Journal of Plankton Research最新文献

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Beyond the bottle: exposing the identity-rate gap in microzooplankton ecology. 瓶子之外:揭露微型浮游动物生态学中的识别率差距。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-09-01 DOI: 10.1093/plankt/fbag070
Albert Calbet
{"title":"Beyond the bottle: exposing the identity-rate gap in microzooplankton ecology.","authors":"Albert Calbet","doi":"10.1093/plankt/fbag070","DOIUrl":"10.1093/plankt/fbag070","url":null,"abstract":"<p><p>Microzooplankton ecology was transformed by the dilution method, which made grazing measurable in natural plankton communities and established protistan grazers as major consumers of marine primary production. Four decades later, the field faces a different challenge. Automated imaging, metabarcoding, meta-omics and machine-learning tools increasingly resolve plankton identity, diversity and spatial structure, but grazer-resolved rates of ingestion, growth, prey selectivity, mortality and carbon transfer remain much harder to measure. This creates an identity-rate gap: community structure is becoming easier to describe than ecological function. The gap should not be reduced to a contrast between one classical method and modern identity tools; it reflects a broader difficulty of pairing organisms, prey, rates and environmental context within the same inference framework. Dilution experiments and related rate approaches remain indispensable, but their interpretation depends on assumptions about prey growth, grazer responses, nutrient limitation, mixoplankton behavior and bottle effects. Preserved samples also remain central to biomass estimates, although fixation and storage distort protists in taxon-specific ways. I argue that the next phase of microzooplankton ecology should not abandon classical incubations, but make them identity-aware, preservation-aware and model-facing through tiered datasets that separate bulk prey mortality, prey-resolved rates, targeted grazer-prey links and model-facing trait constraints.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 5","pages":"fbag070"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13533193/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148874421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Combining pigment analysis and imaging microscopy to identify seasonal patterns in biomass and diversity of plankton. 结合色素分析和成像显微镜识别生物量和浮游生物多样性的季节模式。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-07-16 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag056
Nicole Corbett, Alice C Ortmann, Emmanuel Devred
{"title":"Combining pigment analysis and imaging microscopy to identify seasonal patterns in biomass and diversity of plankton.","authors":"Nicole Corbett, Alice C Ortmann, Emmanuel Devred","doi":"10.1093/plankt/fbag056","DOIUrl":"10.1093/plankt/fbag056","url":null,"abstract":"<p><p>Multi-decade ocean monitoring of plankton is important to distinguish between short-term variability due to environmental drivers and longer-term changes due to climate stressors. Traditional methods for plankton enumeration are time consuming, have long lag times, and preservation may result in cell shrinkage. Fluorometric measurements of Chlorophyll-<i>a</i> concentrations exclude pigment separation, which is required to identify and quantify major taxonomic groups. To address these challenges, flow imaging microscopy (FIM) and high-performance liquid chromatography (HPLC) pigment analysis were combined to optimize the detection of plankton biomass seasonal patterns and their environmental drivers in the Bedford Basin, Nova Scotia, Canada. Eleven plankton sub-groups were detected, three of which overlapped between methods (pigmented dinoflagellates, diatoms and euglenoids). The HPLC was able to detect small cells (e.g. nano-diatoms), while FIM added higher taxonomic resolution and detection of non-pigmented cells, including two of the highest biomass groups, ciliates and non-pigmented dinoflagellates. Hierarchical clustering of the composite community dataset revealed four communities: C1-diatom/cryptophytes, C2-ciliates/chlorophytes, C3-dinoflagellates/haptophytes and C4-diverse community, which were influenced by seasonal cycles associated with nutrient replenishment and stratification. The complementary approaches increased monitoring efficiency of plankton population dynamics, which is essential for understanding the marine ecosystem and potential impacts of anthropogenic climate change.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag056"},"PeriodicalIF":2.0,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13374663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148471345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Warming and acidification alter essential fatty acid profiles in marine diatom Skeletonema marinoi. 升温和酸化改变海洋硅藻马里诺骨骼肌必需脂肪酸谱。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-07-03 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag057
