京畿湾陆源污染梯度对大型底栖生物群落和生态质量的响应

IF 4.9 3区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Hanna Bae, Taewoo Kim, Dong-U Kim, Jeonghyeon Kim, Jongseong Ryu, Jong Seong Khim
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引用次数: 0

摘要

在韩国黄海半封闭的京畿湾(Yellow Sea, Korea)沿4条排放样带分布的23个站点对海洋生态系统进行了调查,以评估沉积物质地和污染物对大型底栖生物群落的影响。共记录到186种,但丰富度在最内站呈下降趋势。高度简化群落以小头草(Capitella capitata)和丝状异花草(Heteromastus filiformis)两种机会性物种为主。群落组成主要受分选和污染物的影响,特别是铜、镉、总有机碳和多环芳烃,而不是与潜在污染源的距离。基于多样性的指标跟踪有机富集,而耐受性加权分数与持久性有毒物质一致,揭示了当使用单一指数时错误分类的风险。大型底栖生物群落可作为污染指标,并为沿海综合监测战略提供信息。因此,将互补指数与化学数据相结合,可以提供更清晰的环境压力“指纹”,并为沿海围场斑块污染的台站尺度管理提供更有力的依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Responses of macrobenthic communities and ecological quality along land-derived pollution gradients in Gyeonggi Bay.

Marine ecosystems in semi-enclosed Gyeonggi Bay (Yellow Sea, Korea) were surveyed at 23 stations arrayed along four discharge transects to evaluate how sediment texture and contaminants influence macrobenthic communities. A total of 186 species were recorded, yet richness tends to decrease at innermost stations. Highly simplified communities were dominated by two opportunistic species, Capitella capitata and Heteromastus filiformis. Community composition was strongly influenced by sorting and contaminants, particularly copper, cadmium, total organic carbon, and polycyclic aromatic hydrocarbons rather than distance from potential pollution sources. Diversity-based metrics tracked organic enrichment, whereas tolerance-weighted scores aligned with persistent toxic substances, revealing the risk of misclassification when a single index is used. Macrobenthic communities serve as indicators of pollution and inform integrated coastal monitoring strategies. Integrating complementary indices with chemical data therefore provides a clearer "fingerprint" of environmental stress and a stronger basis for station-scale management of patchy pollution in coastal embayment.

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来源期刊
Marine pollution bulletin
Marine pollution bulletin 环境科学-海洋与淡水生物学
CiteScore
10.20
自引率
15.50%
发文量
1077
审稿时长
68 days
期刊介绍: Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.
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