Journal of Plankton Research最新文献_第3页

Effect of salinity on the feeding behavior of Cordylophora caspia (Pallas, 1771) (Hydrozoa). 盐度对海蛾（Cordylophora caspia, 1771）摄食行为的影响。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-01-07 eCollection Date: 2026-01-01 DOI: 10.1093/plankt/fbaf065

S Nandini, S S S Sarma, Henri J Dumont

{"title":"Effect of salinity on the feeding behavior of Cordylophora caspia (Pallas, 1771) (Hydrozoa).","authors":"S Nandini, S S S Sarma, Henri J Dumont","doi":"10.1093/plankt/fbaf065","DOIUrl":"10.1093/plankt/fbaf065","url":null,"abstract":"Cordylophora caspia, is considered an invasive species in America. We isolated this hydrozoan from the brackish water section of the River Tuxpan (State of Veracruz, Mexico) and cultured it in the laboratory on mixed prey of copepods and rotifers at a salinity of 20 g L-1. C. caspia is tolerant of a wide range of salinities. Most studies on C. caspia report its feeding and population growth on Artemia nauplii. Here we tested the effect of salinity on functional response and prey preference on Brachionus plicatilis (Rotifera), Apocyclops panamensis (Copepoda, Cyclopoida) and Nitokra lacustris (Copepoda, Harpacticoida). Experiments were conducted at 25°C. The hydrozoan killed several prey during functional response studies, which we assumed that it would eventually consume. On all prey test species, C. caspia showed a Type II functional response. Prey consumption, in terms of biomass, and preferences was higher on copepods than on rotifers. Prey consumption was higher at salinities of 10 and 20 g L-1 than of 30 g L-1.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 1","pages":"fbaf065"},"PeriodicalIF":2.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12777698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145933913","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

Sedimentary evidence of invasive cladoceran Bosmina (Eubosmina) coregoni presence on the Pacific coast of North America over four decades before first detection. 在首次发现之前的四十多年里，北美洲太平洋沿岸出现了入侵的枝海属博斯米纳（Eubosmina） coregoni的沉积证据。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-11-28 eCollection Date: 2025-11-01 DOI: 10.1093/plankt/fbaf062

Isaac Armstrong, Kathleen R Laird, Brian F Cumming

引用次数: 0

Of sequences and images - diversity and quantity of Arctic epipelagic zooplankton by an integrative approach. 序列和图像-北极浮游动物的多样性和数量的综合方法。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-11-28 eCollection Date: 2025-11-01 DOI: 10.1093/plankt/fbaf059

Silke Laakmann, Astrid Cornils, Katja Metfies, Julian Koplin, Stefan Neuhaus, Carina Bunse, Barbara Niehoff, Hauke Flores

{"title":"Of sequences and images - diversity and quantity of Arctic epipelagic zooplankton by an integrative approach.","authors":"Silke Laakmann, Astrid Cornils, Katja Metfies, Julian Koplin, Stefan Neuhaus, Carina Bunse, Barbara Niehoff, Hauke Flores","doi":"10.1093/plankt/fbaf059","DOIUrl":"10.1093/plankt/fbaf059","url":null,"abstract":"Due to the high sensitivity of zooplankton to environmental fluctuations, monitoring their taxonomic composition, abundance and biomass is of high priority to identify changes in the ecosystem. Recent advances in imaging and molecular technologies promise to greatly accelerate the processing of samples to determine both the diversity and quantity of the zooplankton community. In our study, we analyzed the diversity and quantity of an epipelagic Arctic zooplankton community using multi-marker metabarcoding and imaging analysis (ZooScan). We identified a total of 11 phyla and 58 species in the northern Barents Sea and the Nansen Basin. Metabarcoding identified more taxa than image analysis, while imaging provided quantitative information on abundance and biomass. Multivariate analyses revealed overall the same significant environmental drivers (temperature and percentage of Polar Surface Water in the sampling depth layer) explaining the similarity and spatial distribution of the zooplankton community. For all approaches, similar spatial patterns of the zooplankton community were found. Abundance, biovolume and biomass decreased with increasing latitude within the analyzed regions. Based on this study, we recommend ZooScan image analysis in combination with COI metabarcoding for future monitoring of Arctic zooplankton diversity and quantification to ensure the detection of changes in both aspects of these communities.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 6","pages":"fbaf059"},"PeriodicalIF":2.0,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12661942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145648752","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

