1. Lagrangian perspective on the response of typical chlorophyll structures to mesoscale eddies
关键词Tags: phytoplankton phytoplankton
摘要：Crossref 未提供该 DOI 的摘要。
Abstract: Crossref did not provide an abstract for this DOI.
Paper Push: 2026-06-24
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
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
Ogne viltà convien che qui sia morta.
这句紧接上一句，意思是“所有怯懦都必须在这里死去”。它强调临界时刻的勇气。
This follows the call to abandon doubt: every cowardice must die here. It sharpens the threshold into a demand for courage.
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
2. Six Decades (1965–2025) of Phytoplankton Absorption Research: A Bibliometric and Systematic Review with Insights from the Past Decade
关键词Tags: phytoplankton; ocean colour; ocean optics; absorption; bio-optics phytoplankton; ocean colour; ocean optics; absorption; bio-optics
摘要：浮游植物是水生生态系统中的初级生产者，其色素、细胞大小和生理状态影响它们吸收光和固定碳的方式。可见光谱中的浮游植物吸收系数 (ɑph(λ)) 是决定海洋环境中浮游植物与光相互作用的基本细胞光学特性。这一特性将生物过程与海洋颜色遥感反射率 (Rrs) 联系起来，从而能够使用海洋颜色卫星评估海洋中的环境和生物地球化学条件。本研究对 ɑph(λ) 研究的 6 个十年（1965 年至 2025 年）进行了多阶段系统回顾，重点综合了过去十年的进展。文献计量分析实证检验了该领域的研究发展及其六十年来的主题趋同与方法论分歧。 聚类分析用于汇编有影响力的研究主题以及新兴趋势，以确定系统评价的范围和设计。对过去十年（2015-2025）的研究进行了重点系统回顾，以确定概念和理论进展、主要观测和算法改进以及持续的挑战。数据分析强调了各种研究所达到的准确性、算法应用的复杂性以及以产品为中心的开发。所确定的持续挑战包括解决光学简并性、垂直结构采集和操作使用的缩放方法。本综述总结了 ɑph(λ) 作为下一代海洋颜色科学、生物地球化学建模和气候相关生态系统监测的关键参数的中心地位。
Abstract: Phytoplankton are primary producers in the aquatic ecosystems whose pigments, cell size, and physiological state affect how they absorb light and fix carbon. The phytoplankton absorption coefficient (ɑph(λ)) in the visible spectrum is a fundamental cellular optical property that determines phytoplankton–light interactions in the marine environment. This property links biological processes to ocean color remote sensing reflectance (Rrs), enabling an assessment of environmental and biogeochemical conditions in the ocean using ocean color satellites. This study presents a multi-stage systematic review of six decades (1965–2025) of ɑph(λ) research, with a focused synthesis of developments in the past decade. A bibliometric analysis empirically examines the research growth of the field and its thematic convergence into methodological divergence across six decades. Cluster analysis was used to compile influential research topics as well as emerging trends, to determine the scope and design of the systematic review. A focused systematic review of studies in the past decade (2015–2025) has been carried out to identify conceptual and theoretical advances, major observational and algorithmic improvements, and ongoing challenges. The data analyses highlight the accuracy achieved by various studies, the complexity of applications of algorithms, and product-focused developments. The ongoing challenges identified include resolving optical degeneracy, vertical structure acquisition, and scaling methods for operational use. This review concludes the centrality of ɑph(λ) as a key parameter to next-generation ocean color science, biogeochemical modeling, and climate-related ecosystem monitoring.
