用南大洋痕量金属和原核生物分类群的协方差标记水团

IF 5.1 2区 地球科学 Q1 LIMNOLOGY Limnology and Oceanography Letters Pub Date : 2024-08-22 DOI:10.1002/lol2.10429
Rui Zhang, Stéphane Blain, Corentin Baudet, Hélène Planquette, Frédéric Vivier, Philippe Catala, Olivier Crispi, Audrey Guéneuguès, Barbara Marie, Pavla Debeljak, Ingrid Obernosterer
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引用次数: 0

摘要

海洋微生物与海洋中的痕量金属密切相关。人们对痕量金属如何选择原核生物类群以及微生物过程对海洋痕量金属分布的潜在反馈作用仍然知之甚少。我们在此研究了南印度洋(SWINGS-西南印度洋 GEOTRACES GS02 航段)12 个明确界定的水团中不同原核生物类群与铁(Fe)、锰(Mn)、铜(Cu)和镍(Ni)以及表观氧利用率(AOU)之间的潜在相互联系。通过偏最小二乘法回归(PLSR)分析,我们发现这些水团与特定的潜在矢量有关,这些矢量是原核生物分类群、痕量元素和表观氧利用率空间分布的组合。这种方法为原核生物类群与痕量金属之间的潜在相互作用提供了新的见解,这种相互作用与海洋中不同水团的有机物再矿化有关。
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Tagging of water masses with covariance of trace metals and prokaryotic taxa in the Southern Ocean

Marine microbes are strongly interrelated to trace metals in the ocean. How the availability of trace metals selects for prokaryotic taxa and the potential feedback of microbial processes on the trace metal distribution in the ocean remain poorly understood. We investigate here the potential reciprocal links between diverse prokaryotic taxa and iron (Fe), manganese (Mn), copper (Cu), and nickel (Ni) as well as apparent oxygen utilization (AOU) across 12 well-defined water masses in the Southern Indian Ocean (SWINGS—South West Indian Ocean GEOTRACES GS02 Section cruise). Applying partial least square regression (PLSR) analysis, we show that the water masses are associated with particular latent vectors that are a combination of the spatial distribution of prokaryotic taxa, trace elements, and AOU. This approach provides novel insights on the potential interactions between prokaryotic taxa and trace metals in relation to organic matter remineralization in distinct water masses of the ocean.

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来源期刊
CiteScore
10.00
自引率
3.80%
发文量
63
审稿时长
25 weeks
期刊介绍: Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.
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