Limnology and Oceanography Letters最新文献_第4页

How localized physical processes influence large-scale phytoplankton blooms near the sea ice edge in the Greenland Sea 局部物理过程如何影响格陵兰海海冰边缘附近的大规模浮游植物繁殖

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-30 DOI: 10.1002/lol2.70162

Abigail P. Heiser, Till J. W. Wagner, Manfredi Manizza, Dustin Carroll, Conner W. Lester, Dimitris Menemenlis

{"title":"How localized physical processes influence large-scale phytoplankton blooms near the sea ice edge in the Greenland Sea","authors":"Abigail P. Heiser, Till J. W. Wagner, Manfredi Manizza, Dustin Carroll, Conner W. Lester, Dimitris Menemenlis","doi":"10.1002/lol2.70162","DOIUrl":"https://doi.org/10.1002/lol2.70162","url":null,"abstract":"The Arctic Ocean has experienced intensifying phytoplankton spring blooms near the sea ice edge. Here, we investigate the drivers of such near-ice blooms in the Greenland Sea by comparing satellite and in situ observations with the ECCO-Darwin physical–biogeochemical state estimate. Satellite data reveal pronounced spring blooms within ~ 200 km of the ice, a signal that is not reproduced in ECCO-Darwin. Observations further reveal that primary production is tightly linked to submesoscale meltwater eddies shed from the ice edge, which are not currently resolved by ECCO-Darwin. We argue that the relatively coarse spatial resolution, together with biases in sea ice concentration and sea surface salinity lead to the underestimation of near-ice blooms in ECCO-Darwin. These results highlight (1) a critical role for fine-scale processes in driving Arctic Ocean primary production and (2) the need for improved freshwater forcing, stratification, and small-scale circulation in Arctic Ocean state estimates.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 5","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From temporal variability to integrated metabolic balance: Interpreting total alkalinity and dissolved inorganic carbon relationships in dynamic coral reef ecosystems 从时间变异到综合代谢平衡：解释动态珊瑚礁生态系统中总碱度和溶解无机碳的关系

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-30 DOI: 10.1002/lol2.70155

Tyler Cyronak, Yuichiro Takeshita, Rebecca Albright, Ken Caldeira, Bradley Eyre, Alyssa Griffin, David A. Koweek, Jennifer Mallon, Manoela Romano de Orte, Kai G. Schulz, Kennedy Wolfe

{"title":"From temporal variability to integrated metabolic balance: Interpreting total alkalinity and dissolved inorganic carbon relationships in dynamic coral reef ecosystems","authors":"Tyler Cyronak, Yuichiro Takeshita, Rebecca Albright, Ken Caldeira, Bradley Eyre, Alyssa Griffin, David A. Koweek, Jennifer Mallon, Manoela Romano de Orte, Kai G. Schulz, Kennedy Wolfe","doi":"10.1002/lol2.70155","DOIUrl":"https://doi.org/10.1002/lol2.70155","url":null,"abstract":"Linear regressions between total alkalinity (TA) and dissolved inorganic carbon (DIC) are widely used to infer the balance between net ecosystem calcification (NEC) and net ecosystem production (NEP) in coral reefs. Using high-frequency carbonate chemistry observations from an Australian reef flat and simple numerical models, we show that TA–DIC slopes primarily reflect the temporal co-variability of NEC and NEP, rather than their time-integrated metabolic balance. To recover time-integrated metabolic information, diel reef measurements must be coupled with offshore reference conditions, which anchor changes in TA and DIC to NEC : NEP ratios. We further demonstrate that metabolic balance shifts systematically over the diel cycle and depends on light, indicating that it is inherently dynamic rather than static. Together, our results highlight the need to distinguish metabolic co-variability from metabolic ratios when interpreting carbonate chemistry data in coral reef and other dynamic aquatic ecosystems.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 5","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging occurrence of Gambierdiscus carolinianus in the Azores: The northernmost Atlantic record 亚速尔群岛新出现的卡罗莱纳甘比铁鱼：大西洋最北端的记录

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-27 DOI: 10.1002/lol2.70160

Miguel Barbosa, Catarina Churro, Inês Gomes, Sergei Danchenko, Maria Filomena Caeiro, Pedro Afonso, Ana Amorim, Pedro Reis Costa

