Paper Push: 2026-07-03
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每日论文推送：BGC-Argo、海色/海洋光学、海洋热浪与碳泵Daily Paper Push: BGC-Argo, ocean colour/ocean optics, marine heatwaves and carbon pump
本期由 GitHub Actions 自动检索生成：Nature/Science 系列优先，其次是用户指定重点期刊，再补充重点关注团队的新论文，最后纳入其他相关期刊；历史去重后保留 7 篇，不超过每日 50 篇上限。 This issue was generated automatically by GitHub Actions: Nature and Science series first, then the user-defined priority journals, then new papers from the focused team, followed by other relevant journals as topical supplements. After deduplication, 7 papers remain, below the daily limit of 50.
Download Word summary
无 mechanism sketch 图。今天的意大利语卡片： No mechanism sketch figure today. Daily Italian card:
每日一句意大利语Daily Italian
Poscia, più che 'l dolor, poté 'l digiuno.
Dante, Commedia, Inferno XXXIII, 75; Italian original from Kalliope
乌戈利诺故事中最可怕的含混句之一，可理解为“后来，饥饿胜过了悲痛”。它的力量来自不说破。
One of Ugolino's most terrible ambiguous lines: afterward, hunger had more power than grief. Its force lies in what it refuses to spell out.
趋势总结Trend Summary
本期重点关注 BGC-Argo、海色遥感/海洋光学、海洋热浪、浮游植物垂向结构和碳泵过程。筛选逻辑不再只限于重点期刊；当高影响力期刊当天新增较少时，会额外检索重点关注团队作者的新论文，并用海洋、海色/光学和碳循环关键词过滤，再从其他相关期刊补充候选论文。
This issue focuses on BGC-Argo, ocean-colour remote sensing, ocean optics, marine heatwaves, vertical phytoplankton structure and carbon-pump processes. The selection is no longer limited to priority journals; when few high-impact papers are newly available, the workflow also checks focused-team authors and filters those papers with ocean, ocean-colour/optics, and carbon-cycle keywords before adding other relevant journals as supplements.
重点期刊：按影响力和相关性排序Key journals: ordered by impact and relevance
1. SYSU TWSA v1.0: global high-resolution terrestrial water storage anomalies via satellite gravimetry
作者Authors: Yuhao Xiong; Wei Feng; Jun Huang; Hongbing Bai; Guangyu Jian; Min Zhong
发表月份Publication month: 2026-07 2026-07
Earth System Science Data · DOI: 10.5194/essd-18-4537-2026
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：来自卫星重力测量的公开全球高分辨率陆地水储存异常（TWSA）数据集仍然很少。许多现有的全球降尺度产品严重依赖水文模型。因此，在重力恢复和气候实验 (GRACE) 及其后续任务 GRACE Follow-On (GFO) 观测到的关键质量变化在模型中表现不佳的地区，特别是与山地冰川和大型湖泊相关的地区，它们的性能可能会下降。这里我们提供SYSU TWSA，全球每月0。 跨越 2002 年 4 月至 2022 年 12 月的 5° TWSA 数据集，使用联合反演空间降尺度框架生成，该框架集成了来自 GRACE/GFO 的大规模约束、来自 WaterGAP 全球水文模型 (WGHM) 的高分辨率空间模式以及明确代表山地冰川和选定的大型或快速变化湖泊的其他 mascon 组。该数据集有助于缓解当前全球高分辨率产品的短缺，并明确加强了冰川和湖泊相关信号的表示。我们通过四个补充评估来评估中山大学TWSA：（1）与原始GRACE/GFO估计的流域一致性，（2）流域水平衡一致性检查，（3）针对原位地下水井观测的独立评估，以及（4）在光谱和空间域中与代表性缩小产品进行比较。 中山大学 TWSA 在流域尺度上与 GRACE/GFO 表现出总体良好的一致性，跨流域大小类别的决定系数 (R2) 超过 0. 85。在小流域中，与从流域水平衡方程得出的陆地水通量的一致性显着提高，1200 个流域的 NSE 相对于原始 GRACE/GFO 增加了 17. 1 %。与地下水井的一致性也有所改善，28 248 口井的相关性增加至 67. 7 %。与代表性的基于同化和深度学习缩小尺寸的产品的比较进一步表明，中山大学 TWSA 在增强冰川和湖泊相关信号的表示的同时，表现出了有竞争力的整体精度。中山大学TWSA数据集可在国家青藏高原数据中心公开获取（https://doi.org/10.11888/Terre.tpdc.303322，Xiong等人，2026）。
Abstract: Publicly available global high-resolution terrestrial water storage anomaly (TWSA) datasets derived from satellite gravimetry remain scarce. Many existing global downscaling products rely heavily on hydrological models. Consequently, their performance can degrade in regions where key mass variations observed by the Gravity Recovery and Climate Experiment (GRACE) and its successor mission GRACE Follow-On (GFO) are poorly represented in the models, notably those associated with mountain glaciers and large lakes. Here we provide SYSU TWSA, a global monthly 0.5° TWSA dataset spanning April 2002 to December 2022, generated using a joint-inversion spatial downscaling framework that integrates large-scale constraints from GRACE/GFO, high-resolution spatial patterns from the WaterGAP Global Hydrological Model (WGHM), and additional mascon groups that explicitly represent mountain glaciers and selected large or rapidly changing lakes. The dataset helps alleviate the current shortage of global high-resolution