Journal of Plankton Research最新文献_第2页

Spatial distribution of early life stages of fish along horizontal and vertical gradients in the canary current large marine ecosystem. 金丝雀流大型海洋生态系统中鱼类早期生命阶段沿水平和垂直梯度的空间分布。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-05-20 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag030

Omaima Mouiret, Hinde Abdelouahab, Maik Tiedemann, Yassine Goliat, Omar Ettahiri, Tarik Baibai, Ahmed Errhif, Stamatina Isari

{"title":"Spatial distribution of early life stages of fish along horizontal and vertical gradients in the canary current large marine ecosystem.","authors":"Omaima Mouiret, Hinde Abdelouahab, Maik Tiedemann, Yassine Goliat, Omar Ettahiri, Tarik Baibai, Ahmed Errhif, Stamatina Isari","doi":"10.1093/plankt/fbag030","DOIUrl":"10.1093/plankt/fbag030","url":null,"abstract":"The Canary Current Large Marine Ecosystem (CCLME) is among the most productive upwelling systems globally, supporting high fish biomass and biodiversity. We examined horizontal patterns of early fish stages along a 241-nautical-mile transect and vertical distributions down to 800 m at four of 11 stations, within the strong permanent upwelling area of the CCLME in December 2019. An inshore-offshore transition of the larval assemblages was observed, shifting from dominance of European pilchard (Sardina pilchardus) within the upwelling domain to an offshore assemblage dominated by mesopelagic families such as Myctophidae, Phosichthyidae, and Gonostomatidae. Mesoscale activity near the 3000 m isobath significantly influenced larval distribution patterns. A distinct vertical structuring was evident, with transforming stages of mesopelagic taxa contributing increasingly toward deeper layers. The gonostomatid Cyclothone prevailed between 400 and 800 m, showing no evidence of diel vertical migration, unlike other mesopelagic fish species. Size distributions of Cyclothone revealed a clear ontogenetic vertical pattern, with larger individuals occurring at greater depths, while transforming stages comprised a substantial proportion of total sampled net biomass within the deeper strata (up to 34.9%). These findings are discussed in the context of the ecology of this genus and its importance to the carbon flow in the mesopelagic zone.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag030"},"PeriodicalIF":2.0,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13189272/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147987410","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

Molecular detections of 14 amphidomatacean species (Dinophyceae) and their temperature-associated distribution in subarctic waters off eastern Hokkaido, Japan. 日本北海道东部亚北极海域14种两栖动物的分子检测及其温度相关分布。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-05-13 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag029

Kazuma Nakano, Koyo Kuwata, Takehiro Shimonaka, Urban Tillmann, Taketoshi Kodama, Kazutaka Takahashi, Mitsunori Iwataki

{"title":"Molecular detections of 14 amphidomatacean species (Dinophyceae) and their temperature-associated distribution in subarctic waters off eastern Hokkaido, Japan.","authors":"Kazuma Nakano, Koyo Kuwata, Takehiro Shimonaka, Urban Tillmann, Taketoshi Kodama, Kazutaka Takahashi, Mitsunori Iwataki","doi":"10.1093/plankt/fbag029","DOIUrl":"10.1093/plankt/fbag029","url":null,"abstract":"To better understand the diversity and ecological characteristics of the amphidomatacean dinoflagellates around Japan, their genetic diversity was examined using ITS2-based environmental DNA (eDNA) metabarcoding and cell densities of toxigenic species Azadinium poporum and Az. spinosum were estimated using LSU rDNA-based quantitative PCR (qPCR). Samples were collected in the offshore waters off the coast of Hokkaido, Japan, during the summer in 2023 and 2024. eDNA metabarcoding revealed the presence of 14 species (11 Azadinium and three Amphidoma), including Azadinium concinnum previously not found in the western North Pacific. The presence of Am. languida was also detected based on the comparison of ITS phylogeny with the toxigenic strains. Five species predominantly detected in the 2024 cruise exhibited their temperature-associated distribution in the species and intraspecific group (ribotype) levels; Am. fulgens, Az. dexteroporum, and Az. spinosum (ribotype A) were found in the warm-water (warming Kuroshio-Oyashio mixed water), while Az. dalianense, Az. polongum, and Az. spinosum (ribotype C) in the cold-water (surface-warmed subarctic water). Moreover, species-specific qPCR analysis of two toxigenic species revealed the predominant distribution of Az. spinosum in the pelagic western North Pacific for the first time, while Az. poporum was rarely detected.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag029"},"PeriodicalIF":2.0,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13171040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147941886","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

