Journal of Plankton Research最新文献_第4页

First report of the rare tintinnid genus Stelidiella Kofoid and Campbell 1929 in the Indian Ocean 首次报告印度洋中罕见的褐斑鱼属 Stelidiella Kofoid and Campbell 1929

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-02-01 DOI: 10.1093/plankt/fbae001

T P Sarun, Jagadish S Patil

{"title":"First report of the rare tintinnid genus Stelidiella Kofoid and Campbell 1929 in the Indian Ocean","authors":"T P Sarun, Jagadish S Patil","doi":"10.1093/plankt/fbae001","DOIUrl":"https://doi.org/10.1093/plankt/fbae001","url":null,"abstract":"This study provides detailed information on the morphometry and distribution of some rare tintinnids species found in the Indian Ocean. The morphological features (scabbard-shaped with a fenestrated collar) reported here resemble those of the genus Stelidiella. Here, lorica morphology (fenestra arrangement and oral margin (OM) pattern) was the sole criteria for Stelidiella species identification. The dimensions and morphology (presence of two layers of fenestrae rings with smooth OMs) resemble the original description of Stelidiella fenestrata, a warm-water species. We found both small (260 μm long) and large S. fenestrata (309 μm long) with smaller and larger bowls in the former and latter, respectively. In the Indian Ocean, S. fenestrata was more abundant (i) between 12oN and 18oS (particularly, central Indian Ocean) similar to that reported in the Pacific Ocean; (ii) in the mesopelagic zone (100–1000 m) than the epipelagic zone (0–100 m) and (iii) in the winter season of December 2021–January 2022 than in spring inter-monsoon of March–May 2021. The S. fenestrata, despite being in low abundance (2–26 individuals 10 m−3), is widespread in the region, and their role in the ecosystem merits further investigation.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"58 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139668874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Community structure and distribution pattern of appendicularians in the Kuroshio–Oyashio transitional zone during summer 黑潮-大盐生过渡带夏季阑尾类的群落结构和分布模式

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-27 DOI: 10.1093/plankt/fbad056

Riki Sato, Taketoshi Kodama, Kiyotaka Hidaka

{"title":"Community structure and distribution pattern of appendicularians in the Kuroshio–Oyashio transitional zone during summer","authors":"Riki Sato, Taketoshi Kodama, Kiyotaka Hidaka","doi":"10.1093/plankt/fbad056","DOIUrl":"https://doi.org/10.1093/plankt/fbad056","url":null,"abstract":"The Kuroshio–Oyashio transitional zone (KOTZ), constituting the complex water–mass structure surrounding the oceanfront system, is one of the most important fisheries grounds in the western North Pacific. It serves as spawning and nursery sites among several commercially important fish species that consume appendicularians, particularly during the larval stages. In the present study, we investigated the species composition, abundance and biomass of appendicularian assemblages at 20 stations in the KOTZ in the summer of 2018. Appendicularian communities, including 24 species belonging to 7 genera—the highest record for the western North Pacific—were divided into three groups, corresponding to the anticyclonic eddy, a trough between the eddy and the Kuroshio Extension, and the rest of the study area. Statistically, the temperature within the surface layer and strength of water turbulence appear to strongly affect the quantitative and qualitative characteristics of the appendicularian community structure in the KOTZ. This relationship could be attributed to the effect of temperature on the population size and species coexistence, potentially offering an advantage for appendicularians in the future warming ocean scenario and the role of water turbulence in the predatory impact exerted by carnivores on appendicularians.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"329 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139579528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal variability drives differences in the structure of the calanoid copepod community in two contrasting regions of the Gulf of Mexico 季节性变化导致墨西哥湾两个截然不同地区桡足类群落结构的差异

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-24 DOI: 10.1093/plankt/fbad057

Aurora Gaona-Hernández, Eduardo Suárez-Morales, Lorena Linacre, Jesus C Compaire, J Rubén Lara-Lara, Sharon Z Herzka