products and explicitly strengthens the representation of glacier- and lake-related signals. We assess SYSU TWSA through four complementary evaluations: (1) basin-wise consistency with raw GRACE/GFO estimates, (2) a basin water-balance consistency check, (3) an independent evaluation against in situ groundwater well observations, and (4) comparisons with representative downscaled products in both the spectral and spatial domains. SYSU TWSA shows generally good agreement with GRACE/GFO at the basin scale, with coefficients of determination (R2) exceeding 0.85 across basin-size classes. In small basins, consistency with terrestrial water fluxes derived from the basin water-balance equation improves substantially, with NSE increasing by 17.1 % relative to raw GRACE/GFO across 1200 basins. Agreement with groundwater wells also improves, with correlations increasing at 67.7 % of 28 248 wells. Comparisons with representative assimilation-based and deep-learning downscaled products further indicate that SYSU TWSA demonstrates competitive overall accuracy while strengthening the representation of glacier- and lake-related signals. The SYSU TWSA dataset is openly available at the National Tibetan Plateau Data Center (https://doi.org/10.11888/Terre.tpdc.303322, Xiong et al., 2026).
重点关注团队Focused team
2. Responses of Water and Carbon Variables to Fire, Tropical Cyclone and Drought Across Southern Guangxi, China
作者Authors: Yi Liu; Shihong Mao; Guanghui Jiang; Yue Li
发表月份Publication month: 2026-07 2026-07
Ecohydrology · DOI: 10.1002/eco.70247
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：不同地区的水碳循环和生态系统恢复力受到各种干扰的影响不同。然而，在区域范围内，人们对这些周期如何应对干扰以及影响这些反应的主要变量仍然知之甚少。在中国广西南部沿海热带地区，我们评估了火灾、热带气旋 (TC) 和干旱对蒸散量 (ET)、初级生产总值 (GPP)、叶面积指数 (LAI) 和水分利用效率 (WUE) 的影响。我们使用随机森林和卫星衍生的 ET、GPP 和 LAI 产品量化了每种干扰的抵抗力、恢复时间和主要环境控制。不同干扰类型的抵抗力和恢复能力各不相同，干旱的影响最短，火灾的影响最长（69.ET 在 3 至 4 年内恢复）。 77% 的烧毁面积），与农田相比，森林对干旱和热带气旋具有更高的耐受性，但对火灾的抵抗力却最低。重要的是，分析显示生态系统控制发生了转变：TC 和干旱之后，ET、LAI 和 WUE 大部分变得受能源限制，而 GPP 在所有干扰中仍然受水限制。干旱期间 WUE 的主导控制存在地理差异，VPD 控制森林和稀树草原，降水控制草地和农田，进一步证明了这种特定于干扰的约束重新配置。我们对这个热带沿海地区的研究结果表明，干扰的类型，而不仅仅是当前的气候，决定了生态系统的主要限制。这些发现为预测极端气候地区的扰动后轨迹提供了见解。
Abstract: The water‐carbon cycles and ecosystem resilience across regions are impacted differently by various disturbances. However, how these cycles respond to disturbances, as well as the major variables influencing these responses, remain poorly understood at regional scales. In a coastal tropical region of southern Guangxi, China, we evaluated the effects of fire, tropical cyclone (TC) and drought on evapotranspiration (ET), gross primary production (GPP), leaf area index (LAI) and water use efficiency (WUE). We quantified resistance, recovery time and dominant environmental controls for each disturbance using random forest and satellite‐derived ET, GPP and LAI products. Resistance and recovery varied among disturbance types, with drought having the shortest impact and fire having the longest (ET recovered within 3 to 4 years in 69.77% of the burned area), and with forests exhibiting higher tolerance to drought and TC but the lowest resistance to fire when compared with croplands. Importantly, the analysis showed a shift in ecosystem controls: following TC and drought, ET, LAI and WUE became mostly energy‐limited, whereas GPP remained water‐limited throughout all disturbances. A geographical disparity in the dominant control of WUE during drought, with VPD controlling forests and savannas and precipitation controlling grasslands and croplands, further demonstrated this disturbance‐specific reconfiguration of constraints. Our results from this tropical coastal region indicate that the type of disturbance, rather than just the current climate, determined the primary limitation on ecosystems. These findings provide insights for forecasting post‐disturbance trajectories in areas with climatic extremes.
