Rašković Božidar, Poleksić Vesna, Višnjić-Jeftić Željka, Skorić Stefan, Gačić Zoran, Djikanović Vesna, Jarić Ivan, Lenhardt Mirjana
University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Zemun, Belgrade, Serbia.
University of Belgrade, Institute for Multidisciplinary Research, Kneza Viseslava 1, 11000, Belgrade, Serbia.
Environ Toxicol. 2015 Sep;30(10):1153-61. doi: 10.1002/tox.21988. Epub 2014 Mar 28.
The bottom feeding fish species have a good potential to be used for assessments of pollution, as they are under pressure from pollutants from both water and sediments. In this study, the level of similarity of histopathological responses to pollution in gills and liver between barbel (Barbus barbus) and sterlet (Acipenser ruthenus) from the Danube River was assessed, and compared with elemental concentrations in their gills, liver, and muscle. Results indicate that the detected metal concentrations were likely cause of different tissue responses in gills and liver of the two investigated fish species. Statistical analysis indicated a clear differentiation of the two species based on elemental concentrations and the level of histopathological changes in gills and liver. Metal concentrations exceeded maximum acceptable concentrations in a number of analyzed specimens, which indicates the importance of this type of monitoring. Results indicate that barbel is a better indicator for specific, rather narrow sites, whereas sterlet is a better indicator of larger (longer) water current segments. Obtained information could be of importance for both scientists and fishery and water management authorities working on the development of water monitoring programs.
底层摄食鱼类很有潜力用于污染评估，因为它们受到来自水和沉积物中污染物的双重压力。在本研究中，评估了多瑙河的髯鲤（Barbus barbus）和小体鲟（Acipenser ruthenus）鳃和肝脏中对污染的组织病理学反应的相似程度，并将其与鳃、肝脏和肌肉中的元素浓度进行了比较。结果表明，检测到的金属浓度可能是这两种被调查鱼类鳃和肝脏中不同组织反应的原因。统计分析表明，基于元素浓度以及鳃和肝脏中组织病理学变化的程度，这两个物种有明显差异。在许多分析样本中，金属浓度超过了最大可接受浓度，这表明此类监测的重要性。结果表明，髯鲤是特定、较窄位点的更好指示生物，而小体鲟是较大（较长）水流段的更好指示生物。所获得的信息对于致力于制定水监测计划的科学家以及渔业和水资源管理部门都可能具有重要意义。
