1985: vol. 12-13, nos. 23-24

Artículos

• The zoo´plankton of the Middle Paraná River: Temporal and distributional variations in the confluence area with the Paraguay River.

  Argentino A. Bonetto, Marta A. Corrales de Jacobo

  1-23

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• Diel rhythm of phytoplakton photosynthesis, respiration, photopigments, and heterotrophic bacteria (Embalse del Río III, Córdoba, Argentina)

  Aldo A. Mariazzi, M. Cristina Romero, Víctor H. Conzonno, Miguel A. Di Siervi

  25-35

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• The benthos of the Middle Paraná river in the Corrientes-Esquina stretch

  Argentino A. Bonetto, María E. Varela, José A. Bechara

  37-57

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• Phosphorus sorption in bottom sediments from Paraná, Paraguay and Bermejo rivers.

  Fernando L. Pedrozo, Carlos A. Bonetto, Abel Ramos, Ferrucio Minzoni

  59-68

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• Notes about the incidence of Itaipú dam on Argentine ichthyofauna of the Paraná River lower reaches

  Argentino A. Bonetto, Irene R. Wais

  69-73

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• Contribution to the knowledge of dung piles and wallowing places of the guanaco (Lama guanicoe Muller): spatial disposition and density in population of the SW of Chubut

  Sergio L. Saba, Marcelo O. Camazzana, Renato Mazzanti

  75-80

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• Ecology of Calliphoridae from the "Area Platense", Bueno Aires, Argentina.

  Juan C. Mariluis, Juan A. Schnack

  81-91

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• The presence of mounds of the Mima type in Argentina in relation with rodens of Ctenomys genus

  V. G. Roig, G. W. Cox

  93-100

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• Nitrogen and Phosphorus concentrations in rainwater of Corrientes (Argentina)

  Fernando L. Pedrozo, Carlos A. Bonetto

  101-110

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• Heterotrophic bacterial upyake on glucose and glycollate in an eutrophic pond (Chascumus, Argentina)

  M. Cristina Romero, Aldo A. Mariazzi

  111-121

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• Intrasexual egg laying in Belostoma oxyurum. A note on its ecological determinants (Hemiptera, Belostomatidae)

  Juan A Schnack, Eduardo A. Domizi

  123-125

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