Interclonal differences in incipient limiting level (ILL) in Daphnia magna. 大水蚤初始限制水平（il）的克隆间差异。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-04-23 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag022

Anna Bednarska, Joanna Pijanowska, Barbara Pietrzak

{"title":"Interclonal differences in incipient limiting level (ILL) in Daphnia magna.","authors":"Anna Bednarska, Joanna Pijanowska, Barbara Pietrzak","doi":"10.1093/plankt/fbag022","DOIUrl":"10.1093/plankt/fbag022","url":null,"abstract":"Seasonal variation in phytoplankton biomass imposes strong selection pressures on planktonic herbivores such as Daphnia, with both low and high food availability shaping life-history strategies. While the threshold food level (TFL) has been widely studied, the incipient limiting level (ILL)-the food concentration above which growth or reproduction no longer increases-remains poorly characterized at the intraspecific level. This study aimed to quantify clonal variation in ILL among four genetically distinct Daphnia magna clones originating from pond and lake habitats. Individuals were reared along a gradient of algal concentrations under standardized laboratory conditions, and somatic growth rate and intrinsic rate of increase were calculated. Results showed substantial among-clone variation in ILL for somatic growth rate, spanning ~ 0.7-1 mg CorgL-1. Similar patterns were observed for population growth rates, with one clone requiring significantly higher food levels (~1.3 mg CorgL-1) to achieve maximum fitness. These findings challenge the general assumption of a universal ILL and suggest that its clonal variation is generated by local adaptation to food regimes. Incorporating clone-specific ILLs into ecological models may improve predictions of population dynamics and community composition under fluctuating trophic conditions.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag022"},"PeriodicalIF":2.0,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13104730/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147774776","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

Maternal contributions to individual behavior in Daphnia. 母系对水蚤个体行为的影响。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-04-07 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag021

Andrzej Mikulski, Joanna Pijanowska

{"title":"Maternal contributions to individual behavior in Daphnia.","authors":"Andrzej Mikulski, Joanna Pijanowska","doi":"10.1093/plankt/fbag021","DOIUrl":"10.1093/plankt/fbag021","url":null,"abstract":"In a laboratory experiment conducted in thermally stratified glass tubes, so-called \"plankton organs\", we tested two alternative hypotheses concerning the role of maternal effects on Daphnia vertical migration behavior induced by the presence of a fish predator. The first hypothesis states that maternal experience does not influence the induction of this behavior because it is quickly induced and does not require information about the persistence of the threat. The second hypothesis states that maternal fear increases the intensity of the individual responses of their descendants to the threat. However, both hypotheses turned out to be false. Fear experienced by the mother discourages offspring from incurring the costs of defense. The obtained results allow to hypothesize that the process of optimizing defense mechanisms may integrate decisions across several generations and include compensation for costs of defense in the previous generation. Regardless of the need to further validate this hypothesis, our results demonstrate the complexity of optimizing the induction of defense mechanisms in Daphnia.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag021"},"PeriodicalIF":2.0,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13064924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147674486","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

The role of alternative microbial resources in competition between Daphnia species. 替代微生物资源在水蚤种间竞争中的作用。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-04-07 eCollection Date: 2026-05-01 DOI: 10.1093/plankt/fbag020

Irina Feniova, Tomasz Brzeziński, Andrew R Dzialowski, Anna Bednarska, Bartosz Kiersztyn, Varos G Petrosyan, Natalia Zilitinkevich, Piotr Dawidowicz

