Biodiversity assessment in the near-shore waters of Tianjin city, China based on the Pressure-State-Response (PSR) method

Jianbo Tu; Mengmeng Wan; Yanshan Chen; Liju Tan; Jiangtao Wang

doi:10.1016/j.marpolbul.2022.114123

Biodiversity assessment in the near-shore waters of Tianjin city, China based on the Pressure-State-Response (PSR) method

Mar Pollut Bull. 2022 Nov:184:114123. doi: 10.1016/j.marpolbul.2022.114123. Epub 2022 Sep 18.

Authors

Jianbo Tu¹, Mengmeng Wan², Yanshan Chen², Liju Tan², Jiangtao Wang³

Affiliations

¹ Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; Tianjin Marine Environmental Monitoring Central Station of State Oceanic Administration of China, Tianjin 300457, China.
² Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
³ Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China. Electronic address: jtwang@ouc.edu.cn.

PMID: 36126484
DOI: 10.1016/j.marpolbul.2022.114123

Abstract

Parameters regarding water quality, biology, marine disasters, and anthropogenic factors were collected and analyzed from 2020 to 2021 to evaluate the marine biodiversity of Tianjin's near-shore sea area accurately. A total of 29 indicators obtained from the surveys were selected to form the biodiversity evaluation system. The Pressure-State-Response (PSR) framework model combined with the ecological environment characteristics was used as the assessment method. The analytic hierarchy process (AHP) determined the weights of each indicator. The results showed that the main influencing factors of the water environment for species diversity monitoring were dissolved inorganic nitrogen (DIN) and chemical oxygen demand (COD), and all water quality monitoring items were relatively stable without obvious pollution. The biomass of biological species in the near-shore sea area of Tianjin was relatively low, the species distribution was uneven, and the structure and function of the ecosystem need to be improved since environmental problems still existed.

Keywords: Assessment; Marine biodiversity; Near-shore waters; PSR model; Tianjin.

MeSH terms

Biodiversity
China
Ecosystem*
Environmental Monitoring* / methods
Nitrogen
Water Quality

Substances

Nitrogen