TY - JOUR AU - RESTREPO, R. AU - SERRANO, M. AU - VILLA, G. PY - 1999/12/31 Y2 - 2024/03/28 TI - Evaluación ecotoxicológica de la influencia de los vertimientos del campo de producción la Cira-infantas (GCO) sobre dos cuerpo receptores JF - CT&F - Ciencia, Tecnología y Futuro JA - CT&F Cienc. Tecnol. Futuro VL - 1 IS - 5 SE - Scientific and Technological Research Articles DO - 10.29047/01225383.573 UR - https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/573 SP - 101-112 AB - <p>Application of a methodology to determine acute toxicity and toxic charge of the six effluents of Ecopetrol's production field La Cira-lnfantas, as well as to assess water quality of receptor streams (La Cira and Reposo), through toxicity test with three native organisms from the region: an algae&nbsp;<em>(Scenedesmus subspicatus), a&nbsp;</em>macrophite&nbsp;<em>(Lemna aequinoctialis) a&nbsp;</em>cladoceran&nbsp;<em>(Moinodaphnia macleayi)&nbsp;</em>and&nbsp;<em>Daphnia&nbsp;</em>p<em>u</em>/ex as the reference organism. The toxic potential of the effluents, by conducting additional bioassays with (BaC<sup>+2</sup>&nbsp;y NaCI), was also determined since high concentrations of (Ba<sup>+2</sup>&nbsp;and Cl<sup>-</sup>;) are present in the effluents. All tested organisms showed sensitivity to the reference toxicant (K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>), and met international criteria fortheir use as bioindicators in ecotoxicology studies. The response of the bioindicators to the effluents depended on each organism; however effluents 2 and 3, the more highly contaminated, presented the highest toxicities.</p> ER -