Análisis comparativo de las variaciones de la demanda química de oxígeno en esteros, estuarios y piscinas de cultivo de camarón.

Abstract

The chemical oxygen demand (COD) tells us the quantity of oxygen required to oxidize the suspended organic matter in a water body. The present work study the COD in inlet canals of the shrimp farming, in shrimp farming ponds and in estuaries of the aquaculture structure of the province of EL Oro Ecuador. The COD data was obtained analyzing the water samples with the potassium dichromate method. The resulting data was subjected to a comparative analysis between different areas of the shrimp farming structure. The results of this work determined that the inlet water canals of the shrimp farming had the greatest amount of organic matter with a COD concentration of 8.1 mg/l. The water in the shrimp ponds reported a COD concentration of 4.12 mg/l. The water from the estuarine zone reported a COD concentration of 2.07 mg/l. The results help to understand the water quality dynamic in the shrimp farming structure of the Province Of EL Oro, Ecuador.