title: Icefish (salangidae) as an indicator of anthropogenic pollution in freshwater systems using nitrogen isotope analysis.
abstract: We investigated differences in delta(15)N of seston and icefishes from seven freshwater ecosystems with different trophic states in China. An increase of seston delta(15)N values was accompanied by an increase of total nitrogen and phosphorus concentrations. Significantly positive correlations were observed between delta(15)N of icefishes and delta(15)N of seston, total nitrogen and phosphorus concentrations. This study demonstrated that icefishes could be preferred indicators of anthropogenic contamination in test systems because they integrated waste inputs over long time periods and reflected the movement of waste through the pelagic food chain.
authors.affiliation: Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Science, Wuhan, 430072, People's Republic of China.
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Ping
authors.initials: P
authors.lastname: Xie
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Qiong
authors.initials: Q
authors.lastname: Zhou
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Zhourui
authors.initials: Z
authors.lastname: Wen
authors.forename: T
authors.initials: T
authors.lastname: Cao
mesh_terms: D000818:Animals; D004784:Environmental Monitoring / Q000379:methods; D005618:Fresh Water / Q000032:analysis; D009584:Nitrogen / Q000032:analysis*; D009587:Nitrogen Isotopes / Q000032:analysis* / Q000378:metabolism; D010758:Phosphorus / Q000032:analysis*; D017858:Salmoniformes / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014876:Water Pollution / Q000032:analysis
chemical_list: D009587:Nitrogen Isotopes; D014874:Water Pollutants, Chemical; D010758:Phosphorus; D009584:Nitrogen