Maria Nicoară, Charlotte L Briddon, Alexandra Mortu, Adriana Hegedűs, Emese Gal, Horia Leonard Banciu, Bogdan Drugă
{"title":"Warming and acidification alter essential fatty acid profiles in marine diatom <i>Skeletonema marinoi</i>.","authors":"Maria Nicoară, Charlotte L Briddon, Alexandra Mortu, Adriana Hegedűs, Emese Gal, Horia Leonard Banciu, Bogdan Drugă","doi":"10.1093/plankt/fbag057","DOIUrl":"10.1093/plankt/fbag057","url":null,"abstract":"<p><p>Marine diatoms are key components of the planetary ocean, playing crucial roles in trophic networks: fixing carbon, producing fatty acids (FA) that cannot be synthesized <i>de novo</i> by higher trophic organisms. To better comprehend how the combined action of climatic change influences the dietary value and the impacts on the upper trophic levels, we used a 2 × 2 factorial experiment to investigate how the FA profiles of <i>Skeletonema marinoi</i> changed in response to the individual and combined effects of warming (7, 19°C) and acidification (400, 1 000 ppm CO<sub>2</sub>). Three <i>S. marinoi</i> strains were exposed for ~ 40 weeks to ambient conditions, warming, acidification and their combination and analyzed for FA profiles, focusing on polyunsaturated (PUFA), omega-3 and omega-6 FA. We found that omega-3 FA increased under warming exposure, while acidification alone led to lower omega-3/omega-6 ratios. In contrast, the ratios increased under warming, alone or coupled with acidification, in all three strains, indicating better food quality for higher trophic levels. Our results suggest the long-term exposure to both drivers will help the marine diatoms to acclimatize to their combined effects, allowing them to buffer the changes brought by warming and ocean acidification.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag057"},"PeriodicalIF":2.0,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13330538/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148391212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mesozooplankton distribution in the Guinea Current Large Marine Ecosystem (GCLME) during the west African monsoon: a comparison across subsystems. 西非季风期间几内亚海流大海洋生态系统(GCLME)中浮游动物分布:各子系统的比较。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-07-02 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag050
Olga Anadoli, Hawa Bint Yaqub, Maryse Aka, Estelle S Konan, Emmanuel Acheampong, Jerome Adonis Zuweh, Lynette John, Stamatina Isari
{"title":"Mesozooplankton distribution in the Guinea Current Large Marine Ecosystem (GCLME) during the west African monsoon: a comparison across subsystems.","authors":"Olga Anadoli, Hawa Bint Yaqub, Maryse Aka, Estelle S Konan, Emmanuel Acheampong, Jerome Adonis Zuweh, Lynette John, Stamatina Isari","doi":"10.1093/plankt/fbag050","DOIUrl":"10.1093/plankt/fbag050","url":null,"abstract":"<p><p>The Guinea Current Large Marine Ecosystem (GCLME), located in the Eastern Equatorial Atlantic, is highly productive and supports important coastal livelihoods and fisheries across West Africa. Mesozooplankton and hydrographic sampling were conducted across an extended area of the GCLME, from Guinea-Bissau to Ghana, during two consecutive surveys between July and September 2017. The sampling coincided with the West African Monsoon and the major upwelling period in the central GCLME (C-GCLME: Côte d'Ivoire, Ghana), while the western GCLME (W-GCLME: Guinea-Bissau to Liberia) experienced its main rainy season. Contrasting hydrographic regimes between the two subsystems were reflected in the zooplankton community structure and distribution patterns. The cooler upwelled waters of the C-GCLME supported significantly higher mesozooplankton stock and a copepod assemblage characterized by opportunistic, or upwelling-associated species (i.e. <i>Calanoides natalis, Centropages chierchiae</i>), most prominently along the Ivorian and eastern Ghanaian coasts. In contrast, the W-GCLME was characterized by thermally stratified, low-salinity waters influenced by riverine inputs, supporting thermophilic, as well as opportunistic species, particularly along the Guinea-Sierra Leone Plateau. These results highlight clear ecological differences between the two subsystems and provide baseline information on zooplankton biomass and biodiversity, relevant to local food web dynamics and ecosystem-based management efforts.