University of Swat, Centre for Animal Sciences and Fisheries, Charbagh, Pakistan.
Women University Mardan, Department of Microbiology, Mardan, Pakistan.
Braz J Biol. 2021 May 28;82:e243633. doi: 10.1590/1519-6984.243633. eCollection 2021.
Snow trout (Schizothorax plagiostomus) is an economically important freshwater fish, mostly found in northern areas of water reservoirs of Pakistan. The current study was conducted in River Swat to analyze the bioaccumulation of heavy metals (Pb, Cr, Ni, and Zn) in tissues of Schizothorax plagiostomus. Tissues were extracted and dissolved in perchloric acid (HClO4) and nitric acid (HNO3) along with hotplate. The heavy metals, zinc (Zn), lead (Pb), chromium (Cr), and Nickel (Ni) were determined using Perkin Elmer 2380 atomic absorption spectrophotometer. Results shows great variation in the content of the metal related to tissue type and sampling sites. A high concentration of bioaccumulation was reported at Charbagh, whereas lowest at Odigram: Charbagh>Landakai>Odigram. In the same way, Cr was the most accumulated heavy metal followed by lead, nickel, and Zinc.
雪鲑（Schizothorax plagiostomus）是一种经济上重要的淡水鱼，主要分布在巴基斯坦水库的北部地区。本研究在斯瓦特河进行，旨在分析雪鲑组织中重金属（Pb、Cr、Ni 和 Zn）的生物累积情况。组织经浓盐酸（HClO4）和硝酸（HNO3）提取并在热板上溶解。使用珀金埃尔默 2380 原子吸收分光光度计测定锌（Zn）、铅（Pb）、铬（Cr）和镍（Ni）等重金属。结果表明，金属含量与组织类型和采样地点有很大差异。Charbagh 处的生物累积浓度较高，而 Odigram 处则较低：Charbagh>Landakai>Odigram。同样，Cr 是累积量最高的重金属，其次是铅、镍和锌。
