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Descripción: “...The hypothesis was that the physicochemical profile, water quality and flow regime affect the activity of both enzymes, both in the water and in the biofilm, since they influence the concentration of nutrients transported by the river. According to the results obtained, no statistically significant differences were found in the enzymatic activity at low, medium and high flow rates, although a higher concentration of nutrients was observed at low and medium flow rates than at high flow rates. ...”

Descripción: “...Model indicates centrally located coal within Colombia must be transported through the port of Barranquilla, using integration strategies, such as rail-river and road-river. ...”

Descripción: “...The present work was thus intended to determine the effects of capture and post-capture on the fishes’ health, assessing river water quality and every phase of the fishing traditionally used in the area, including a complete hydrological cycle  (February 2008-January 2009) in the Acacias, Orotoy and Guamal rivers. ...”