Persistent Organic Pollutants and Heavy Metals and the Importance of Fish as a Bio-Indicator of Environmental Pollution
Journal Title: Concepts of Dairy & Veterinary Sciences - Year 2019, Vol 2, Issue 2
Abstract
Nowadays water pollution is the burning issue all over the world. Aquatic ecosystems are frequently contaminated with different toxicants through anthropogenic activities, and some of them such as metals may be naturally present and essential in low concentration but toxic and harmful in higher concentrations. Having in mind that not all chemical forms of pollutants are equally bioavailable, and some pollutants can be accumulated in living organisms to a greater extent than others, there is a need to study the levels of pollutants in the organisms to be able to predict the environmental risk. Thus, chemical analyses of the tissues of aquatic organisms are used as a routine approach in studies of aquatic pollution, providing a temporal integration of the levels of pollutants with biological relevance at higher concentrations than those present in water or sediment, and facilitating their quantification [1]. Fish are among the group of aquatic organisms which represent the largest and most diverse group of vertebrates. A number of characteristics make them excellent experimental models for toxicological research, especially for the contaminants which are likely to exert their impact on aquatic systems [2]. Due to feeding and living in the aquatic environments fish are particularly vulnerable and heavily exposed to pollution because they cannot escape from the detrimental effects of pollutants. Fish, in comparison with invertebrates, are more sensitive to many toxicants and are a convenient test subject for indication of ecosystem health.
Authors and Affiliations
Tamer Tashla, Radivoj Prodanović, Jelana Bošković, Milena Žuža, Dragan Soleša, Dragana Ljubojević, Nikola Puvača
Keywords
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- EP ID EP594283
- DOI 10.32474/CDVS.2018.02.000131
- Views 74
- Downloads 0
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