重点关注团队Focused team
3. Modified Atmosphere Packaging Delays Senescence and Chlorophyll Degradation by Enhancing Antioxidant Capacity in Postharvest Broccoli
关键词Tags: phytoplankton phytoplankton
摘要：新鲜西兰花极易腐烂，迅速变黄，品质变差，保质期短。在本研究中，我们研究了不同厚度的纳米材料气调包装 (MAP) 袋（指定为 2. 5C (25 μm) 和 4C (40 μm)）对西兰花生理生化变化的影响，并在 20 ± 1 °C 储存 8 天期间进行了评估。结果表明，两种 MAP 处理均通过抑制从绿色到黄色的快速颜色转变（L*、a*、b* 和色调角值的变化）以及抑制叶绿素降解来显着延迟小花衰老。 2. 5C处理在储存期间表现出更明显的效果。 MAP 处理通过保留总酚和维生素 C (Vc) 含量、保持茎硬度和表面光泽度、调节开瓶后呼吸速率和减少水分流失来帮助保持商业质量。 MAP处理还有效抑制了超氧阴离子(O2•−)和过氧化氢(H2O2)的积累。此外，如 DPPH 和 ABTS 测定以及西兰花中的 O2•− 清除率所证明的那样，MAP 处理增强了自由基清除能力。这些结果表明，适当厚度（例如2. 5C）的MAP处理可以有效抑制ROS的过量产生并增强抗氧化能力，从而延缓小花叶绿素降解和衰老。这项研究为利用物理 MAP 处理新鲜西兰花制定有效的绿色保鲜策略奠定了基础。
Abstract: Fresh broccoli is highly perishable, exhibiting rapid yellowing and quality deterioration with a short shelf life. In this study, we investigated the effects of nanomaterial-modified atmosphere packaging (MAP) bags with different thicknesses, designated as 2.5C (25 μm) and 4C (40 μm), on the physiological and biochemical changes in broccoli were evaluated during storage at 20 ± 1 °C for 8 days. Results showed that both MAP treatments remarkably delayed floret senescence by inhibiting the rapid color transition from green to yellow, as indicated by alterations in L*, a*, b*, and hue angle values, as well as by suppressing chlorophyll degradation. The 2.5C treatment exhibited a more pronounced effect during storage. MAP treatments helped maintain commercial quality by preserving total phenols and vitamin C (Vc) content, retaining stem firmness and surface glossiness, regulating post-opening respiration rate and reducing water loss. MAP treatments also effectively suppressed the accumulation of superoxide anion (O2•−) and hydrogen peroxide (H2O2). Furthermore, MAP treatments enhanced free radical scavenging capacity, as demonstrated by DPPH and ABTS assays and the O2•− scavenging rate in broccoli. These results indicate that MAP treatment with an appropriate thickness (e.g., 2.5C) effectively inhibits excessive ROS production and enhances antioxidant capacity, thereby delaying floret chlorophyll degradation and senescence. This study provides a foundation for developing effective and green preservation strategies using physical MAP treatments for fresh broccoli.
4. Typhoon-Induced Asymmetric Responses of Mesoscale Eddies in the South China Sea
关键词Tags: ocean biogeochemistry ocean biogeochemistry
摘要：近年来，南海台风活动加剧，台风与中尺度涡相互作用深刻调控区域海洋环境和海气能量交换。为了系统地研究台风强迫的位置和极性相关的涡响应，我们开发了台风-涡空间匹配算法，并结合中国气象局（CMA）最佳路径台风记录分析了全球中尺度涡数据集（2006-2020）。采用综合和相关分析研究台风通过前后7天窗口内涡流表面可用势能（SAPE）和海面温度（SST）的变化，并使用台风功率耗散指数（PDI）来量化风暴强度。 综合结果揭示了明显的双不对称响应：（1）能量上，台风路径左侧涡流整体减弱，其中反气旋涡流（ACE）表现出更明显的能量衰减；相反，右侧涡流明显增强，并且气旋涡流（CE）比 ACE 表现出更强的增强。 (2) 从热学角度来看，所有涡流类型在台风通过后都会经历净冷却，右侧涡流比左侧涡流表现出更强的海温降低，CE 比 ACE 表现出更强的冷却。时间尺度相关性分析进一步表明，左侧CE、右侧CE和右侧ACE的涡能量变化率（EECR）与PDI呈正相关，而左侧ACE则不存在显着相关性。 对于海温变化率（SSTCR），所有类型的涡旋事件都与PDI表现出显着的负相关性，其中CE的相关性较弱，ACE的相关性较强。这项研究表明，热带气旋的路径相对位置和预先存在的中尺度涡旋的极性对观测到的南海热带气旋强迫的涡旋响应具有系统的控制作用。这些结果提供了对热带气旋引起的不对称海洋响应的观测限制，并为边缘海台风与海洋相互作用诊断的解释提供了见解。
Abstract: In recent years, typhoon activity over the South China Sea (SCS) has intensified, and interactions between typhoons and mesoscale eddies profoundly regulate the regional oceanic environment and air–sea energy exchange. To systematically investigate the position- and polarity-dependent eddy responses to typhoon forcing, we developed a typhoon–eddy spatial matching algorithm and analyzed the global mesoscale eddy dataset (2006–2020) combined with China Meteorological Administration (CMA) best-track typhoon records. Composite and correlation analyses were employed to examine variations in the eddy surface available potential energy (SAPE) and sea-surface temperature (SST) within a 7-day window before and after typhoon passage, with the typhoon power dissipation index (PDI) used to quantify storm intensity. Composite results reveal distinct dual-asymmetric responses: (1) Energetically, eddies on the left side of typhoon tracks exhibit overall weakening, with anticyclonic eddies (ACEs) showing more pronounced energy decay; in contrast, right-side eddies undergo significant intensification, and cyclonic eddies (CEs) display stronger enhancement than ACEs. (2) Thermally, all eddy types experience net cooling after typhoon passage, with right-side eddies showing stronger SST reductions than left-side ones, and CEs exhibiting more intense cooling than ACEs. Time-scale correlation analyses further demonstrate that the eddy energy change rate (EECR) of left-side CEs, right-side CEs, and right-side ACEs is positively correlated with PDI, whereas left-side ACEs show no significant correlation. For the SST change rate (SSTCR), all types of eddy events exhibit significant negative correlations with PDI, with weaker correlations for CEs and stronger correlations for ACEs. This study demonstrates that the track-relative position of tropical cyclones and the polarity of pre-existing mesoscale eddies exert a systematic control on the observed eddy responses to tropical cyclone forcing in the SCS. These results provide observational constraints on the asymmetric oceanic responses induced by tropical cyclones and offer insights into the interpretation of typhoon–ocean interaction diagnostics in marginal seas.