Influence of light, temperature, and nutrients on microcystin concentration during a winter cyanobacteria-dominated bloom. 在冬季蓝藻为主的水华期间，光、温度和营养对微囊藻毒素浓度的影响。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-11-13 eCollection Date: 2025-11-01 DOI: 10.1093/plankt/fbaf061

Isabelle M Andersen, Katherine C Rusche, Maggie E Voyles, Alexandra J Bros, Lesley B Knoll

{"title":"Influence of light, temperature, and nutrients on microcystin concentration during a winter cyanobacteria-dominated bloom.","authors":"Isabelle M Andersen, Katherine C Rusche, Maggie E Voyles, Alexandra J Bros, Lesley B Knoll","doi":"10.1093/plankt/fbaf061","DOIUrl":"10.1093/plankt/fbaf061","url":null,"abstract":"Freshwater ecosystems are increasingly at risk of experiencing toxin-producing cyanobacterial blooms during the winter due to anthropogenic nutrient loading and climate change. However, understanding how increased light, temperature and nutrient levels impact cyanotoxin production during the winter is limited, as most research has historically focused on blooms during the summer and fall. We conducted 2 × 2 × 2 incubation experiments in February and March to test the individual and interactive effects of light intensity (50 and 150 μmol m-2 s-1 PAR), elevated temperature (+3°C), and nitrogen and phosphorus enrichment on microcystin concentrations in a Planktothrix agardhii-dominated community sampled from Grand Lake Saint Mary's, a hypereutrophic Ohio reservoir. Microcystin concentration significantly increased with elevated temperature in both months. In February, low light also promoted higher microcystin concentrations, particularly when combined with elevated temperature and nutrient enrichment. In March, nutrient enrichment had individual and interactive effects with temperature that caused higher microcystin concentrations. These results demonstrate that toxin-producing cyanobacteria are active in winter and that climate-driven changes in environmental conditions can interactively increase total toxin concentrations in the water column, even in the non-growing season.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 6","pages":"fbaf061"},"PeriodicalIF":2.0,"publicationDate":"2025-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12613827/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541115","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

Effects of crude oil and high salinity on eggs and early naupliar stages of the copepod Calanus hyperboreus. 原油和高盐度对桡足类大虾卵和早期无足期的影响。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-09-28 eCollection Date: 2025-09-01 DOI: 10.1093/plankt/fbaf053

Iliana Vasiliki Ntinou, Sinja Rist, Sofie Rask, Martin Lindegren, Torkel Gissel Nielsen, Øystein Varpe

引用次数: 0

On the ecological duality between ciliates and dinoflagellates across marine ecosystems. 海洋生态系统中纤毛虫和鞭毛虫的生态二元性研究。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-09-21 eCollection Date: 2025-09-01 DOI: 10.1093/plankt/fbaf049

Albert Calbet

{"title":"On the ecological duality between ciliates and dinoflagellates across marine ecosystems.","authors":"Albert Calbet","doi":"10.1093/plankt/fbaf049","DOIUrl":"10.1093/plankt/fbaf049","url":null,"abstract":"Marine ciliates and dinoflagellates are key microzooplankton groups in oceanic food webs. A prevailing ecological framework suggests that ciliates dominate under cool, mixed conditions typical of late winter and early spring, whereas dinoflagellates prevail in warmer, stratified waters during late spring and summer. This review highlights how temperature, stratification, nutrient dynamics, prey composition, turbulence and top-down control shape seasonal and regional patterns. While the ciliate-dinoflagellate succession is often observed in temperate seas, it is not universal. Polar regions exhibit compressed seasonality, while tropical systems show weak seasonality, often dominated by mixotrophic dinoflagellates. The widespread occurrence of mixotrophy in both groups complicates this duality, allowing species to persist across contrasting environmental conditions. Ultimately, the relative dominance of ciliates or dinoflagellates reflects a context-dependent interplay of multiple drivers rather than a fixed seasonal rule. As climate change intensifies ocean stratification and alters nutrient regimes, understanding these dynamics becomes critical to predict shifts in plankton communities and their consequences for marine biogeochemical processes and ecosystem functioning.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 5","pages":"fbaf049"},"PeriodicalIF":2.0,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12450349/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145124877","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