{"title":"The role of alternative microbial resources in competition between Daphnia species.","authors":"Irina Feniova, Tomasz Brzeziński, Andrew R Dzialowski, Anna Bednarska, Bartosz Kiersztyn, Varos G Petrosyan, Natalia Zilitinkevich, Piotr Dawidowicz","doi":"10.1093/plankt/fbag020","DOIUrl":"10.1093/plankt/fbag020","url":null,"abstract":"We studied competitive interactions between Daphnia longispina and D. magna competing for a single algal resource of varying quality in treatments with low and enhanced amounts of bacteria. We proposed that the outcome of competition is influenced by the concentration of bacteria. We used three types of food including high-quality green alga Chlamydomonas klinobasis, phosphorus-poor C. klinobasis and the cyanobacterium Synechococcus elongatus, which is deficient in essential lipids. The medium in the low-bacteria experiment was replaced daily, while the medium in the enhanced-bacteria experiment was changed every other day, thus allowing for prolonged bacterial growth as determined by an additional short-term experiment. Furthermore, we found significantly higher abundances of both Daphnia species in monocultures with enhanced bacteria compared to those in the low-bacteria experiment, indicating that they were feeding on bacteria. In the experiment involving low bacterial densities, the dominance of both Daphnia species depended on the quality of the algae. However, D. magna was the superior competitor across all food quality treatments in the enhanced bacteria experiment. We conclude that enhanced bacteria are a significant factor that shapes competitive interactions in cladoceran communities.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 3","pages":"fbag020"},"PeriodicalIF":2.0,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13064842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147674527","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

Seasonal variability of the microzooplankton biomass and community composition on the Northeast US Shelf. 美国东北陆架浮游微动物生物量和群落组成的季节变化。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-03-28 eCollection Date: 2026-03-01 DOI: 10.1093/plankt/fbag018

Frankie Lopez, Pierre Marrec, Susanne Menden-Deuer

{"title":"Seasonal variability of the microzooplankton biomass and community composition on the Northeast US Shelf.","authors":"Frankie Lopez, Pierre Marrec, Susanne Menden-Deuer","doi":"10.1093/plankt/fbag018","DOIUrl":"10.1093/plankt/fbag018","url":null,"abstract":"Grazing on phytoplankton by microzooplankton is a critical process in making energy available to higher trophic levels, shaping marine food webs, and biogeochemical cycling. Despite its key role, the drivers of grazing remain poorly constrained due to the concurrent influences of biotic and abiotic factors. To elucidate the impact of microzooplankton biomass and community composition on grazing rates, we measured ciliate and dinoflagellate biomass in boreal summer and winter from 2018-2023, at three stations spanning the Northeast US Shelf from coastal Rhode Island, USA to the shelf break. This record of microzooplankton biomass encompasses the seasonal and spatial variability from shore to shelf. Dinoflagellate biomass showed a clear seasonal shift from larger (>20 μm) cells in winter to smaller ones in summer, while ciliate biomass lacked seasonal trends. Anomalies in community composition coincided with disruptions in the typical seasonal phytoplankton size structure, suggesting that microzooplankton size structure was linked to the size of available prey. In winter, microzooplankton biomass was positively correlated with microzooplankton grazing, indicating that the mechanism moderating the planktonic food web structure changes seasonally. These results inform our understanding of planktonic food webs by identifying the linkage between grazing and seasonal changes in phytoplankton community structure that impact energy transfer to higher trophic levels.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 2","pages":"fbag018"},"PeriodicalIF":2.0,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13031981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147574623","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

The effect of environmental variation on stable coexistence of competitors: experimental evidence from zooplankton (Daphnia magna and D. pulex). 环境变化对竞争者稳定共存的影响：来自浮游动物（大水蚤和水蚤）的实验证据。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-03-28 eCollection Date: 2026-03-01 DOI: 10.1093/plankt/fbag019

