Holistic Impact Evaluation of Human Activities on the Coastal Fish Biodiversity in the Chinese Coastal Environment

• DOI: 10.1021/acs.est.2c01339
• Publication Date: 2022-05-05T10:42:07Z
• Authors: Wenjun Zhong; Jinyong Zhang; Zhihao Wang; Jianqing Lin; Xiangyun Huang; Wenhua Liu; Hongjun Li; Loïc Pellissier; Xiaowei Zhang
• Keywords: Coastal fish; Environmental DNA; Marine Pollution

Ecological qualities and resources in coasts are threatened by various human activities, such as pollution fishery. Impact evaluation of environmental stressors over a wide coastal stretch has been limited due to lack efficient standardizable biodiversity monitoring assessment tools. Integrating DNA (eDNA) ecological traits, holistic approach was developed assess the impact aquaculture on fish Chinese areas. Taking Yalujiang Estuary (YLJK) from Yellow Sea Nan'ao Island Area (NAO) South China cases, performance eDNA biomonitoring workflow validated. First, results 22 sampling sites reached more than 85% asymptotes species or ASVs each area. A total 115 both areas were detected NAO 1.8 times richer YLJK using composition consistent with historical data. recovered distinct variations sequence, taxonomic functional diversity, corresponding trends following offshore distance between two Fish sequence diversity decreased primarily estuarine factors (chemical oxygen demand zinc) YLJK. Compared no breeding areas, lower NAO. By integrating offers promising opportunities for future national global environments.