Your browser doesn't support javascript.
loading
Holistic Impact Evaluation of Human Activities on the Coastal Fish Biodiversity in the Chinese Coastal Environment.
Zhong, Wenjun; Zhang, Jinyong; Wang, Zhihao; Lin, Jianqing; Huang, Xiangyun; Liu, Wenhua; Li, Hongjun; Pellissier, Loïc; Zhang, Xiaowei.
Afiliação
  • Zhong W; State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P. R. China.
  • Zhang J; State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian 116023, P. R. China.
  • Wang Z; State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P. R. China.
  • Lin J; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou 515063, P. R. China.
  • Huang X; State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P. R. China.
  • Liu W; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, P. R. China.
  • Li H; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou 515063, P. R. China.
  • Pellissier L; State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian 116023, P. R. China.
  • Zhang X; Swiss Federal Research Institute WSL, Birmensdorf 8903, Switzerland.
Environ Sci Technol ; 56(10): 6574-6583, 2022 05 17.
Article em En | MEDLINE | ID: mdl-35510674
ABSTRACT
Ecological qualities and resources in coasts are threatened by various human activities, such as pollution and fishery. Impact evaluation of environmental stressors over a wide coastal stretch has been limited due to lack of efficient and standardizable biodiversity monitoring and assessment tools. Integrating environmental DNA (eDNA) and ecological traits, a holistic approach was developed to assess the impact of pollution and aquaculture on fish biodiversity in Chinese coastal areas. Taking the Yalujiang Estuary (YLJK) from the Yellow Sea and the Nan'ao Island Area (NAO) from the South China Sea as cases, the performance of the eDNA biomonitoring workflow was validated. First, the eDNA results of 22 sampling sites reached more than 85% of the asymptotes of species or ASVs in each area. A total of 115 fish species in both areas were detected and NAO was 1.8 times richer than YLJK using eDNA and the fish eDNA composition was consistent with the historical data. eDNA recovered distinct variations of fish sequence, taxonomic and functional diversity, and the corresponding trends following the offshore distance between the two areas. Fish sequence diversity was decreased primarily by estuarine pollution factors (chemical oxygen demand and zinc) in the YLJK. Compared with no breeding areas, lower fish sequence diversity was in breeding areas in the NAO. By integrating ecological traits, the eDNA approach offers promising opportunities for future fish biodiversity monitoring and assessment in national and global coastal environments.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Código de Barras de DNA Taxonômico / DNA Ambiental Limite: Animals / Humans Idioma: En Revista: Environ Sci Technol Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Código de Barras de DNA Taxonômico / DNA Ambiental Limite: Animals / Humans Idioma: En Revista: Environ Sci Technol Ano de publicação: 2022 Tipo de documento: Article