{"title":"Seasonal variability drives differences in the structure of the calanoid copepod community in two contrasting regions of the Gulf of Mexico","authors":"Aurora Gaona-Hernández, Eduardo Suárez-Morales, Lorena Linacre, Jesus C Compaire, J Rubén Lara-Lara, Sharon Z Herzka","doi":"10.1093/plankt/fbad057","DOIUrl":"https://doi.org/10.1093/plankt/fbad057","url":null,"abstract":"Calanoid copepods (CC) are key contributors to the biological carbon pump and pelagic trophic dynamics. The deep-water regions of Perdido and the Bay of Campeche in the western and southern Gulf of Mexico (GM), respectively, differ in hydrography and productivity, leading to potential differences in copepod biomass and community structure. Zooplankton (0-200 m) were collected from the shelf edge to the deep-water region during the winter and summer autumn 2016. Calanoids contributed 38-60% of total zooplankton biomass and 55-70% of overall copepod abundance. The Bay of Campeche had the highest total zooplankton biovolume (287±120 ml 1000 m−3) and total mean copepod abundance (CC and non-calanoids ~146,000 ind. 1000 m−3) during summer-autumn, likely resulting from cross-shelf nutrient transport fueling local productivity. Adult females dominated calanoid numerical abundance (43-50%), thus suggesting a high reproductive potential. Cluster analysis showed differences between seasons (~40% dissimilarity) but not regions. Environmental conditions explained 22% of the variability in community composition; the winter assemblage was significantly related to oxygen concentrations, whereas the summer-autumn community was related to warmer conditions and higher integrated chlorophyll-a concentrations. The CC community responded to seasonal changes more than regionally related hydrographic differences, with likely implications for organic matter cycling and export.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"255 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139552163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sediment trap samples reveal regional differences in the population structure of Calanus hyperboreus from the Arctic Ocean 沉积物捕集器样本揭示了北冰洋Calanus hyperboreus种群结构的区域差异

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-23 DOI: 10.1093/plankt/fbad059

Koki Tokuhiro, Kohei Matsuno, Jonaotaro Onodera, Makoto Sampei, Amane Fujiwara, Naomi Harada, Barbara Niehoff, Eva-Maria Nöthig, Atsushi Yamaguchi

{"title":"Sediment trap samples reveal regional differences in the population structure of Calanus hyperboreus from the Arctic Ocean","authors":"Koki Tokuhiro, Kohei Matsuno, Jonaotaro Onodera, Makoto Sampei, Amane Fujiwara, Naomi Harada, Barbara Niehoff, Eva-Maria Nöthig, Atsushi Yamaguchi","doi":"10.1093/plankt/fbad059","DOIUrl":"https://doi.org/10.1093/plankt/fbad059","url":null,"abstract":"Calanus hyperboreus is one of the dominant copepod species in the Arctic zooplankton communities. The impact of climate change varies among regions within the Arctic, implying that C. hyperboreus populations may be differently affected at different locations, but knowledge on seasonal population dynamics in relation to biogeography is scarce. To fill this gap, we counted C. hyperboreus in samples from sediment traps that were moored from 2009 to 2014 in three regions of the Arctic Ocean (eastern Fram Strait, northern Chukchi Sea and MacKenzie Trough). The C. hyperboreus flux increased between April and May in all regions, likely associated with the ascent from overwintering depth to the surface. In the descent period, high fluxes were observed between July and September in the Fram Strait, between September and November in the northern Chukchi Sea, and between August and October in the MacKenzie Trough, suggesting that the timing of descent varied among the regions characterized by differences in light regime, phytoplankton development and water temperature. The copepodite stage composition in the eastern Fram Strait and the MacKenzie Trough varied with season, suggesting successful local reproduction while it was uniform in the northern Chukchi Sea, possibly because the population is fueled by advection.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"110 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139552158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal variation in the population structure and production of the copepod Calanus sinicus in the Yellow Sea 黄海桡足类(Calanus sinicus)种群结构和产量的季节变化

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-05 DOI: 10.1093/plankt/fbad055

Garam Kim, Wongyu Park, Yeonjung Lee, Hyung-Ku Kang

{"title":"Seasonal variation in the population structure and production of the copepod Calanus sinicus in the Yellow Sea","authors":"Garam Kim, Wongyu Park, Yeonjung Lee, Hyung-Ku Kang","doi":"10.1093/plankt/fbad055","DOIUrl":"https://doi.org/10.1093/plankt/fbad055","url":null,"abstract":"We estimated the total production of Calanus sinicus over four seasons by measuring somatic and egg production rates in the Yellow Sea. In the process of measuring somatic production, the length–weight relationship and growth rates of C. sinicus in this region were also derived. The population abundance and biomass of C. sinicus were especially high in spring. All copepodite stages had similar proportions in spring, whereas the late stages and adults were most common in summer. The mean total production of the C. sinicus population was 107.6–259.7 μg C m−3 day−1, ranging from higher values in spring to lower values in summer. The annual total production of C. sinicus in the Yellow Sea was 64.3 mg C m−3 year−1 (4032 mg C m−2 year−1). The production of C. sinicus was positively correlated with chlorophyll a concentration, rather than water temperature or salinity. This study is the first to quantify the secondary production of C. sinicus in the Yellow Sea. These findings will broaden our understanding of the ecology of C. sinicus and its contribution to the Yellow Sea food web.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"101 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139104068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutrient availability is the main driver of nanophytoplankton phago-mixotrophy in North American lake surface waters 养分供应是北美湖泊表层水域纳米浮游植物相混营养的主要驱动力