其他相关期刊：按主题相关性补充Other relevant journals: topical supplements
5. Marine heatwaves shape size‐dependent thermal exposure, habitat use and marine residency in Arctic char ( Salvelinus alpinus )
关键词Tags: marine heatwaves marine heatwaves
摘要：高纬度海洋中的海洋热浪（MHW）正在增加，但溯河产卵鱼类在短暂的海洋觅食季节对这些潜在压力源的行为反应仍知之甚少。我们将声学遥测（内部温度和深度）与卫星获取的海面温度数据相结合，量化了两个截然不同的夏季中北极红点鲑（Salvelinus alpinus）对拉布拉多海沿岸的 MHW 的响应：2023 年，早季 MHW 频繁出现；2024 年，以晚季事件为主。使用非 MHW 检测，我们拟合每条鱼的季节性基线并计算温度和深度异常。炭火往往发生在内部栖息地（河口/峡湾），尽管 2024 年在外部（沿海/岬角）栖息地的利用方面显示出更大的个体差异。 MHW 发作期间内部温度相对于基线有所增加（中位数 +0. 64°C），发病后有适度的持续性（+0. 23°C），而深度异常没有表现出一致的偏离。从MHW之前到MHW期间，不同体型的温度异常有所增加，并且在发作期间对于较大的鱼类来说最为强烈。相比之下，在控制季节性后，MHW 条件增加了主要针对较小鱼类的内部栖息地检测的可能性。不同年份的迁徙时间因体型大小而异，较大的鱼类在 2023 年早些时候离开海洋环境并进入河流。总体而言，北极红点鲑的反应并没有提供证据表明它们在 MHW 期间寻找热避难所。然而，栖息地利用和迁移时间的大小依赖性变化表明，MHW 仍然可以改变海洋栖息地的权衡，可能是通过间接生态因素（例如猎物可用性）。 然而，当未来的热浪超过生理或生长性能阈值时，北极红点的反应可能会加剧。
Abstract: Marine heatwaves (MHWs) are increasing in high‐latitude oceans, yet behavioural responses of anadromous fishes to these potential stressors during short marine feeding seasons remain poorly understood. We combined acoustic telemetry (internal temperature and depth) with satellite‐derived sea surface temperature data to quantify Arctic char ( Salvelinus alpinus ) responses to MHWs in the coastal Labrador Sea across two contrasting summers: 2023, with frequent early‐season MHWs, and 2024, dominated by a late‐season event. Using non‐MHW detections, we fit seasonal baselines for each fish and calculated temperature and depth anomalies. Char tended to occur in inner habitats (estuaries/fjords), though 2024 showed greater among‐individual variability in outer (coastal/headland) habitat use. Internal temperatures increased relative to baseline during MHW onset (median +0.64°C) with modest persistence post‐onset (+0.23°C), whereas depth anomalies showed no consistent departures. Temperature anomalies increased from pre to during MHWs across body sizes and were strongest for larger fish during onset. In contrast, MHW conditions increased the probability of inner‐habitat detection primarily for smaller fish after controlling for seasonality. Migration timing differed between years in a size‐dependent way, with larger fish leaving the marine environment and entering rivers earlier in 2023. Overall, Arctic char responses did not provide evidence that they sought out thermal refuges during MHWs. However, size‐dependent shifts in habitat use and migration timing indicate that MHWs can still alter marine habitat trade‐offs, likely through indirect ecological factors (e.g., prey availability). Arctic char responses may intensify, however, when future heatwaves exceed physiological or growth‐performance thresholds.
