Species and functional diversity of marine macrobenthic community and benthic habitat quality assessment in semi-enclosed waters upon recovering from eutrophication, Bohai Bay, China.

Mar Pollut Bull

Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin 300457, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan 430074, China; College of Marine Science and Technology, China University of Geosciences (Wuhan), Wuhan 430074, China; Institute for Advanced Marine Research, China University of Geosciences, Guangzhou 511462, China. Electronic address:

Published: August 2022

AI Article Synopsis

  • * Researchers collected 166 species during summer and autumn, noting an increase in sensitive species, suggesting a positive shift in biodiversity compared to earlier data.
  • * Despite these improvements, the community is still in the early stages of recovery, and issues like habitat instability are hindering its full response to enhanced water quality; most of the bay is classified as having good ecological status, but some areas remain poor.

Article Abstract

This study investigated the structure and function of macrobenthic community in Bohai Bay upon improvement of water quality due to pollution abatement. A total of 166 species were collected in the summer and autumn sampling, with an increase in sensitive species recorded as compared to data from previous studies. While historical variations in species richness indicated signs of improvement in community structure, results of functional diversity indices revealed that the macrobenthic community in Bohai Bay was still in an early stage of recovery. From BIO-ENV analysis, habitat instability may hinder how community responded to water quality improvement. Results of the benthic habitat quality assessment also indicated that the ecological status in most areas of Bohai Bay was classified as good, while a few estuarine regions were categorized in a poor status.

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Source
http://dx.doi.org/10.1016/j.marpolbul.2022.113918DOI Listing

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