印度西海岸不同气候带硅藻的响应

IF 0.5 4区 地球科学 Q4 PALEONTOLOGY Journal of the Palaeontological Society of India Pub Date : 2023-09-14 DOI:10.1177/05529360231182261
Pooja Tiwari, Purnima Srivastava, Biswajeet Thakur
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引用次数: 0

摘要

海岸边缘及其生态环境是世界上最壮丽的地貌之一。长期以来,不同生物和非生物成分之间复杂的相互作用表明,由于气候变化,沿海地区,作为先驱地区之一,受到了影响,而且这种影响可能会继续下去。微化石的作用有助于描绘过去的气候表现和全球变化,其中硅藻也为推断动态海岸系统中过去的气候和生态变异提供了有价值的工具。在这项研究中,研究人员对来自印度西海岸不同气气带的77个现代样本进行了研究,以获得有关当今气候状况的知识,并记录了对环境敏感的硅藻,以形成沿海环境的现代模拟物。该研究显示了浮游硅藻和底栖硅藻的各种关联,为硅藻及其与气候区域和生态状况的关系提供了宝贵的信息。浮游和底栖硅藻频率的变化影响着水位、pH值、盐度变化、潮汐变异性和营养状况。因此,该研究旨在为印度西海岸不同气气带的硅藻提供一个强大的数据库,并将不可避免地填补初级生产力方面的知识空白。研究还旨在为陆洋过渡带的长期古气候记录重建提供基于传递的背景。
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Diatom response in different climatic zones from west coast of India
Coastal margins and their ecological setting are one of the magnificent landforms on globe. The complex interaction among the different biotic and abiotic components through ages has addressed that due to climatic changes the coastal regions, one of the pioneer regions, have been getting affected and this may continue in the future also. The role of microfossils through ages has helped in delineating the past climatic manifestations and global changes and amongst them diatoms also provide a valuable tool for inferring past climate and ecological variability in the dynamic coastal system. In the study, a modern set of 77 samples from different climatic zones along the west coast of India has been studied to gain knowledge about the present-day climate status and record environmentally susceptible diatoms to form a modern analogue for coastal settings. The study shows various associations of planktic and benthic diatoms that hitherto provide precious information about the diatoms and their relation to the climatic regions and ecological status. The change in the frequency of planktic and benthic diatoms inculcate the water levels, pH, salinity changes, tidal variability and trophic status. Hence, the study aims to provide a robust database on diatoms for the various climatic zones from the west coast of India and would inevitably fill knowledge gap in terms of primary productivity for broad implications. The study also aims to provide background for transfer-based function for the reconstruction of long-term palaeoclimatic records for the transition zone of terrestrial and oceanic realms.
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来源期刊
CiteScore
1.10
自引率
16.70%
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0
期刊介绍: The journal is devoted to the publication of original papers and review articles dealing with all aspects of Paleontology, Paleobotany, Stratigraphy, Geochronology, Anthropology and Pre-history.
期刊最新文献
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