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag050"},"PeriodicalIF":2.0,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13326642/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148375991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic and life-history effects of heat stress in early life stages of a marine copepod, Calanus finmarchicus. 热应激对海洋桡足动物Calanus finmarchicus生命早期代谢和生活史的影响。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-06-30 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag048
Sidonie E J Rousseau, Justine Hienne, Dag Altin, Kang Nian Yap
{"title":"Metabolic and life-history effects of heat stress in early life stages of a marine copepod, <i>Calanus finmarchicus</i>.","authors":"Sidonie E J Rousseau, Justine Hienne, Dag Altin, Kang Nian Yap","doi":"10.1093/plankt/fbag048","DOIUrl":"10.1093/plankt/fbag048","url":null,"abstract":"<p><p>Understanding how early life stages of <i>Calanus finmarchicus</i> respond to warming is crucial for predicting the resilience of North Atlantic ecosystems under climate change. We experimentally investigated the effects of heat stress on resting metabolic rate and key life-history traits, including hatching success, developmental time, body size and mortality, as well as the combined effects of temperature and food availability on naupliar survival. Increasing temperature (10°C-24°C) accelerated hatching and development but reduced hatching success, with no hatching observed at 23°C and 24°C. Nauplii developed faster at 15°C than at 10°C but were smaller, indicating a trade-off between growth and developmental rate. Mortality increased with temperature (10°C vs 15°C), although food availability partially mitigated this effect, suggesting that energetic input can buffer, but not fully compensate for thermal stress. Egg metabolic rate remained stable across temperatures, while naupliar metabolic rate followed a thermal performance curve, peaking at 15°C and declining at higher temperatures. These findings reveal strong, stage-specific thermal sensitivities and highlight physiological trade-offs between metabolic demand, growth and survival. As marine heatwaves become more frequent, such responses could lead to smaller, less viable individuals and reduced prey quality, ultimately affecting trophic transfer and marine population productivity.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag048"},"PeriodicalIF":2.0,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13317939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148361362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
If AI writes the paper, who validates the plankton?: a call to reinvest in empirical expertise before the validation gap becomes irreversible. 如果论文是人工智能写的,谁来验证浮游生物?在验证差距变得不可逆转之前,呼吁重新投资经验专业知识。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-06-30 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag045
Albert Calbet
{"title":"If AI writes the paper, who validates the plankton?: a call to reinvest in empirical expertise before the validation gap becomes irreversible.","authors":"Albert Calbet","doi":"10.1093/plankt/fbag045","DOIUrl":"10.1093/plankt/fbag045","url":null,"abstract":"<p><p>Artificial intelligence is already reshaping the production of scientific text, literature synthesis, coding and image-based biological analysis. In plankton research, where automated imaging, molecular surveys and large ecological datasets are expanding rapidly, the critical bottleneck will increasingly be empirical validation: knowing organisms, recognizing artefacts, maintaining cultures, designing biologically meaningful experiments and judging whether automated outputs remain faithful to living plankton. Yet these are precisely the skills that many evaluation systems have allowed to erode. Taxonomy, fieldwork, experimental manipulation, natural history and specimen curation have lost institutional status in a culture that rewards speed, scale and publication volume. The rise of AI makes this loss urgent rather than merely unfortunate. This Horizons article argues that AI will not eliminate the need for plankton experts; it will expose how dangerous it is to lose them. Journals, funders and training programs should therefore revalue empirical expertise, not out of nostalgia, but because taxonomic, experimental and organismal judgment will soon become the bottleneck on which the credibility of AI-assisted plankton science depends.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag045"},"PeriodicalIF":2.0,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13317980/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148361367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of FlowCam Macro and traditional microscopy for studying mesopelagic copepod community composition. FlowCam宏观与传统显微研究中远洋桡足动物群落组成的比较。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-06-26 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag037
