Abnormal test growth in Larger Benthic Foraminifera from hypersaline coastal ponds of the United Arab Emirates

IF 1.3 4区 地球科学 Q3 PALEONTOLOGY
Flavia Fiorini, S. Lokier
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引用次数: 2

Abstract

The larger benthic foraminifera (LBF) assemblage from shallow hypersaline coastal ponds located in the intertidal area of theUnitedArab EmirateWestern Region was investigated. The studied coastal ponds are located between a lagoonal areawith carbonate sedimentation, and a supratidal, evaporite-dominated, sabkha. Epiphytic larger benthic foraminifera, mostly belonging to the genus Peneroplis, dominate the benthic foraminifera assemblage. At all the sampled locations, the larger benthic foraminifera assemblage is characterised by high percentages of tests with abnormal growth. Dissolution and microboring are also common on the majority of LBF tests. The high percentage of abnormal tests reflects natural environmental stress caused by the instability of physical parameters (particularly high and variable salinity and temperature) in this transitional marine environment. The unique presence of epiphytic species in some of the ponds suggests that epiphytic foraminifera are transported into the ponds attached to floating seagrass and subsequently continue to live in the stressed pond environment.
阿拉伯联合酋长国高盐海岸池塘中大型底栖有孔虫的异常试验生长
本文调查了阿联酋西部潮间带浅海高盐滨海池塘的大型底栖有孔虫(LBF)群落。研究的沿海池塘位于碳酸盐岩沉积的泻湖区和以蒸发岩为主的潮上湖区之间。附生的大型底栖有孔虫,主要属于Peneroplis属,在底栖有孔虫群中占主导地位。在所有取样地点,较大的底栖有孔虫组合的特点是具有异常生长的测试百分比很高。溶解和微钻孔在大多数LBF测试中也很常见。异常试验的高比例反映了这种过渡海洋环境中物理参数的不稳定性(特别是高而多变的盐度和温度)造成的自然环境应力。附生有孔虫在一些池塘中独特的存在表明附生有孔虫被运输到附着在漂浮海草上的池塘中,随后继续生活在压力池塘环境中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Micropaleontology
Micropaleontology 地学-古生物学
CiteScore
3.20
自引率
6.70%
发文量
18
审稿时长
>12 weeks
期刊介绍: The Journal of Micropalaeontology (JM) is an established international journal covering all aspects of microfossils and their application to both applied studies and basic research. In particular we welcome submissions relating to microfossils and their application to palaeoceanography, palaeoclimatology, palaeobiology, evolution, taxonomy, environmental change and molecular phylogeny. Owned by The Micropalaeontological Society, the scope of the journal is broad, demonstrating the application of microfossils to solving broad geoscience issues.
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