Sigurd Einum, Tim Burton, Silje M Larsen, Varsha Rani, Aline M Lee

{"title":"The effect of environmental variation on stable coexistence of competitors: experimental evidence from zooplankton (Daphnia magna and D. pulex).","authors":"Sigurd Einum, Tim Burton, Silje M Larsen, Varsha Rani, Aline M Lee","doi":"10.1093/plankt/fbag019","DOIUrl":"10.1093/plankt/fbag019","url":null,"abstract":"Coexistence of competing species may be influenced by environmental variation. Specifically, theory suggests that short-term environmental variability can contribute to long-term coexistence among competitors. Here, we address the role of environmental variation on competitive interactions between two zooplankton species (Daphnia magna and D. pulex) which are found sympatrically, but where mechanisms allowing for such coexistence remain unclear. Using competition experiments, we show that under constant temperature conditions, one of the species (D. magna) was greatly outnumbered by their competitor (D. pulex). Furthermore, population simulations showed a significant possibility for extinction of the inferior competitor, and distributions of estimated niche differences and relative fitness differences included parameter sets that precluded stable coexistence. Under fluctuating temperature conditions, however, the numerical dominance by D. pulex was considerably reduced. Moreover, under these conditions the occurrence of extinction of D. magna in the simulations became negligible, and all parameter sets drawn from the estimated distributions of niche differences and relative fitness differences met the requirements for stable coexistence. Our results provide empirical support for previous model results showing how short-term variation in temperature can promote species coexistence.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 2","pages":"fbag019"},"PeriodicalIF":2.0,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13032039/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147574438","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 fish stocking and removal on plankton communities and trophic status in deep alpine-type lakes of the Five Lakes Valley (Tatra Mountains): Bottom-up and top-down regulation in the ecology of offshore animals. The lifetime passion of Z.Maciej Gliwicz. 五湖谷（塔特拉山脉）深高寒型湖泊放养和撤除对浮游生物群落和营养状况的影响：近海动物生态中自下而上和自上而下的调控Z.Maciej Gliwicz一生的激情。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-03-26 eCollection Date: 2026-03-01 DOI: 10.1093/plankt/fbag016

Mirosław Ślusarczyk, Tomasz Brzeziński, Piotr Dawidowicz, Andrzej Kapusta, Tomasz Zwijacz-Kozica, Tomasz Kuczyński, Agnieszka Ochocka, Krzysztof Kozłowski

{"title":"Effects of fish stocking and removal on plankton communities and trophic status in deep alpine-type lakes of the Five Lakes Valley (Tatra Mountains): Bottom-up and top-down regulation in the ecology of offshore animals. The lifetime passion of Z.Maciej Gliwicz.","authors":"Mirosław Ślusarczyk, Tomasz Brzeziński, Piotr Dawidowicz, Andrzej Kapusta, Tomasz Zwijacz-Kozica, Tomasz Kuczyński, Agnieszka Ochocka, Krzysztof Kozłowski","doi":"10.1093/plankt/fbag016","DOIUrl":"10.1093/plankt/fbag016","url":null,"abstract":"Most alpine-type lakes in the Tatra Mountains were stocked with salmonid fish during the 19th and 20th centuries, triggering profound ecological shifts. In the Five Lakes Valley, trout introductions into Przedni Staw Polski, Czarny Staw Polski and Wielki Staw Polski had contrasting effects on pelagic ecosystems. In the smaller and shallower Przedni Staw Polski and Czarny Staw Polski, fish introduction was associated with the loss of large-bodied zooplankton, increased trophic status and a rapid decline in water transparency-from 13-18 m to 5-7 m. Between 2021 and 2023, partial fish removal in Przedni Staw Polski resulted in a marked increase in water transparency (from 7 to 17 m), coinciding with reduced surface phytoplankton biomass. This improvement likely reflected decreased phosphorus input from fish excretion rather than enhanced zooplankton grazing. Large-bodied cladocerans did not recolonize the lake, although small-bodied taxa increased in abundance. In contrast, Czarny Staw Polski-where fish remain abundant-showed no signs of recovery: water transparency declined further and zooplankton community structure remained unchanged. Unlike the other stocked lakes, Wielki Staw Polski-the largest and deepest-retains high transparency and large-bodied zooplankton, likely due to low fish density or availability of predator-free refugia. While partial fish control in Przedni Staw Polski yielded rapid benefits, restoring natural ecosystem functioning in these fragile alpine ecosystems will require complete fish eradication.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 2","pages":"fbag016"},"PeriodicalIF":2.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13019441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147574596","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