Eloïse L-R Savineau, Kathryn B Cook, Anna Belcher, Sophie Fielding, Gabriele Stowasser, Geraint A Tarling, Daniel J Mayor
{"title":"Comparison of FlowCam Macro and traditional microscopy for studying mesopelagic copepod community composition.","authors":"Eloïse L-R Savineau, Kathryn B Cook, Anna Belcher, Sophie Fielding, Gabriele Stowasser, Geraint A Tarling, Daniel J Mayor","doi":"10.1093/plankt/fbag037","DOIUrl":"10.1093/plankt/fbag037","url":null,"abstract":"<p><p>Semiautonomous imaging technologies are increasingly being used to characterize zooplankton communities, albeit with limited comparison to traditional techniques. Here we compared copepod community compositions obtained using a FlowCam Macro with those obtained using a stereomicroscope for the same set of samples. Broad-level community compositions obtained via the FlowCam Macro were similar to those using the microscope, although the microscope was able to achieve greater taxonomic resolution (e.g. genus/species level). Our data support the use of the FlowCam Macro as an alternative to time- and labour-intensive microscopy for broad-level taxonomic classification of mesozooplankton samples.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag037"},"PeriodicalIF":2.0,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13201259/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148042597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diverse sampling programs highlight pulses of Velella velella along the US West Coast. 不同的采样程序突出了沿美国西海岸的Velella Velella的脉冲。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-06-13 eCollection Date: 2026-07-01 DOI: 10.1093/plankt/fbag044
Megan A Cimino, John A Conroy, Ryan Gasbarro, Michael G Jacox, Brian Hoover, Jarrod A Santora, Danial G Palance, Emily C Nazario, Isaac Schroeder, Adena Schonfeld, Allison Cluett, Mercedes Pozo Buil, Nerea Lezama-Ochoa, Elliott L Hazen, Eric Bjorkstedt, Jaime Jahncke, Timothy Jones, Mark D Ohman, Julia Parrish
{"title":"Diverse sampling programs highlight pulses of <i>Velella velella</i> along the US West Coast.","authors":"Megan A Cimino, John A Conroy, Ryan Gasbarro, Michael G Jacox, Brian Hoover, Jarrod A Santora, Danial G Palance, Emily C Nazario, Isaac Schroeder, Adena Schonfeld, Allison Cluett, Mercedes Pozo Buil, Nerea Lezama-Ochoa, Elliott L Hazen, Eric Bjorkstedt, Jaime Jahncke, Timothy Jones, Mark D Ohman, Julia Parrish","doi":"10.1093/plankt/fbag044","DOIUrl":"10.1093/plankt/fbag044","url":null,"abstract":"<p><p>Sporadic mass strandings of the hydrozoan, <i>Velella velella</i>, along the US West Coast fascinate beachcombers and perplex oceanographers. <i>Velella</i> often arrive to the coast in the spring concurrent with a shift in onshore winds and after winters with warmer water temperatures. Understanding the factors that bring <i>Velella</i> to coastal waters provides new information about the ecological impacts of local and basin-scale environmental variability in the northeast Pacific. We summarize several compelling, non-exclusive hypotheses that could explain the recent increase in <i>Velella</i>, including increased population size, larger surface patches and enhanced coastward transport. We compiled a comprehensive dataset spanning planktonic larval to colonial adult life stages from 10 sources covering ~1900-2025. We highlight pulses of <i>Velella</i> and an unprecedented number of strandings and at-sea observations since 2014. We found that wind patterns in the central-east Pacific favor transport toward the coast during years of <i>Velella</i> presence. However, we found no clear relationship between surface frontal features and <i>Velella</i> abundance, nor a consistent association with El Niño. We also identified phalarope abundance as a potential seabird proxy for increased <i>Velella</i> abundance at-sea. Finally, we provide recommendations for future monitoring efforts to improve long-term assessments, given the current inability to clearly distinguish among hypotheses.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 4","pages":"fbag044"},"PeriodicalIF":2.0,"publicationDate":"2026-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13264391/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148252304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preservation-induced distortions in aquatic protists: mechanistic biases, quantitative uncertainties and ecological consequences. 水生原生生物保存引起的扭曲:机械偏差、数量不确定性和生态后果。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-05-29 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag038
