The impact of anthropogenic activities on intertidal macrobenthic biodiversity: A case study in northern Beibu Gulf, China

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management Pub Date : 2025-02-14 DOI:10.1016/j.ocecoaman.2025.107585

Guanggu Lei , Linmei Chen , Wei Wang , Wenhui Li , Ying Huang , Xin Yang , Karsoon Tan , Kit Yue Kwan

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引用次数: 0

Abstract

Macrobenthos are crucial for maintaining the ecological balance of aquatic ecosystems. Given the high macrobenthic biodiversity of Beibu Gulf and its rapid economic development, this study evaluates the current state of the macrobenthic community and the impact of anthropogenic activities. The present study identified 82 macrobenthic species from the intertidal zones of northern Beibu Gulf, China, primarily mollusks (43.9%) and annelids (31.7%). The density and biomass of intertidal macrobenthos ranged from 113.45 ± 86.59 to 582.40 ± 179.07 ind./m² and 76.39 ± 111.46 to 786.12 ± 609.17 g/m², respectively. The Shannon-Weiner-Index, Margalef richness index, and Pielou evenness index ranged from 1.01 to 1.99, 1.38 to 2.52, and 0.80 to 1.38, respectively, suggested moderate anthropogenic influence. The dominant species were Pillucina vietnamica (Zorina, 1978), Cryptonetna producta (Kuroda & T. Habe, 1951), Praxillella cf. Affinis (M. Sars in G.O. Sars, 1872), Mictyris brevidactylus (Stimpson, 1858), and Cerithidea cingulata (Gmelin, 1791). One-way ANOSIM and MDS plots revealed that the intertidal macrobenthos formed three clusters: macrobenthos in the river mouth formed a single cluster, macrobenthos in areas with intensive human activity (factories, aquaculture, rural villages) formed another cluster, and macrobenthos in regions with less anthropogenic impact (near to urban city with sufficient sewage management system and nuclear power plant) formed a third cluster. Correlation analyses revealed that macrobenthos density, biomass, and biodiversity were mainly negatively associated with chlorophyll-a, total organic content, and sulfide levels. These findings provide valuable information on the current status of macrobenthic biodiversity in the northern Beibu Gulf, China. This information can serve as a guide for coastal planning and environmental management in the northern Beibu Gulf, China.

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来源期刊

Ocean & Coastal Management 环境科学-海洋学

CiteScore

8.50

自引率

15.20%

发文量

321

审稿时长

60 days

期刊介绍： Ocean & Coastal Management is the leading international journal dedicated to the study of all aspects of ocean and coastal management from the global to local levels. We publish rigorously peer-reviewed manuscripts from all disciplines, and inter-/trans-disciplinary and co-designed research, but all submissions must make clear the relevance to management and/or governance issues relevant to the sustainable development and conservation of oceans and coasts. Comparative studies (from sub-national to trans-national cases, and other management / policy arenas) are encouraged, as are studies that critically assess current management practices and governance approaches. Submissions involving robust analysis, development of theory, and improvement of management practice are especially welcome.