{"title":"Emerging occurrence of Gambierdiscus carolinianus in the Azores: The northernmost Atlantic record","authors":"Miguel Barbosa, Catarina Churro, Inês Gomes, Sergei Danchenko, Maria Filomena Caeiro, Pedro Afonso, Ana Amorim, Pedro Reis Costa","doi":"10.1002/lol2.70160","DOIUrl":"https://doi.org/10.1002/lol2.70160","url":null,"abstract":"The dinoflagellate genus Gambierdiscus was detected for the first time in the Azores Archipelago, representing its northernmost record to date (> 39°N). Two strains were isolated from macroalgal substrates on Corvo and Faial Islands during the summer of 2024, coinciding with a marine heatwave in which sea-surface temperature anomalies exceeded +2°C. Morphological and molecular analyses identified both isolates as Gambierdiscus carolinianus, extending further North the known range of this genus in the Atlantic and complementing previous records from other Macaronesian archipelagos. The Azorean isolate from Corvo clustered more closely with western Atlantic populations than with Madeira or the Canary Islands strains, suggesting long-range connectivity potentially driven by oceanographic processes. Although no ciguatera poisoning (CP) cases have been reported in the Azores, the occurrence of Gambierdiscus highlights the need for sustained monitoring and ecological assessments to evaluate the risk of CP emergence in this remote temperate archipelago under shifting environmental conditions.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148616523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An updated view on the long-term survival and significance of marine protist resting stages 关于海洋原生生物休眠阶段的长期生存和意义的最新观点

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-21 DOI: 10.1002/lol2.70154

Sanne Mariël Moedt, Sofia Ribeiro

引用次数: 0

CoralSpec-30M: A large-scale coral spectral dataset covering multiple species, scales, and health conditions CoralSpec‐30M：一个大型珊瑚光谱数据集，涵盖多种物种、尺度和健康状况

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-20 DOI: 10.1002/lol2.70156

Kaizhang Kang, Wolfgang Heidrich

{"title":"CoralSpec-30M: A large-scale coral spectral dataset covering multiple species, scales, and health conditions","authors":"Kaizhang Kang, Wolfgang Heidrich","doi":"10.1002/lol2.70156","DOIUrl":"10.1002/lol2.70156","url":null,"abstract":"Coral reef monitoring techniques are in high demand to support conservation efforts in marine ecosystems. Noninvasively measuring the spectral reflectance of corals provides rich information about their health status. However, the lack of large-scale, high-quality coral spectral datasets prevents the application of data-driven spectral acquisition and analysis methods to coral reef monitoring. In this work, we present CoralSpec-30M, a high-resolution underwater coral spectral dataset acquired under controlled environments. The dataset contains 1286 hyperspectral images of 10 representative hard coral species, covering 1865 individual samples and 30,031,224 valid pixels. Each image is a 512 × 512 reflectance cube spanning 400 to 800 nm at 2.9 nm spectral intervals (136 bands). Coral samples are captured under paired white/blue illumination. The dataset also includes coral masks, manually labeled pixel-wise semantic annotations, and machine-learning–generated class masks. This dataset supports the development of data-driven approaches for coral reef monitoring and related coral research.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148498978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of environmental and life history traits in larval growth and settlement success of the blenny Ophioblennius trinitatis 环境和生活史性状对三叶蛇蛉幼虫生长和定居成功的影响

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-20 DOI: 10.1002/lol2.70159

Henrique Grande, Nayara Ferreira Carvalho, Mauro Maida, Beatrice Padovani Ferreira

