National Research Council, Institute of Geosciences and Earth Resources, Via Gradenigo, 6, 35131 Padova, Italy.
Formerly National Research Council - Institute of Marine Sciences, Castello 2737/F, 30122 Venice, Italy.
Mar Pollut Bull. 2021 Jun;167:112323. doi: 10.1016/j.marpolbul.2021.112323. Epub 2021 Apr 14.
Through the analysis of benthic foraminifera in the soft bottom sediments of the Laizhou Bay - Yellow River Delta system, this study characterized the foraminiferal biotopes and explored the possibility of obtaining an index of ecological quality comparable with other estuarine and coastal environments of the world. Five foraminiferal biotopes have been identified and their distribution patterns highlight the ecological stress from the marine-fluvial water mixing and pollution. The foraminiferal species were analyzed as a function of organic carbon gradients, and the main species were assigned to four ecological groups based on their sensitivity/tolerance towards an increasing stress gradient. Finally, the relative proportions of the species assigned to the four different ecological groups were used for the definition of a marine biotic index based on foraminifera, i.e. the Foram-AMBI, and thus the assessment of the ecological quality status of marine soft-bottom habitats.
通过对莱州湾-黄河三角洲系统软底沉积物中底栖有孔虫的分析，本研究描述了有孔虫生物栖息地，并探讨了获得与世界其他河口和沿海环境可比的生态质量指数的可能性。已确定了五个有孔虫生物栖息地，其分布模式突出了海洋-河流混合和污染造成的生态压力。根据有机碳梯度分析了有孔虫物种，根据对不断增加的压力梯度的敏感性/耐受性，将主要物种分配到四个生态组中。最后，将分配给四个不同生态组的物种的相对比例用于定义基于有孔虫的海洋生物指数，即 Foram-AMBI，从而评估海洋软底生境的生态质量状况。
