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 353
- Downloads 28
Clinical evaluation of umbilical hernia surgery in calves: use of autogenous abdominal fascia
Objective. To evaluate from a clinical point of view the umbilical hernia surgery in calves by using autogenous abdominal fascia. Material and methods. Five Brahman calves were used (6-12 months) average weight of 200 kg...
Foraging density for squirrel monkey Saimiri sciureus in two forests in Puerto Lopez - Colombia
Objective. Forest remnants were analyzed to determine the density of squirrel monkeys (Saimiri sciureus) and the degree of alteration of the forest, by selecting areas for the conservation and maintenance of the species...
Effect of cholesterol and dimethiyl-formamide on post-thawing parameters in Colombian creole stallion sperm
Objective. To evaluate the effect of cholesterol and dimethyl formamide on the cryosurvival of colombian creole stallion sperm. Materials and methods. Semen from ten stallions was collected and frozen using the same prot...
An age structured model for obesity prevalence dynamics in populations
Objective. Modeling the correlation of the development of obesity in a population with age and time and predict the dynamics of the correlation of the development of obesity in a population with age and time under differ...
Application of the logistic model to describe the growth curve in dogs of different breeds
Objective. To model the growth in dogs of different size and breeds that during their development showed a relative body weight according to the standards of their racial group. Materials and methods. The data used were...