{"title":"The role of environmental and life history traits in larval growth and settlement success of the blenny Ophioblennius trinitatis","authors":"Henrique Grande, Nayara Ferreira Carvalho, Mauro Maida, Beatrice Padovani Ferreira","doi":"10.1002/lol2.70159","DOIUrl":"10.1002/lol2.70159","url":null,"abstract":"Reef fish have complex life cycles where pelagic larval survival and recruitment are linked to environmental and early life history traits (ELHTs). We combine light traps and otolith microstructure analysis to examine how environmental variables and ELHTs drive larval growth and settlement in the endemic Ophioblennius trinitatis. Otoliths revealed a prolonged pelagic larval duration (47–52 d), large settlement size, and lunar-synchronized spawning and settlement. Larval growth responded to non-linear interactions between sea surface temperature and wind regime, peaking within a narrow thermal window (26.6–27.8°C) under weak east–southeasterly winds (< 5.8 m s−1) and chlorophyll a concentrations > 0.15 mg m−3. Pre-settlement abundance showed seasonal and interannual variability, largely driven by seasonal and year-to-year fluctuations, with environmental effects limited to thermo-hydrodynamic interactions favoring coastal retention. Results show settlement in O. trinitatis is structured by intrinsic life-history synchronization, with environmental variability modulating larval performance within narrow optimal windows, highlighting sensitivity to climate change.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148564858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tracing the origins of metalimnetic methane in a stratified large lake: Insights from high-resolution mapping and three-dimensional hydrodynamic modeling 在一个分层的大湖中追踪金属成因甲烷的起源：来自高分辨率制图和三维水动力模型的见解

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-07 DOI: 10.1002/lol2.70158

Santona Khatun, Roberto Grilli, Abolfazl Irani Rahaghi, Tomy Doda, Damien Bouffard, Carsten J. Schubert, Jérôme Chappellaz, Marie-Elodie Perga

{"title":"Tracing the origins of metalimnetic methane in a stratified large lake: Insights from high-resolution mapping and three-dimensional hydrodynamic modeling","authors":"Santona Khatun, Roberto Grilli, Abolfazl Irani Rahaghi, Tomy Doda, Damien Bouffard, Carsten J. Schubert, Jérôme Chappellaz, Marie-Elodie Perga","doi":"10.1002/lol2.70158","DOIUrl":"10.1002/lol2.70158","url":null,"abstract":"Methane (CH4) accumulation in the oxic metalimnion is a common yet poorly resolved feature of deep stratified lakes. In Lake Geneva, lateral transport from the Rhône delta has been suggested but lacks spatial validation. Here, we quantify the role of lateral advection in shaping metalimnetic CH4 using high-resolution in situ CH4 measurements, δ13C-CH4 analyses, and a three-dimensional Lagrangian particle-tracking model. Elevated metalimnetic CH4 (up to 1143 nM) near the Rhône delta becomes isotopically enriched, likely from prolonged residence and partial oxidation during summer stratification. While additional sources may contribute, comparisons of in situ measurements with particle-tracking simulations suggest circulation gyres may distribute deltaic CH4. Moreover, isotope- and transport-based indicators suggest more coherent coupling in the epilimnion than in the metalimnion. These results demonstrate that horizontal advection can be an important driver of metalimnetic CH4 and highlight the importance of circulation-driven lateral transport for assessing CH4 fluxes from large, stratified lakes.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148408821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lake trophic state modulates the sensitivity of harmful algal blooms to antecedent weather conditions 湖泊营养状态调节有害藻华对先前天气条件的敏感性

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-07-06 DOI: 10.1002/lol2.70144

Vincent W. Moriarty, Jonathan J. Borrelli, Michael R. Kelly, Guillaume A. R. Auger, Mark A. Lucius, Allison R. Hrycik, Mathew Kraft, Brian T. Duffy, Leanna Pierson, Stephanie G. June, Rebecca M. Gorney, Kevin C. Rose