3. A T-DINEOF model for multiple oceanic variables reconstruction
作者Authors: Bo Ping; Ruiting Yang; Yunshan Meng; Fenzhen Su; Cunjin Xue
发表月份Publication month: 2026-07 2026-07
Ocean Science · DOI: 10.5194/os-22-2101-2026
关键词Tags: phytoplankton phytoplankton
摘要：研究主要分析变化趋势、事件响应、驱动机制或方法表现，并把观测结果与生态和生物地球化学过程联系起来。 核心结果或实现为该主题提供了新的观测约束、方法基准或过程解释。
Abstract: Satellite-derived oceanic data are frequently affected by cloud cover, resulting in spatiotemporal gaps. The Multi-DINEOF method is widely used to reconstruct multiple oceanic variables. However, Multi-DINEOF essentially remains a matrix-based DINEOF approach and does not fully leverage the correlations among multiple variables. To address this limitation, this study proposes the T-DINEOF model, aiming to improve the accuracy of reconstructing multiple oceanic variables simultaneously. When applied to sea surface temperature (SST), sea surface chlorophyll a (SCHL), and sea surface wind (SSW) collectively, T-DINEOF reduces root mean square error (RMSE) by 12.9 %, mean absolute error (MAE) by 13.8 %, and mean absolute percentage error (MAPE) by 11.9 % compared to Multi-DINEOF. For each individual oceanic variable, T-DINEOF outperforms both Multi-DINEOF and the original DINEOF methods, reducing RMSE by 9.0 % and 14.7 %, MAE by 10.5 % and 14.6 %, and MAPE by 13.7 % and 13.4 % for SST; reducing RMSE by 9.3 % and 11.8 %, MAE by 9.9 % and 13.4 %, and MAPE by 8.3 % and 11.8 % for SCHL; and reducing RMSE by 16.6 % and 3.7 %, MAE by 16.8 % and 3.5 %, and MAPE by 16.4 % and 3.1 % for SSW. Additionally, T-DINEOF proves effective in regions with a high proportion of missing data and in cases of low data correlation.
4. Periodic particulate organic carbon supply likely supports growth-ring formation in cold-water bamboo corals
作者Authors: Haozhuang Wang; Xiaoli Zhou; Haowen Dang; Xingxing Wang; Yanwei Zhang; Dierk Hebbeln; Les Watling; Zhimin Jian
发表月份Publication month: 2026-07 2026-07
Marine Ecology Progress Series · DOI: 10.3354/meps15235
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：Crossref 未提供该 DOI 的摘要。
Abstract: Crossref did not provide an abstract for this DOI.