Temporal dynamics of ecological networks: deciphering changes in cladoceran assemblages over the past ~ 150 years in response to land-use development. 生态网络的时间动态：解读过去~ 150年来枝海洋群落对土地利用发展的响应。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-09-20 eCollection Date: 2025-09-01 DOI: 10.1093/plankt/fbaf047

Jennifer Pham, Zofia E Taranu, Madeleine E Aucoin, Zoë Rabinovitch, Cindy Paquette, Beatrix E Beisner, Irene Gregory-Eaves

{"title":"Temporal dynamics of ecological networks: deciphering changes in cladoceran assemblages over the past ~ 150 years in response to land-use development.","authors":"Jennifer Pham, Zofia E Taranu, Madeleine E Aucoin, Zoë Rabinovitch, Cindy Paquette, Beatrix E Beisner, Irene Gregory-Eaves","doi":"10.1093/plankt/fbaf047","DOIUrl":"10.1093/plankt/fbaf047","url":null,"abstract":"Ecological networks offer a comprehensive view of communities by capturing potential species interactions. While valuable for studying ecological change in the Anthropocene, many studies lack data across expansive temporal and spatial gradients. We addressed this gap by applying network approaches to paleolimnological records capturing strong land-use changes. We analyzed cladoceran assemblages, key aquatic organisms with identifiable subfossils, using two paleolimnological methods: (i) top-bottom comparisons of sediment records from 101 Canadian lakes with varying land-use intensity, and (ii) high-resolution core records from two impacted lakes in eastern Canada. We used correlation matrices of taxon relative abundances to calculate network metrics across land-use types and time periods. We found that lake communities currently experiencing high human impact changed through time, showing a decrease in connectance (proportion of realized to potential links) and an increase in modularity (measure of network subcommunities); these patterns were also observed in our full core analyses as well as in our randomized simulation exercise. Overall, this first pan-Canadian study of zooplankton paleo-networks provides new insights into how lake food webs have changed over a period of accelerated anthropogenic change.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 5","pages":"fbaf047"},"PeriodicalIF":2.0,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12449760/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145113336","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

Multiple environmental stressors mediate cyanobacteria recruitment in microcosms simulating spring conditions from two Midwest US hypereutrophic reservoirs. 多种环境应激源介导蓝藻在模拟美国中西部两个富营养化水库春季条件的微观环境中的招募。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-09-09 eCollection Date: 2025-09-01 DOI: 10.1093/plankt/fbaf045

Maggie Voyles, Lesley B Knoll

{"title":"Multiple environmental stressors mediate cyanobacteria recruitment in microcosms simulating spring conditions from two Midwest US hypereutrophic reservoirs.","authors":"Maggie Voyles, Lesley B Knoll","doi":"10.1093/plankt/fbaf045","DOIUrl":"10.1093/plankt/fbaf045","url":null,"abstract":"Cyanobacteria harmful algal blooms (cyanoHABs) are a complex threat to water quality. Most research to date on the drivers of cyanoHABs focuses on environmental factors in the typical \"growing season\" despite evidence that cyanobacteria overwintering dynamics may have substantial effects on cyanobacteria seasonal succession and bloom formation. Additionally, the growing season is now beginning earlier and ending later in many parts of the world. Here, we examine the impacts of light, temperature and nutrients on the magnitude and timing of cyanobacteria recruitment from sediments in two hypereutrophic reservoirs in the Midwestern USA in the early spring season via microcosm recruitment experiments. We observed that recruitment was greatest at the first sampling point (Day 3), then declined throughout the rest of the 18-day experiment for both reservoirs. Further, increasing light and temperature significantly promoted recruitment in both systems, while nutrient additions were only a significant driver of recruitment in one lake. The recruited cyanobacteria community identity was similar in both lakes, with Planktothrix, Raphidiopsis and Pseudanabaena being most abundant. This study highlights the complex, interactive effects of environmental variables on cyanobacteria recruitment.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 5","pages":"fbaf045"},"PeriodicalIF":2.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12418944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145040059","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

Effects of food quantity and quality on the life history of Daphnia lumholtzi in Mwanza Gulf (Lake Victoria, Tanzania). 食物数量和质量对坦桑尼亚姆万扎湾（维多利亚湖）水蚤生活史的影响

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-08-30 eCollection Date: 2025-09-01 DOI: 10.1093/plankt/fbaf042

