Characterization of sediment contamination and benthic habitat response in mangrove ecosystems of Hainan Province

IF 2.8 2区生物学 Q1 MARINE & FRESHWATER BIOLOGY

Frontiers in Marine Science Pub Date : 2025-05-29 DOI:10.3389/fmars.2025.1542864

Fa Zheng, Zanhui Huang, Zeheng Chen, Jiahui Liu, Mingliang Zhou, Weipin Ding, Xiong Guo, Liang Chen, Zhaofan Wang, Yan Xu

{"title":"Characterization of sediment contamination and benthic habitat response in mangrove ecosystems of Hainan Province","authors":"Fa Zheng, Zanhui Huang, Zeheng Chen, Jiahui Liu, Mingliang Zhou, Weipin Ding, Xiong Guo, Liang Chen, Zhaofan Wang, Yan Xu","doi":"10.3389/fmars.2025.1542864","DOIUrl":null,"url":null,"abstract":"IntroductionChina's rapid economic growth has led to escalating environmental pollution, significantly impacting mangrove ecosystems. The persistence and response to pollution in mangrove ecosystems involve multiple processes, including the accumulation of contaminants in sediments, their transport in plants, and their accumulation in other organisms. However, comprehensive studies on the multidimensional interactions among these processes are limited.MethodsThis study investigated two mangrove forest areas in Hainan, which were categorized according to the type of mangrove forest cover: planted forests and natural forests. Thirty sampling sites were established to collect data on benthic organisms and their sediment characteristics.ResultsElemental As showed moderate, ongoing pollution. The distribution of species in the two regions showed significant population differences. The benthic population density in the natural forest was significantly lower than that in the planted forest, which was mainly due to the prevalence of Batillaria cumingi, and biodiversity indices and habitats in the natural forest were superior to those in the planted forest, which mainly depended on the degree of anthropogenic disturbance. Total phosphorus, nitrogen, dissolved solids, Hg, and sand grains were the most important variables.DiscussionTotal phosphorus and total nitrogen were the most important environmental factors affecting community composition, while total dissolved solids influenced overall changes in species composition, highlighting the significant influence of the type of mangrove cover on sediment pollution and environmental factors, leading to significant changes in the biomass and density of benthic organisms. This study emphasizes the complex interactions among sediment contamination, mangrove cover, and benthic communities, providing a three-dimensional view of the distribution patterns of mangrove contamination.","PeriodicalId":12479,"journal":{"name":"Frontiers in Marine Science","volume":"1 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers in Marine Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3389/fmars.2025.1542864","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

IntroductionChina's rapid economic growth has led to escalating environmental pollution, significantly impacting mangrove ecosystems. The persistence and response to pollution in mangrove ecosystems involve multiple processes, including the accumulation of contaminants in sediments, their transport in plants, and their accumulation in other organisms. However, comprehensive studies on the multidimensional interactions among these processes are limited.MethodsThis study investigated two mangrove forest areas in Hainan, which were categorized according to the type of mangrove forest cover: planted forests and natural forests. Thirty sampling sites were established to collect data on benthic organisms and their sediment characteristics.ResultsElemental As showed moderate, ongoing pollution. The distribution of species in the two regions showed significant population differences. The benthic population density in the natural forest was significantly lower than that in the planted forest, which was mainly due to the prevalence of Batillaria cumingi, and biodiversity indices and habitats in the natural forest were superior to those in the planted forest, which mainly depended on the degree of anthropogenic disturbance. Total phosphorus, nitrogen, dissolved solids, Hg, and sand grains were the most important variables.DiscussionTotal phosphorus and total nitrogen were the most important environmental factors affecting community composition, while total dissolved solids influenced overall changes in species composition, highlighting the significant influence of the type of mangrove cover on sediment pollution and environmental factors, leading to significant changes in the biomass and density of benthic organisms. This study emphasizes the complex interactions among sediment contamination, mangrove cover, and benthic communities, providing a three-dimensional view of the distribution patterns of mangrove contamination.

查看原文本刊更多论文

海南红树林生态系统沉积物污染特征及底栖生物栖息地响应

中国经济的快速增长导致环境污染加剧，严重影响了红树林生态系统。红树林生态系统对污染的持续和响应涉及多个过程，包括污染物在沉积物中的积累、它们在植物中的运输以及它们在其他生物中的积累。然而，对这些过程之间多维相互作用的全面研究还很有限。方法对海南2个红树林区进行调查，按红树林覆盖类型分为人工林和天然林。建立了30个采样点，收集底栖生物及其沉积物特征的数据。结果a元素为中度、持续性污染。两个地区的物种分布存在显著的种群差异。天然林底栖动物种群密度显著低于人工林，这主要是由于刺槐的盛行，天然林的生物多样性指数和生境优于人工林，这主要取决于人为干扰的程度。总磷、氮、溶解固形物、汞和沙粒是最重要的变量。讨论总磷和总氮是影响群落组成的最重要环境因子，而总溶解固形物影响物种组成的整体变化，突出红树林覆盖类型对沉积物污染和环境因子的显著影响，导致底栖生物生物量和密度发生显著变化。本研究强调了沉积物污染、红树林覆盖和底栖生物群落之间复杂的相互作用，提供了红树林污染分布格局的三维视图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Frontiers in Marine Science Agricultural and Biological Sciences-Aquatic Science

CiteScore

5.10

自引率

16.20%

发文量

2443

审稿时长

14 weeks

期刊介绍： Frontiers in Marine Science publishes rigorously peer-reviewed research that advances our understanding of all aspects of the environment, biology, ecosystem functioning and human interactions with the oceans. Field Chief Editor Carlos M. Duarte at King Abdullah University of Science and Technology Thuwal is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, policy makers and the public worldwide. With the human population predicted to reach 9 billion people by 2050, it is clear that traditional land resources will not suffice to meet the demand for food or energy, required to support high-quality livelihoods. As a result, the oceans are emerging as a source of untapped assets, with new innovative industries, such as aquaculture, marine biotechnology, marine energy and deep-sea mining growing rapidly under a new era characterized by rapid growth of a blue, ocean-based economy. The sustainability of the blue economy is closely dependent on our knowledge about how to mitigate the impacts of the multiple pressures on the ocean ecosystem associated with the increased scale and diversification of industry operations in the ocean and global human pressures on the environment. Therefore, Frontiers in Marine Science particularly welcomes the communication of research outcomes addressing ocean-based solutions for the emerging challenges, including improved forecasting and observational capacities, understanding biodiversity and ecosystem problems, locally and globally, effective management strategies to maintain ocean health, and an improved capacity to sustainably derive resources from the oceans.