Residual organochlorinated compounds in two fish species from Ciénaga Grande del Bajo Sinú, Córdoba, Colombia
Journal Title: Revista MVZ Cordoba - Year 2011, Vol 16, Issue 1
Abstract
Objective: To determine the levels of organochlorinated pesticides (OCPs) in two fish species, obtained from Ciénaga Grande del Bajo Sinu. Materials and methods. A gas chromatograph (Perkin Elmer XL Autosystem) with electron capture detector and capillary column 5% diphenyl and 95% dimethylpolysiloxane, with 30 m in length, 0.25 mm internal diameter and 0.25 mm thick film were used. Two species were studied: Prochilodus magdalenae and Hoplias malabaricus during wet and dry seasons. Results. The percentages of pesticides recovered were 80 and 84% whereas the detection and quantification limit was 0.02 to 0.18 ng/g and 0.2 to 1.8 ng/g for both species, respectively. Relative standar deviation remained below 7% in all cases. Among those organochlorinated investigated here, a-clordane, endrín and aldrín were detected in both fish species. In one of the species studies, it was observed that when weight and size of fishes incresed the pesticides concentration also increased. The concentration levels of OCPs were in the range of 0.35-3.75 and 0.48-5.49 ng/g for moncholo (Hoplias malabaricus) and bocachico (Prochilodus magdalenae) respectively. Conclusions. The frequency of OCPs and the levels detected in these species might be the result of anthropogenic activities conducted in the vicinity of the lake. The correlation between the biometric measurements and concentration was depending on the fish species. The concentrations found in the studied species Hoplias malabaricus and Prochilodus magdalenae do not represent an immediately lethal toxicity.
Authors and Affiliations
Edineldo Lans C, M. Sc *| Universidad de Córdoba, Facultad de Ciencias Básicas e ingenierías, Instituto Regional del Agua (IRAGUA) Grupo de Investigación en Aguas Pesticidas y Metales Pesados “GIAMP”, Montería-Colombia.Correspondencia: edlans@sinu.unicordoba.edu.co., Basilio Díaz P, Qco| Universidad de Córdoba, Facultad de Ciencias Básicas e ingenierías, Instituto Regional del Agua (IRAGUA) Grupo de Investigación en Aguas Pesticidas y Metales Pesados “GIAMP”, Montería-Colombia, Manuel Paez M, Ph. D| Universidad de Córdoba, Facultad de Ciencias Básicas e ingenierías, Instituto Regional del Agua (IRAGUA) Grupo de Investigación en Aguas Pesticidas y Metales Pesados “GIAMP”, Montería-Colombia
Keywords
Related Articles
- EP ID EP3194
- DOI -
- Views 363
- Downloads 28
Corn grain processing on the kinetics of in vitro dry matter degradation
Objective. Determine the effect of processing corn grain on the kinetics of degradation and in vitro fermentation of dry matter. Materials and methods. There were five treatments, each one consisting of a mixture of two...
Evaluation of the hemogram in healthy canines under cisplatin therapy
Objective. To evaluate the average values of the hemogram test in healthy dogs during chemotherapy with cisplatin. Materials and methods. The hemogram parameters of eight healthy canines, which underwent therapy with cis...
Monitoring rumen environment in finishing Lidia bulls
Objective. The aim of this work was to characterize the changes in rumen pH and temperature in finishing Lidia breed bulls reared on pasture and fed a total mixed ration (TMR). Materials and methods. Five 4-year-old Lidi...
Trophic ecology of Brycon henni (Pisces: Characidae) in the Portugal de Piedras river, upper Cauca basin, Colombia
Objetive. Study the trophic ecology of the sabaleta (Brycon henni) on the river Portugal de Piedras, from eastern range, department of Valle del Cauca. Materials and methods. During a 9 months period (October 2008 - June...
Cognitive dysfunction syndrome in senior canines
During their senior life, some dogs may show progressive changes in their normal behavior such as disorientation, decreased interaction with family members, irritability and excessive vocalization, among others. The non-...