Ilse J M Cornelissen, Jacobus Vijverberg, Theo H Frank, Leopold A J Nagelkerke

{"title":"Effects of food quantity and quality on the life history of Daphnia lumholtzi in Mwanza Gulf (Lake Victoria, Tanzania).","authors":"Ilse J M Cornelissen, Jacobus Vijverberg, Theo H Frank, Leopold A J Nagelkerke","doi":"10.1093/plankt/fbaf042","DOIUrl":"10.1093/plankt/fbaf042","url":null,"abstract":"Until the 1950s, large-bodied calanoids and cladocerans dominated the zooplankton community of Lake Victoria, whereas cyclopoid copepods only comprised 10% of microcrustaceans. From the 1960's onwards, cyclopoid copepods increased to 70-90% of zooplankton and cladocerans, now dominated by small species, decreased to ca. 5%. Concomitantly phytoplankton biomass increased and shifted from dominance of diatoms to Cyanobacteria, which were hypothesized to be of less nutritional quality, causing the shift in zooplankton. We investigated whether the natural assemblage of Cyanobacteria in Mwanza Gulf negatively affected growth and fecundity of cladocerans. In 2010-2011, we performed life-history experiments with the cladoceran Daphnia lumholtzi, feeding it natural seston from Mwanza Gulf from three different locations. A laboratory-strain of the green alga Scenedesmus obliquus, proven to be high-quality food, was used as a control. Growth of D. lumholtzi in the rainy season and at one station in the dry season was just as high as in the control treatment. If there were negative effects of natural seston these were small. Although the evidence is circumstantial, this suggests that Cyanobacteria and/or their detritus could have been better food than expected and that food quality is not limiting the growth of D. lumholtzi in L. Victoria.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 5","pages":"fbaf042"},"PeriodicalIF":2.0,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12397853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144957936","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

Meta-analysis of stage-specific Calanus finmarchicus vertical distribution in relation to hydrography and chlorophyll in the North Atlantic. 北大西洋不同阶段金雀鳝垂直分布与水文和叶绿素关系的meta分析。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2025-06-21 eCollection Date: 2025-07-01 DOI: 10.1093/plankt/fbaf019

Eva Chamorro, Kanchana Bandara, Kaja Balazy, Cecilie Broms, Malin Daase, Eilif Gaard, N Sören Häfker, Xabier Irigoien, Slawomir Kwasniewski, Martin Lindegren, Anders Mosbech, Bettina Meyer, Hildur Petursdottir, Emilia Trudnowska, Sünnje L Basedow

{"title":"Meta-analysis of stage-specific Calanus finmarchicus vertical distribution in relation to hydrography and chlorophyll in the North Atlantic.","authors":"Eva Chamorro, Kanchana Bandara, Kaja Balazy, Cecilie Broms, Malin Daase, Eilif Gaard, N Sören Häfker, Xabier Irigoien, Slawomir Kwasniewski, Martin Lindegren, Anders Mosbech, Bettina Meyer, Hildur Petursdottir, Emilia Trudnowska, Sünnje L Basedow","doi":"10.1093/plankt/fbaf019","DOIUrl":"10.1093/plankt/fbaf019","url":null,"abstract":"Calanus finmarchicus is an important, extensively studied zooplankton species in the North Atlantic. Many studies have explored its abundance and life cycle, but basin-wide relationships between its vertical distribution and environment during the feeding season remain poorly known. We conducted a meta-analysis of stage-specific vertical distribution and its relationships with environmental variables (temperature, salinity, irradiance, chlorophyll-a) in the epipelagic layer (0-200 m) of the North Atlantic during spring and summer (21 March to 21 September). Fitting a GAM model, we analyzed data from 47 years (1971-2018) with the aim to discern common, stage-specific responses to environment across the area. Highest abundances were observed in the upper 50 m in spring (at 5°C) and summer (at 7.5°C). The timing of the phytoplankton bloom emerged as a key driver determining vertical distribution, with all stages found shallower during the seasonal surface Chl.-a maximum. Contrary to reports of mismatch with global warming, the data indicated a region-wide match of spring bloom and Calanus. In the coldest areas of its habitat (< 1°C), the copepods stayed closer to surface, potentially to fulfill development, while in warmest areas (>10°C), early stages stayed deeper likely to avoid warm surface waters.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"47 4","pages":"fbaf019"},"PeriodicalIF":2.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12205936/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144528463","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