{"title":"Lake trophic state modulates the sensitivity of harmful algal blooms to antecedent weather conditions","authors":"Vincent W. Moriarty, Jonathan J. Borrelli, Michael R. Kelly, Guillaume A. R. Auger, Mark A. Lucius, Allison R. Hrycik, Mathew Kraft, Brian T. Duffy, Leanna Pierson, Stephanie G. June, Rebecca M. Gorney, Kevin C. Rose","doi":"10.1002/lol2.70144","DOIUrl":"10.1002/lol2.70144","url":null,"abstract":"Cyanobacterial harmful algal blooms (cyanoHABs) are often associated with warm water temperatures and low wind speeds, but quantifying thresholds in meteorological conditions is challenging. Using 4208 cyanoHAB reports from 405 lakes in New York State (USA), we calculated anomalies in daily wind speed and air temperature for each report and the 5 d preceding it. On the day of a cyanoHAB, lakes had lower than average wind speeds and higher than average air temperatures. Notably, the magnitude of these anomalies was influenced by the trophic state of each lake, with nutrient-limited lakes having larger anomalies on the day of a cyanoHAB. Additionally, the absence of either anomaly type reduced the likelihood of a cyanoHAB, particularly in nutrient-poor lakes. These results enhance our understanding of the proximate drivers and thresholds regulating cyanoHABs across varying trophic states, suggesting that large-scale changes in climate may substantially impact future cyanoHAB development.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148408823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-driven diet shift in an invasive omnivorous crustacean feeding on plankton 以浮游生物为食的入侵杂食性甲壳类动物在温度驱动下的饮食转变

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-06-29 DOI: 10.1002/lol2.70153

Varsha Rani, Zsófia Horváth, Károly Pálffy, Péter Borza, Pavel Kratina, Csaba F. Vad

{"title":"Temperature-driven diet shift in an invasive omnivorous crustacean feeding on plankton","authors":"Varsha Rani, Zsófia Horváth, Károly Pálffy, Péter Borza, Pavel Kratina, Csaba F. Vad","doi":"10.1002/lol2.70153","DOIUrl":"10.1002/lol2.70153","url":null,"abstract":"Global warming alters the physiology of ectotherm consumers, potentially making their diets more herbivorous. However, the relevance and generality of these changes remain poorly understood in a multispecies context. To address this critical knowledge gap, we experimentally tested the temperature-dependent feeding preference of the invasive mysid Limnomysis benedeni on different combinations of autotrophic (phytoplankton) and heterotrophic (zooplankton) prey species varying in body size. Warming increased the ratio of autotrophic-to-heterotrophic prey consumption across all treatments, driven by reduced heterotrophic prey consumption and, where larger zooplankton (Brachionus calyciflorus and Daphnia magna) were present, an additional increase in phytoplankton ingestion. Total carbon ingestion did not increase consistently with warming, indicating diet reallocation instead of increased overall feeding intensity at higher temperatures. These findings suggest that warming can change the trophic role of invasive consumers, potentially modulating their effects on community dynamics, and provide a basis for future research in more realistic ecological settings.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70153","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148364957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diel dynamics of zooplankton fecal pellet flux revealed by integrated in situ imaging observations and modeling 通过综合原位成像观察和建模揭示浮游动物粪便颗粒通量的动态变化

IF 7.3 2区地球科学

Limnology and Oceanography Letters Pub Date : 2026-06-23 DOI: 10.1002/lol2.70148

Yixuan Song, Melissa Omand, Colleen A. Durkin, Margaret L. Estapa, Deborah K. Steinberg

{"title":"Diel dynamics of zooplankton fecal pellet flux revealed by integrated in situ imaging observations and modeling","authors":"Yixuan Song, Melissa Omand, Colleen A. Durkin, Margaret L. Estapa, Deborah K. Steinberg","doi":"10.1002/lol2.70148","DOIUrl":"https://doi.org/10.1002/lol2.70148","url":null,"abstract":"The contribution of sinking fecal pellets to the biological carbon pump depends on pellet properties, producer abundance, and the depth and timing of pellet production, which can be modulated by diel vertical migration. We examined diel variability in zooplankton fecal pellet flux in the subarctic Northeast Pacific using two image-based tools: the Underwater Vision Profiler (UVP5) and upward-facing cameras (GelCam) on a surface-tethered sediment trap array. We classified three morphologically distinct fecal pellet types across both platforms: long fecal pellets from crustaceans, tabular pellets from salps, and ellipsoid pellets from appendicularians. This enabled complementary estimates of pellet abundance, modeled carbon content, and flux. Daily composites revealed distinct diel patterns in three zooplankton groups and their associated pellet flux. A simple model linking vertical migration with pellet production, sinking, and attenuation reproduced the observed temporal variability. Together, these results highlight how diel behavior and physiology impact vertical carbon transport.","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 4","pages":""},"PeriodicalIF":7.3,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0