Argentina. J. Helminthol. 2011;85(3):319-324.
http://dx.doi.org/10.1017/S0022149X1000057X