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-04 DOI: 10.1093/plankt/fbad054

Philippe Le Noac’h, Bruno Cremella, Jihyeon Kim, Sara Soria-Píriz, Paul A del Giorgio, Amina I Pollard, Yannick Huot, Beatrix E Beisner

{"title":"Nutrient availability is the main driver of nanophytoplankton phago-mixotrophy in North American lake surface waters","authors":"Philippe Le Noac’h, Bruno Cremella, Jihyeon Kim, Sara Soria-Píriz, Paul A del Giorgio, Amina I Pollard, Yannick Huot, Beatrix E Beisner","doi":"10.1093/plankt/fbad054","DOIUrl":"https://doi.org/10.1093/plankt/fbad054","url":null,"abstract":"There has been limited research on the abiotic and biotic factors affecting the prevalence of phago-mixotrophy (prevMixo) among nanophytoplankton across freshwater ecosystems. In recent years, large-scale sampling campaigns like the EPA-National Lakes Assessment and the NSERC LakePulse survey have generated surface water community composition data for hundreds of lakes across North America, covering large environmental gradients. We present results from our analyses of the nanophytoplankton community data from these two surveys, focusing on a taxonomic comparison of the mixoplankton communities across ecoregions and multivariate analyses of the environmental drivers of the prevMixo. We identified potentially phago-mixotrophic taxa in the majority of sites and across all ecozones sampled. Lake trophic state was identified as the main predictor of nanophytoplankton resource-acquisition strategy assemblages, with lower prevalence and diversity of mixoplankton communities in more eutrophic lakes. Lake trophic state also controlled the composition of the mixoplankton community and increased total phosphorus levels were associated with a loss of mixoplankton diversity. This study represents the most comprehensive assessment of the prevMixo in lake nanophytoplankton communities to date spanning hundreds of sites and a dozen ecozones.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"10 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139104175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reproductive biology, elemental composition and diel vertical migration of the cosmopolitan warm-temperate pelagic tunicate Soestia zonaria 世界性暖温带中上层鳞栉水母的繁殖生物学、元素组成和昼夜垂直迁移

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2024-01-04 DOI: 10.1093/plankt/fbad053

Florian Lüskow, Alexis A Bahl, Moira Décima, Deborah K Steinberg, Evgeny A Pakhomov

{"title":"Reproductive biology, elemental composition and diel vertical migration of the cosmopolitan warm-temperate pelagic tunicate Soestia zonaria","authors":"Florian Lüskow, Alexis A Bahl, Moira Décima, Deborah K Steinberg, Evgeny A Pakhomov","doi":"10.1093/plankt/fbad053","DOIUrl":"https://doi.org/10.1093/plankt/fbad053","url":null,"abstract":"Pelagic tunicates (appendicularians, doliolids, pyrosomes, salps) are cosmopolitan members of open-ocean food webs that serve as a link to the microbial loop and play a disproportional role in vertical carbon flux. Soestia zonaria is an oceanic salp species studied for more than a century, but little information exists on its ecology. Specimens of Soestia collected between 2008 and 2021 during four research expeditions (three to the Chatham Rise, New Zealand, and one to the Northeast Atlantic) using MOCNESS-1 net and large midwater trawl were analyzed for reproductive biology, stoichiometry and vertical distribution. Populations at the Chatham Rise sampled in early winter were more developed than in spring/early summer and dominated by small and medium-sized sexually reproducing blastozooids. Whole Soestia specimens had high organic content (mean ± SD = 32.8 ± 7.5%) and carbon-to-nitrogen values (6.8 ± 0.9) compared with other salp species, indicating a stronger dependency on carbon to meet its nutritional needs. Depth-stratified sampling showed that Soestia is primarily a low-amplitude diel vertical migrator occurring in the top 150 m of the water column, but also found at depths exceeding 500 m. Soestia is primarily an epipelagic salp species adapted to living in warm-temperate nutrient-depleted and more productive ocean regions.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"24 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139104131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pioneers of plankton research: Priscilla Susan Bury (1799–1872) 浮游生物研究的先驱普莉希拉-苏珊-布里（1799-1872）

