Biodegradation of hexadecane using sediments from rivers and lagoons of the Southern Gulf of Mexico.

Autor: García-Cruz NU; Marine Resources Department, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Km. 6 Antigua carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico., Sánchez-Avila JI; Mexican Center for Innovation in Geothermal Energy (CeMIE-Geo), Center for Scientific Research and Higher Education at Ensenada (CICESE), Carr. Ensenada-Tijuana No. 3918, Zona Playitas, 22860 Ensenada, B.C., Mexico., Valdés-Lozano D; Marine Resources Department, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Km. 6 Antigua carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico., Gold-Bouchot G; Oceanography Department, Geochemical and Environmental Research Group, Texas A&M University, College Station, TX, USA., Aguirre-Macedo L; Marine Resources Department, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Km. 6 Antigua carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico. Electronic address: leopoldina.aguirre@cinvestav.mx.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2018 Mar; Vol. 128, pp. 202-207. Date of Electronic Publication: 2018 Feb 06.
DOI: 10.1016/j.marpolbul.2018.01.026
Abstrakt: The Southern Gulf of Mexico is an area highly impacted by crude oil extraction, refining activities and the presence of natural petroleum seepage. Oceanic currents in the Gulf of Mexico continually facilitate the transport of hydrocarbons to lagoons and rivers. This research evaluated hexadecane (HXD) degradation in marine sediment samples from lagoons and rivers that are fed by the Southern Gulf of Mexico, specifically six samples from rivers, three samples from lagoons, and one sample from a marine outfall. The highest rates of biodegradation were observed in sediments from the mouths of the Gonzalez River and the Champotón Lagoon. The lowest consumption rate was found in sediment from the mouth of the Coatzacoalcos River. With regards to the Ostión Lagoon and the Grijalva River, there was a low rate of consumption, but a high efficiency of degradation which took place at the end of the experiments. No correlation was found between the consumption rate and the environmental physicochemical parameters.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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