Albert Calbet
{"title":"Preservation-induced distortions in aquatic protists: mechanistic biases, quantitative uncertainties and ecological consequences.","authors":"Albert Calbet","doi":"10.1093/plankt/fbag038","DOIUrl":"10.1093/plankt/fbag038","url":null,"abstract":"<p><p>Aquatic protist quantification underpins our understanding of microbial food webs, biogeochemical cycling and ecosystem functioning. Yet, most estimates of abundance, biomass, size structure and community composition still rely on preserved samples, even though fixation alters the organisms it is meant to preserve. Here, I synthesize experimental, methodological and comparative studies spanning several decades to show that fixation is not neutral, but a systematic, taxon-dependent source of distortion. Across common fixatives, including Lugol's iodine, formaldehyde, protargol and glutaraldehyde, cell volume may shrink by >80% or swell by 30-55%, depending on taxon and protocol. Abundance estimates are likewise biased: aldehyde-preserved samples often yield ciliate counts 10-50% lower than Lugol-preserved samples, with even greater losses in fragile naked taxa, while some flagellate staining workflows recover only 20-30% of live abundance. These effects are further modified by storage time, handling and analytical method, generating error cascades that affect biomass estimates, trophic interpretation and carbon flux calculations. Because these artifacts vary across taxa and workflows, universal correction factors are not appropriate. Instead, fixation acts as a selective ecological filter, reshaping plankton communities before observation.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag038"},"PeriodicalIF":2.0,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13220805/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148138224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new visual index for assessing zooplankton biomass and its utility in assessing prey availability for megaplanktivores. 一种新的评估浮游动物生物量的视觉指数及其在评估大型浮游动物猎物可得性中的应用。
IF 2 3区 环境科学与生态学
Journal of Plankton Research Pub Date : 2026-05-27 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag027
Hannah M Moloney, Asia O Armstrong, Guy M W Stevens, Christine L Dudgeon, Joanna L Harris, Kathy A Townsend, Anthony J Richardson
{"title":"A new visual index for assessing zooplankton biomass and its utility in assessing prey availability for megaplanktivores.","authors":"Hannah M Moloney, Asia O Armstrong, Guy M W Stevens, Christine L Dudgeon, Joanna L Harris, Kathy A Townsend, Anthony J Richardson","doi":"10.1093/plankt/fbag027","DOIUrl":"10.1093/plankt/fbag027","url":null,"abstract":"<p><p>Zooplankton are vital links in marine food webs, yet their biomass remains challenging to quantify across broad spatial and temporal scales. This study introduces the Zooplankton Visual Index-a simple, rapid and scalable semi-quantitative method for evaluating zooplankton biomass through underwater observations. Following the establishment of a standardized protocol, validation against <i>in situ</i> net samples demonstrated that index levels increased consistently with measured biomass and predictable shifts in community composition. We then applied the validated index to a 9-year dataset of reef manta ray (<i>Mobula alfredi</i>) sightings in the Maldives. Increased <i>M. alfredi</i> abundance significantly correlated with higher index levels, confirming that the index effectively captures the food environment as an important predictor of behavior and habitat use. Thus, the Zooplankton Visual Index provides an accessible and validated tool for assessing prey availability, enabling researchers, non-specialist field staff and citizen science programs to contribute to broad-scale ecological research and conservation efforts for marine megaplanktivores.</p>","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag027"},"PeriodicalIF":2.0,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13215585/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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