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-12-12 DOI: 10.1093/plankt/fbad051

John R. Dolan

引用次数: 0

Spatial variability in size and lipid content of the marine copepod Calanus finmarchicus across the Northwest Atlantic continental shelves: implications for North Atlantic right whale prey quality 西北大西洋大陆架上海洋桡足类(Calanus finmarchicus)大小和脂质含量的空间变化：对北大西洋露脊鲸猎物质量的影响

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-12-10 DOI: 10.1093/plankt/fbad047

Laura K Helenius, Erica J H Head, Phoebe Jekielek, Christopher D Orphanides, Pierre Pepin, Geneviève Perrin, Stéphane Plourde, Marc Ringuette, Jeffrey A Runge, Harvey J Walsh, Catherine L Johnson

{"title":"Spatial variability in size and lipid content of the marine copepod Calanus finmarchicus across the Northwest Atlantic continental shelves: implications for North Atlantic right whale prey quality","authors":"Laura K Helenius, Erica J H Head, Phoebe Jekielek, Christopher D Orphanides, Pierre Pepin, Geneviève Perrin, Stéphane Plourde, Marc Ringuette, Jeffrey A Runge, Harvey J Walsh, Catherine L Johnson","doi":"10.1093/plankt/fbad047","DOIUrl":"https://doi.org/10.1093/plankt/fbad047","url":null,"abstract":"Copepod size and energy content are influenced by regional and seasonal variation in temperature and food conditions, with implications for planktivorous consumers such as the endangered North Atlantic right whale (Eubalaena glacialis). Historical data (1990–2020) on Calanus finmarchicus stage CV copepodite prosome length and oil sac metrics were analyzed to determine the extent of variation in individual body size and estimated lipid and energy content in five regions of the Northwest Atlantic continental shelves [Gulf of Maine (GoM), Scotian Shelf (SS), Gulf of St. Lawrence (GSL), St. Lawrence Estuary (SLE) and Newfoundland Shelf]. Large-scale spatial patterns in size and lipid content were related to latitude, indicating that C. finmarchicus CV in the GSL and SLE were historically larger in body size, and had significantly higher lipid content compared with those in the GoM and the SS. The observed patterns of C. finmarchicus CV size and lipid storage capacity suggest that regional variation in whale prey energy content can play a role in the suitability of current and future whale foraging habitats in the Northwest Atlantic, with the larger lipid-rich individuals in the GSL providing a high-quality diet compared with those in southern areas.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"15 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138568621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Automatic estimation of lipid content from in situ images of Arctic copepods using machine learning 利用机器学习从北极桡足动物的原位图像中自动估计脂质含量

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-12-01 DOI: 10.1093/plankt/fbad048

Frédéric Maps, Piotr Pasza Storożenko, Jędrzej Świeżewski, Sakina-Dorothée Ayata

{"title":"Automatic estimation of lipid content from in situ images of Arctic copepods using machine learning","authors":"Frédéric Maps, Piotr Pasza Storożenko, Jędrzej Świeżewski, Sakina-Dorothée Ayata","doi":"10.1093/plankt/fbad048","DOIUrl":"https://doi.org/10.1093/plankt/fbad048","url":null,"abstract":"In Arctic marine ecosystems, large planktonic copepods form a crucial hub of matter and energy. Their energy-rich lipid stores play a central role in marine trophic networks and the biological carbon pump. Since the past ~15 years, in situ imaging devices provide images whose resolution allows us to estimate an individual copepod’s lipid sac volume, and this reveals many ecological information inaccessible otherwise. One such device is the Lightframe On-sight Keyspecies Investigation. However, when done manually, weeks of work are needed by trained personnel to obtain such information for only a handful of sampled images. We removed this hurdle by training a machine learning algorithm (a convolutional neural network) to estimate the lipid content of individual Arctic copepods from the in situ images. This algorithm obtains such information at a speed (a few minutes) and a resolution (individuals, over half a meter on the vertical), allowing us to revisit historical datasets of in situ images to better understand the dynamics of lipid production and distribution and to develop efficient monitoring protocols at a moment when marine ecosystems are facing rapid upheavals and increasing threats.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"60 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138534383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0