Effect of phytoplankton morphology on the measurement of biovolume. 浮游植物形态对生物体积测定的影响。

IF 2 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2026-03-05 eCollection Date: 2026-03-01 DOI: 10.1093/plankt/fbag011

Christopher R Farrow, Josef D Ackerman

{"title":"Effect of phytoplankton morphology on the measurement of biovolume.","authors":"Christopher R Farrow, Josef D Ackerman","doi":"10.1093/plankt/fbag011","DOIUrl":"10.1093/plankt/fbag011","url":null,"abstract":"Algal biovolume is a standard measurement for limnological and oceanographic studies, which is used to proxy biomass and productivity. Manual and automatic methods can be applied to estimate biovolume from phytoplankton images. We examined the effects of algal shape and taxon (largely genus) on the accuracy of automatic image-based biovolume estimates for samples from a large oligotrophic embayment (Georgian Bay, Lake Huron). Specifically, we compared biovolume estimates based on equivalent spherical diameter, Feret-based diameter and two shape-based estimates (cylinder and prolate spheroid) against the manual biovolume measurements using correlation, linear regression and analysis of variance. The automatic biovolume estimates were all moderately to strongly correlated with the manual measurements, but the automatic cylinder method was the most accurate, overall. The automatic cylinder method overpredicted the manual total biovolume measurement of the community by 59%, but it had the strongest linear relationship with manual total biovolume, and the strongest correlation based on the biovolumes of individual genera. When algal taxa were assigned to 11 general shape categories, we observed significant differences in the accuracy with which they were measured. Results suggest that the cylinder biovolume method provides a reasonable estimate of total biovolume in algal communities that have a diversity of elongated shapes.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 2","pages":"fbag011"},"PeriodicalIF":2.0,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016873/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147521206","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

Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift. 缅因湾西部中浮游动物群落对变化的海洋学条件的响应：2010年制度转变。

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/fbaf066

Emma C Dullaert, Jeffrey A Runge, Lee Karp-Boss, Shawn Shellito, Cameron R S Thompson, Rebecca J Jones

{"title":"Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift.","authors":"Emma C Dullaert, Jeffrey A Runge, Lee Karp-Boss, Shawn Shellito, Cameron R S Thompson, Rebecca J Jones","doi":"10.1093/plankt/fbaf066","DOIUrl":"10.1093/plankt/fbaf066","url":null,"abstract":"The Gulf of Maine has experienced pronounced changes in recent decades, including rapid warming and changes in circulation. Notably, a shift in water masses entering the Gulf occurred around 2010. Concurrent declines in critically endangered North Atlantic right whales, lobster recruitment and abundance of the foundational, subarctic copepod, Calanus finmarchicus, have designated the 2010 event as a possible regime shift. We present results from two time series stations documenting change in the mesozooplankton biomass and community composition before and after 2010. We examine both seasonal and interannual variability to elucidate potential changes in phenological drivers of the mesozooplankton population in Wilkinson Basin. Abundances of smaller copepod species increased across all seasons between the two time periods, and significantly lower abundance of late-stage C. finmarchicus was observed in late summer through winter, resulting in a decrease in mesozooplankton biomass but increases in biodiversity indices post-2010. The results highlight the contribution of ecologically important increases in chlorophyll-a concentration and warmer temperatures as drivers of mesozooplankton growth and reproduction. An important ecological influence on food availability to smaller copepods may be reduced grazing competition by late-stage C. finmarchicus, a consequence of its declined abundance due to increased predation loss and reduced advective supply.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"48 1","pages":"fbaf066"},"PeriodicalIF":2.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12777979/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145933892","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