The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River.
The distribution, composition and numeric density of zooplankton communities at the first reach of Middle Paraná River were studied at the crosssection “Corrientes-Resistencia", about 30 km downstream its confluence with Paraguay River, by means of monthly samplings from April/76 to De...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
2023
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/eco/article/view/7106 |
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I48-R154-article-71062023-12-01T21:32:16Z The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. Zooplancton del Río Paraná Medio: variaciones temporales y distribucionales en el área de confluencia con el Río Paraguay Bonetto, Argentino A. Corrales de Jacobo, Marta A. The distribution, composition and numeric density of zooplankton communities at the first reach of Middle Paraná River were studied at the crosssection “Corrientes-Resistencia", about 30 km downstream its confluence with Paraguay River, by means of monthly samplings from April/76 to December/79. Samples were obtained one meter deph, fíltering 100 1 water with a 53 np mesh size sieve, at three stations: two located about 50 m from the margins (left at Corrientes and right at Chaco próvinces), and thé third at the centre of the section. Several Imnological parameters were recorded and water samples were taken to carry out current physical analysis at the laboratory. The numeric density of zooplankters and its specific composition, though very variable, resutted quite elevated (between 1 and 195 ind/l, with a total of 127 species), becoming both valúes more elevated towards the right margin. This river skle is very influenced by Paraguay River, wbile the left one, practically receive only Paranean waters. In spite of that, most zooplanktonic characteristic species in numerosity and frequence were generaüy similar in both margins. The distribution, composition and numeric density of zooplankton communities at the first reach of Middle Paraná River were studied at the crosssection “Corrientes-Resistencia", about 30 km downstream its confluence with Paraguay River, by means of monthly samplings from April/76 to December/79. Samples were obtained one meter deph, fíltering 100 1 water with a 53 np mesh size sieve, at three stations: two located about 50 m from the margins (left at Corrientes and right at Chaco próvinces), and thé third at the centre of the section. Several Imnological parameters were recorded and water samples were taken to carry out current physical analysis at the laboratory. The numeric density of zooplankters and its specific composition, though very variable, resutted quite elevated (between 1 and 195 ind/l, with a total of 127 species), becoming both valúes more elevated towards the right margin. This river skle is very influenced by Paraguay River, wbile the left one, practically receive only Paranean waters. In spite of that, most zooplanktonic characteristic species in numerosity and frequence were generaüy similar in both margins. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/7106 10.30972/eco.12237106 Ecosur; 1985: vol. 12-13, nos. 23-24; 1-23 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/7106/6543 |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| author |
Bonetto, Argentino A. Corrales de Jacobo, Marta A. |
| spellingShingle |
Bonetto, Argentino A. Corrales de Jacobo, Marta A. The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| author_facet |
Bonetto, Argentino A. Corrales de Jacobo, Marta A. |
| author_sort |
Bonetto, Argentino A. |
| title |
The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| title_short |
The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| title_full |
The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| title_fullStr |
The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| title_full_unstemmed |
The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River. |
| title_sort |
zoo´plankton of the middle paraná river: temporal and distributional variations in the confluence area with the paraguay river. |
| description |
The distribution, composition and numeric density of zooplankton communities at the first reach of Middle Paraná River were studied at the crosssection “Corrientes-Resistencia", about 30 km downstream its confluence with Paraguay River, by means of monthly samplings from April/76 to December/79.
Samples were obtained one meter deph, fíltering 100 1 water with a 53 np mesh size sieve, at three stations: two located about 50 m from the margins (left at Corrientes and right at Chaco próvinces), and thé third at the centre of the section. Several Imnological parameters were recorded and water samples were taken to carry out current physical analysis at the laboratory.
The numeric density of zooplankters and its specific composition, though very variable, resutted quite elevated (between 1 and 195 ind/l, with a total of 127 species), becoming both valúes more elevated towards the right margin. This river skle is very influenced by Paraguay River, wbile the left one, practically receive only Paranean waters. In spite of that, most zooplanktonic characteristic species in numerosity and frequence were generaüy similar in both margins. |
| publisher |
Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) |
| publishDate |
2023 |
| url |
https://revistas.unne.edu.ar/index.php/eco/article/view/7106 |
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