6. Epibenthic Invertebrate Diversity on Sublittoral Rocky Habitats in Marine Protected Areas of the North Aegean Sea After a Severe Heatwave Event
关键词Tags: marine heatwaves; vertical structure marine heatwaves; vertical structure
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。 核心结果帮助说明海洋热浪如何通过强度、持续时间或垂向结构影响生态和碳循环过程。
Abstract: Marine invertebrates, such as sponges, corals, mollusks and sea squirts, are appropriate climate-change descriptors on sublittoral rocks. The present study assesses the diversity, relative abundance and health condition of epibenthic invertebrates inhabiting sublittoral rocky habitats within the Natura 2000 network (Chalkidiki, north Aegean), after the 2021 marine heatwaves. Samplings were made with non-destructive techniques in autumn 2021 by diving along vertical belt transects (up to 30 m). Fourteen stations were surveyed, revealing 56 macroscopic invertebrates, 16 algae and 15 reef-associated fishes. Richness showed increased values at the deepest and steepest cliffs. Reefs were the dominant habitat type, hosting different facies of infralittoral algae and coralligenous biocenoses. Three algal (Halimeda tuna, Peyssonelia squamaria, Lithophyllum strictiforme) and 12 invertebrate (Aplysina aerophoba, Chondrilla nucula, Chondrosia reniformis, Ircinia variabilis, I. oros, Sarcotragus foetidus, Spongia officinalis, Balanophyllia europaea, Cladocora caespitosa, Pinna nobilis, Spondylus gaederopus, Microcosmus sabatieri) species were found in partial or full necrosis. According to relevant data collected about 20 years ago, the biota had higher diversity without signs of necrosis. Sarcotragus foetidus, I. variabilis, B. europaea, C. caespitosa and S. gaederopus were the most affected by necrosis species over the surveyed area. They represent appropriate climate change descriptors to assess the resilience of Mediterranean MPAs, being priority species in marine conservation.
7. Automated Debris Imaging System: Calibrated global monitoring of floating marine litter using ship-based cameras and deep learning
关键词Tags: bio-optics bio-optics
摘要：需要持续的全球观测技术来全面了解水生环境中塑料污染的质量平衡和时间趋势。近年来，实现漂浮海洋垃圾大规模自动化监测的努力不断加快。例如，借助多光谱、高光谱、热红外、偏振测量、合成孔径雷达等方法的研究，沿海地区漂浮海洋垃圾的卫星测绘已取得实质性进展。事实证明，基于卫星的方法对于公海来说具有挑战性，因为那里漂浮的海洋碎片过于分散。具体而言，大型漂浮大塑料（> 50 厘米）构成海洋塑料质量预算的重要组成部分，但即使通过表面拖网和目视观察等经典方法也很难量化。 在这里，我们展示了最近推出的自动碎片成像系统（ADIS）的进一步改进和首次全球活动。该技术采用光学图像和深度学习来检测和分类沿着血管横断面的漂浮大塑料。对于每次检测，都会创建一个地理标记的片段，以便进行人工验证和过滤误报。自最初的概念验证以来，我们已经编制了一个全球数据集，其中包含超过 2700 万张或 165TB 的照片，横跨五个大洋，面积达 14,485 km 2 。我们总共发现了 20,000 多个漂浮的大型塑料项目。至关重要的是，这项研究包括使用并发表面网拖网样本验证 ADIS 方法，从而能够评估检测的准确性和精度。 这些发现代表了开发可扩展、高分辨率的公海海洋塑料污染监测工具的重要一步。
Abstract: Continuous and global observation techniques are required for a comprehensive understanding of the mass balance and the temporal trends of plastic pollution in the aquatic environment. Efforts to achieve large-scale automated monitoring of floating marine debris have accelerated in recent years. For example, satellite-based mapping of floating marine debris in coastal regions has made substantial progress, aided by studies on the use of multispectral, hyperspectral, thermal infrared, polarimetry, synthetic aperture radar, and other methods. Satellite-based methods have proven challenging for the open ocean, where floating marine debris is too dispersed. Specifically, large floating macroplastics (>50 cm) constitute a significant part of the ocean plastic mass budget, but are poorly quantifiable even by classical methods, such as surface trawls and visual observations. Here, we demonstrate further refinements and a first-ever global campaign of the recently introduced Automated Debris Imaging System (ADIS). This technology employs optical imagery and deep learning to detect and classify floating macroplastics along vessel transects. For every detection, a geo-tagged snippet is created, allowing for human validation and filtering of false positives. Since the initial proof-ofconcept, we have compiled a global dataset, comprising over 27 million or 165TB of photographs, spanning 14,485 km 2 over five oceans. In total, we identified more than 20,000 floating macroplastic items. Crucially, this study includes validation of the ADIS approach using concurrent surface nettrawl samples, enabling an assessment of detection accuracy and precision. These findings represent a major step forward in the development of scalable, high-resolution monitoring tools for marine plastic pollution in the open ocean.