其他相关期刊：按主题相关性补充Other relevant journals: topical supplements
5. Drivers of Coastal Water Quality and Ecological Status in the Bothnian Sea: Phosphorus Dynamics Across Scales
作者Authors: Harri Helminen
发表月份Publication month: 2026-07 2026-07
Journal of Marine Science and Engineering · DOI: 10.3390/jmse14131234
关键词Tags: phytoplankton phytoplankton
摘要：波的尼亚海沿岸水质是由当地养分输入、内部养分循环和流域范围内的磷富集之间的相互作用决定的，这使得富营养化的评估和管理变得更加复杂。本研究分析了新考蓬基和劳马附近芬兰沿海系统的营养物（总磷 (TP)、溶解性无机磷 (DIP)、溶解性无机氮 (DIN) 和总氮 (TN)）和浮游植物指标（叶绿素 A 和生物量）的长期时间序列。尽管劳马的外部磷负荷较高，但养分浓度和浮游植物生物量仍然低于半封闭的新考蓬基沿海地区。相比之下，Uusikaupunki 表现出较高的叶绿素 a 浓度和较低的 TP:Chl a 比率，表明磷的生物利用度较高。 在近海站SR5，表层以下TP和DIP增加，而表层浓度没有表现出明显的趋势，表明磷在更深的水域中积累。 DIN:DIP 比率下降表明向氮限制的转变，在这种情况下初级生产越来越依赖于磷支持的固氮。包括外群岛在内的整个沿海梯度的叶绿素 a 增加，表明富营养化的空间扩张。总之，这些发现与系统层面向磷驱动生产的转变是一致的。结果证明了一个双重控制系统，其中流域规模的磷富集决定了长期背景条件，而局部养分负荷和遗留效应调节了生态系统响应的空间变异性。 更广泛地说，研究结果强调了区域养分富集和当地生态系统过程之间跨尺度相互作用对于理解和管理内陆和半封闭海洋系统富营养化的重要性。
Abstract: Coastal water quality in the Bothnian Sea is shaped by interactions among local nutrient inputs, internal nutrient cycling, and basin-scale phosphorus enrichment, complicating the assessment and management of eutrophication. This study analyses long-term time series of nutrients (total phosphorus (TP), dissolved inorganic phosphorus (DIP), dissolved inorganic nitrogen (DIN), and total nitrogen (TN)) and phytoplankton indicators (chlorophyll a and biomass) from contrasting Finnish coastal systems off Uusikaupunki and Rauma. Despite higher external phosphorus loading in Rauma, nutrient concentrations and phytoplankton biomass remain lower than in the semi-enclosed Uusikaupunki coastal zone. In contrast, Uusikaupunki exhibits higher chlorophyll a concentrations and lower TP:Chl a ratios, suggesting greater phosphorus bioavailability. At the offshore station SR5, TP and DIP increase below the surface layer, while surface concentrations show no significant trends, indicating phosphorus accumulation in deeper waters. Declining DIN:DIP ratios indicate a shift toward nitrogen limitation, under which primary production increasingly depends on phosphorus-supported nitrogen fixation. Chlorophyll a increases across the coastal gradient, including the outer archipelago, indicating a spatial expansion of eutrophication. Together, these findings are consistent with a system-level shift toward phosphorus-driven production. The results demonstrate a dual-control system in which basin-scale phosphorus enrichment determines long-term background conditions, while local nutrient loading and legacy effects regulate spatial variability in ecosystem response. More broadly, the findings highlight the importance of cross-scale interactions between regional nutrient enrichment and local ecosystem processes for understanding and managing eutrophication in inland and semi-enclosed marine systems.
6. Subcellular visualization and quantification of cyanotoxin synthesis in cyanobacteria reveals distinct compartmentation
作者Authors: Rubén Morón-Asensio; Rainer Kurmayer
发表月份Publication month: 2026-04 2026-04
Scientific Reports · DOI: 10.1038/s41598-026-47303-1
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：形成水华的蓝藻微囊藻和浮丝菌通过非核糖体肽合成（NRPS）产生蓝藻毒素，例如微囊藻毒素（MC）和鱼腥肽（AP）。仔细检查其合成有助于了解此类蓝藻毒素的生物学功能。使用化学选择性标记对 MC 和 AP 进行可视化，并且在延时信号建立和下降实验中观察到荧光信号的异质分布。使用先进的成像分析对相当不同的实体的形成进行量化，定义具有不同强度但相当稳定的体积、数量和定位的模型实体（ME）。 MC的合成来源主要在单细胞微囊藻的细胞质中，并通过免疫标记得到证实。 相反，对于丝状浮丝菌中的 AP，其起源位于丝状细胞之间隔膜附近的膜区域。我们的数据表明细胞中存在不同的蓝藻毒素生物合成中心，单细胞和多细胞蓝细菌之间的定位不同。
Abstract: The bloom-forming cyanobacteria Microcystis and Planktothrix produce cyanotoxins such as microcystins (MCs) and anabaenopeptins (APs) through nonribosomal peptide synthesis (NRPS). Close inspection of their synthesis can aid in understanding the biological function of such cyanotoxins. MCs and APs were visualized using chemoselective labeling, and a heterogeneous distribution of fluorescence signals was observed during both time-lapse signal build-up and decline experiments. The formation of rather distinct entities was quantified using advanced imaging analysis, defining modeled entities (ME) with varying intensities but rather stable volumes, numbers and localization. The origin of MC synthesis was mostly in the cytoplasm of unicellular Microcystis and was confirmed through immunolabeling. In contrast, for APs in filamentous Planktothrix , the origin was localized in the membrane region near the septa between filament cells. Our data suggest distinct cyanotoxin biosynthesis centers in cells, differing in their localization between unicellular and multicellular cyanobacteria.
