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Cazzaniga, Néstor J.
  Caracterización química y faunística de canales de drenaje del valle inferior del Río Colorado - Partido de Villarino y Patagones, Provincia de Buenos Aires - / Néstor J. Cazzaniga
  En: Ecosur / Ecosur. -- Vol. 8, no. 15 (mar, 1981). -- Buenos Aires : Ecosur, 1981

  Disponible en estante de INICNE
Chemical and faunistic characterization of drainage channels of the Lower Colorado River Valley (Villarino and Patagones Districts, Buenos Aires Province

  This is a contribution to the study of the salty soil de degradation, produced by outcrop of underground salt water, in the Lower Colorado River Valley. The process is made worse by the excesive growth of submerged aquatic weeds in the drainage system. The macroscopic aspect of the problem is shown in a nonquatizated flow diagram.
On the basis of fortnightly water analysis, main chemical features of four principal channels are reported. For each month and channel Schoeller´s graphs are added and ionic variation through the year is pointed out.
The meiofauna related to aquatic weeds was identified and some observations on alimentary habits were made. Bafon-benthos complex is a low diversity community with unispecific dominance of the gastropod Littoridina parchappii (Hydrobiidae). Trophic relationships of this fauna are graphically displayed.
The lack of an effective predation on weeds may be a factor of their exuberant development and the introduction of the macrophytophagus snail Ampullaria canaliculata Lamarck, 1801, as a potential biocontrol agent, is proposed.
  ISSN: 0325108X

  1. PECES DE AGUA DULCE; 2. ARGENTINA; 3. FRESHWATER FISH; 4. INLAND WATERS

  (61) Inv.: 01-R00274 S.T.: 597 ECO/8 no 15 ej.1 ; (61) Inv.: 01-R00275 S.T.: 597 ECO/8 no 15 ej.2
2 Ejemplares
U. Info. Inventario S.T. / Ubicación
01-R00274 597 ECO/8 no 15 ej.1
01-R00275 597 ECO/8 no 15 ej.2

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Cazzaniga, Néstor J.
Caracterización química y faunística de canales de drenaje del valle inferior del Río Colorado - Partido de Villarino y Patagones, Provincia de Buenos Aires - / Néstor J. Cazzaniga
En: Ecosur / Ecosur. -- Vol. 8, no. 15 (mar, 1981). -- Buenos Aires : Ecosur, 1981

Disponible en estante de INICNE
Chemical and faunistic characterization of drainage channels of the Lower Colorado River Valley (Villarino and Patagones Districts, Buenos Aires Province

This is a contribution to the study of the salty soil de degradation, produced by outcrop of underground salt water, in the Lower Colorado River Valley. The process is made worse by the excesive growth of submerged aquatic weeds in the drainage system. The macroscopic aspect of the problem is shown in a nonquatizated flow diagram.
On the basis of fortnightly water analysis, main chemical features of four principal channels are reported. For each month and channel Schoeller´s graphs are added and ionic variation through the year is pointed out.
The meiofauna related to aquatic weeds was identified and some observations on alimentary habits were made. Bafon-benthos complex is a low diversity community with unispecific dominance of the gastropod Littoridina parchappii (Hydrobiidae). Trophic relationships of this fauna are graphically displayed.
The lack of an effective predation on weeds may be a factor of their exuberant development and the introduction of the macrophytophagus snail Ampullaria canaliculata Lamarck, 1801, as a potential biocontrol agent, is proposed.
ISSN: 0325108X

1. PECES DE AGUA DULCE; 2. ARGENTINA; 3. FRESHWATER FISH; 4. INLAND WATERS

(61) Inv.: 01-R00274 S.T.: 597 ECO/8 no 15 ej.1 ; (61) Inv.: 01-R00275 S.T.: 597 ECO/8 no 15 ej.2
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