1. Ecogenomics of Zooplankton Community Reveals Ecological Threshold of Ammonia Nitrogen
- Author
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Chao Song, Hongxia Yu, John P. Giesy, Yuwei Xie, Jianghua Yang, Jingying Sun, Xiaowei Zhang, and Yong Zhang
- Subjects
0301 basic medicine ,Aquatic Organisms ,Nitrogen ,Fresh Water ,010501 environmental sciences ,01 natural sciences ,Zooplankton ,03 medical and health sciences ,Nutrient ,Ammonia ,parasitic diseases ,Animals ,Environmental Chemistry ,Ecosystem ,Water pollution ,0105 earth and related environmental sciences ,biology ,Ecology ,fungi ,General Chemistry ,Plankton ,biology.organism_classification ,030104 developmental biology ,Cladocera ,Water quality ,Eutrophication ,Water Pollutants, Chemical - Abstract
Communities of zooplankton can be adversely affected by contamination resulting from human activities. Yet understanding the influence of water quality on zooplankton under field-conditions is hindered by traditional labor-intensive approaches that are prone to incomplete or uncertain taxonomic determinations. Here, for the first time, an eco-genomic approach, based on genetic diversity in the mitochondrial cytochrome c oxidase I (COI) region of DNA of zooplankton was used to develop a site-specific, water quality criterion (WQC) for ammonia (NH3). Ammonia has been recognized as a primary stressor in the catchment of the large, eutrophic Tai Lake, China. Nutrients, especially NH3 and nitrite (NO3–) had more significant effects on structure of the zooplankton community than did other environmental factors. Abundances of rotifers increased along a gradient of increasing concentrations of total ammonia nitrogen (TAN), while abundances of copepods and cladocera decreased. A novel, rapid, species sensitivity d...
- Published
- 2017