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| DOI | 10.1016/j.rsma.2024.103493 |
| The impact of glacial meltwater on the integrated bioenergetic condition of two key antartic benthic polychaetes (Maldane sarsi antarctica, Notomastus latericeus) | |
| 发表日期 | 2024 |
| ISSN | 2352-4855 |
| 起始页码 | 73 |
| 卷号 | 73 |
| 英文摘要 | In coastal Antarctic environments, glacial meltwater changes the nutrients and physicochemical parameters in the water column. Consequently, top-down cascading effects are triggered throughout the food web, which can affect the bioenergetic condition of benthic invertebrates and their coupling processes between energy levels and flows throughout the marine food web. In this study, two benthic polychaetes (Maldane sarsi antarctica and Notomastus latericeus), exposed to the impact of glacial melting over a broad time scale, were used to evaluate the effect of glacial meltwater on their bioenergetic condition through the integrated analysis of: i) their biochemical composition; ii) fatty acid profiles and iii) total energy contents. The findings indicate that glacial meltwater has a direct effect on the bioenergetic condition of polychaetes. In areas where glacial meltwater has a significant impact, N. latericeus showed higher levels of proteins and glucose, but lower levels of lipids. On the other hand, M. sarsi antarctica exhibited decreased protein content with increasing glacial meltwater impact. M. sarsi antarctica presented varying levels of lipids across different sites, with the highest concentrations observed in areas with moderate impact. Both species showed a reduction in fatty acids with increasing glacial meltwater impact. Additionally, M. sarsi antarctica individuals from highly impacted areas had lower energy levels than those from less impacted areas, while N. latericeus had higher energy levels in the most impacted site. This information enables the development of a framework for assessing the impact of climate change using glacial meltwater and the integrated bioenergetics of key benthic polychaeta as a proxy. Therefore, identifying how glacial meltwater affects their bioenergetic condition helps us understand how climate change could affect trophic interactions, structure, and energy flows in the Antarctic marine food web. |
| 英文关键词 | Climate change; Antarctic; Marine food webs; Invertebrates; Biochemical composition; Fatty acids |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| WOS类目 | Ecology ; Marine & Freshwater Biology |
| WOS记录号 | WOS:001215521100001 |
| 来源期刊 | REGIONAL STUDIES IN MARINE SCIENCE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/309075 |
| 作者单位 | University of Tasmania; Universidad Catolica de la Santisima Concepcion; Universidad Catolica de la Santisima Concepcion; Universidad Catolica de la Santisima Concepcion |
| 推荐引用方式 GB/T 7714 | . The impact of glacial meltwater on the integrated bioenergetic condition of two key antartic benthic polychaetes (Maldane sarsi antarctica, Notomastus latericeus)[J],2024,73. |
| APA | (2024).The impact of glacial meltwater on the integrated bioenergetic condition of two key antartic benthic polychaetes (Maldane sarsi antarctica, Notomastus latericeus).REGIONAL STUDIES IN MARINE SCIENCE,73. |
| MLA | "The impact of glacial meltwater on the integrated bioenergetic condition of two key antartic benthic polychaetes (Maldane sarsi antarctica, Notomastus latericeus)".REGIONAL STUDIES IN MARINE SCIENCE 73(2024). |
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