Evaluación de algunos marcadores de exposición a contaminantes en tres especies de bagres colombianos (Pisces: Siluriformes)
Evaluación de algunos marcadores de exposición a contaminantes en tres especies de bagres colombianos (Pisces: Siluriformes)
复制标题
Evaluación de algunos marcadores de exposición a permanentes en tres especies de bagres colombianos (双鱼座：鲶形目)
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
L. Rodríguez
中科院分区：
文献类型：
--
作者：
M. J. González;M. A. Landines;Javier F. Borbón;María L. Correal;C. Sanchez;L. Rodríguez
三种鲶鱼的成熟标本：Capitan de la Sabana (Eremophilus mutisii)、Bagre Rayado (Pseudoplatystoma orinocoense 和 P. metense) 和 Capaz (Pimelodusgroskopfii)（n=9-27/种）分别在波哥大河、洛佩斯港（梅塔）和贝塔尼亚大坝（哥伦比亚威拉）地区取样。研究了血铅水平、血浆胆碱酯酶（ChE）活性和红细胞微核。对每个地点的水样进行理化参数、金属（铅、镉、铁和锌）、总石油烃（TPH）、苯并[a]芘、有机磷酸盐/氨基甲酸酯以及除草剂草甘膦和莠去津的筛选测试进行分析。在这些鱼中的主要发现是，93% 的 Capitanes、44% 的 Bagres 和 28% 的 Capaces 的血液中铅含量高于 3.3 I/dL，并且与 Bagre Rayado 和 Capaz 相比，Capitan 的 ChE 活性较低。在任何物种中均未发现大量微核。在水样中，波哥大河（苏埃斯卡）中发现了 7-14 ppm 等量的总石油烃，梅塔河中发现了 1.5-3.5 ppm 等量的总石油烃。在梅塔河中发现了草甘膦含量（0.5 â 4.0 ppb）。铅的异生性质使其在鱼中的存在成为异常发现，水样中存在 TPH 和草甘膦也是如此。
Mature specimens of three catfishes: Capitan de la Sabana ( Eremophilus mutisii ), Bagre Rayado ( Pseudoplatystoma orinocoense and P. metaense ) and Capaz ( Pimelodus grosskopfii ) (n=9-27/species) were sampled in the areas of Bogota River, Puerto Lopez (Meta) and Betania Dam (Huila, Colombia), respectively. Levels of blood lead, plasma cholinesterase (ChE) activity and erythrocytic micronuclei were investigated. Water samples from each location were analyzed for physico-chemical parameters, metals (lead, cadmium, iron and zinc), total petroleum hydrocarbons (TPHs), benzo[a]pyrene, screening test for organophosphates/carbamates and the herbicides glyphosate and atrazine. The main findings in the fish were the presence of lead above 3.3 I¼g/dL in the blood of 93 % of the Capitanes, 44% of the Bagres and 28% of the Capaces, as well as a lower ChE activity in the Capitan as compared to Bagre Rayado and Capaz. No significant numbers of micronuclei were found in any of the species. In the water samples, 7- 14 ppm equivalents of TPHs were found in the Bogota River (Suesca) and 1.5 - 3.5 ppm in the Meta River. Levels of glyphosate (0.5 â 4.0 ppb) were found in the Meta River. The xenobiotic nature of lead makes its presence in the fish an abnormal finding, as is the presence of TPHs and glyphosate in the water samples.