7. Nutrient‐Driven Expansion of Reef Fish Habitat Suitability in Indonesian Waters: A 24‐Year Analysis Reveals Iron and Phosphate as Dominant Drivers
作者Authors: Muhammad Arif Nasution; Rika Astuti; Rudi Hermi; Fazril Saputra
发表月份Publication month: 2026-07 2026-07
Marine Ecology · DOI: 10.1111/maec.70109
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：了解与珊瑚礁相关鱼类栖息地适宜性相关的环境因素对于热带群岛系统的保护规划非常重要，因为温度、营养动态、生产力和水质在空间和时间上相互作用。本研究考察了 2000 年至 2023 年印度尼西亚水域珊瑚礁相关鱼类的预测栖息地适宜性的时间变化。使用 MaxEnt 和目标群体背景选择对出现记录进行空间细化和建模，以减少抽样偏差。通过比较正则化乘数值进行模型校准，最终模型选择RM=2。使用代表热条件、营养物、生产力、盐度、溶解氧和悬浮颗粒物的卫星海洋学预测因子对四个六年周期进行了分析。 模型性能始终良好，平均测试 AUC 值范围为 0. 841 至 0. 900。营养相关变量和水质变量是相对栖息地适宜性最有影响力的预测因子。悬浮颗粒物是 T1 中最强的贡献者，而溶解铁在 T2-T4 期间占主导地位，其次是磷酸盐。温度变量的贡献小于与营养相关的预测因子，这表明印度尼西亚水域中与珊瑚礁相关的鱼类适宜性与区域生物地球化学和水质梯度密切相关。预测的适宜区域呈现非线性时间模式，从 T1 到 T2 下降，然后在 T3 和 T4 增加。然而，这些模式应被解释为相对环境适宜性的变化，而不是人口恢复或生态系统恢复力的直接证据。 这些发现强调了在使用大规模栖息地适宜性模型为印度尼西亚水域的珊瑚礁鱼类保护提供信息时，整合水质管理、流域控制、珊瑚礁监测和现场验证的重要性。
Abstract: Understanding the environmental factors associated with reef‐associated fish habitat suitability is important for conservation planning in tropical archipelagic systems, where temperature, nutrient dynamics, productivity, and water quality interact across space and time. This study examined temporal changes in predicted habitat suitability for reef‐associated fish across Indonesian waters from 2000 to 2023. Occurrence records were spatially thinned and modeled using MaxEnt with target‐group background selection to reduce sampling bias. Model calibration was performed by comparing regularization multiplier values, and RM = 2 was selected for the final models. Four six‐year periods were analyzed using satellite‐derived oceanographic predictors representing thermal conditions, nutrients, productivity, salinity, dissolved oxygen, and suspended particulate matter. Model performance was consistently good, with mean test AUC values ranging from 0.841 to 0.900. Nutrient‐related and water‐quality variables were the most influential predictors of relative habitat suitability. Suspended particulate matter was the strongest contributor in T1, whereas dissolved iron dominated during T2–T4, followed by phosphate. Temperature variables contributed less than nutrient‐related predictors, suggesting that reef‐associated fish suitability in Indonesian waters is strongly associated with regional biogeochemical and water‐quality gradients. Predicted suitable area showed a non‐linear temporal pattern, declining from T1 to T2 before increasing in T3 and T4. However, these patterns should be interpreted as changes in relative environmental suitability, not direct evidence of population recovery or ecosystem resilience. These findings highlight the importance of integrating water‐quality management, watershed control, reef monitoring, and field validation when using broad‐scale habitat suitability models to inform reef fish conservation in Indonesian waters.
